Add quic fingerprints and preset configs

Update quic-go with uquic 0.0.6
Co-authored-by: ll11l1lIllIl1lll <88377095+ll11l1lIllIl1lll@users.noreply.github.com> Co-authored-by: mmmray <142015632+mmmray@users.noreply.github.com> Co-authored-by: 风扇滑翔翼 <Fangliding.fshxy@outlook.com>
2025-08-22 17:46:48 +08:00 · 2024-11-02 16:42:41 -04:00 · 2024-11-02 16:42:41 -04:00
251 changed files with 4836 additions and 6114 deletions
--- a/.github/docker/Dockerfile
+++ b/.github/docker/Dockerfile
@@ -22,7 +22,7 @@ VOLUME /etc/xray
 ARG TZ=Asia/Shanghai
 ENV TZ=$TZ
 ENTRYPOINT [ "/usr/bin/xray" ]
-CMD [ "-confdir", "/etc/xray/" ]
+CMD [ "-config", "/etc/xray/config.json" ]

 ARG flavor=v2fly
 COPY --from=build --chmod=644 /$flavor /usr/share/xray
--- a/.github/workflows/release-win7.yml
+++ b/.github/workflows/release-win7.yml
@@ -1,117 +0,0 @@
-name: Build and Release for Windows 7
-
-on:
-  workflow_dispatch:
-  release:
-    types: [published]
-  push:
-  pull_request:
-    types: [opened, synchronize, reopened]
-
-jobs:
-  build:
-    permissions:
-      contents: write
-    strategy:
-      matrix:
-        include:
-          # BEGIN Windows 7
-          - goos: windows
-            goarch: amd64
-            assetname: win7-64
-          - goos: windows
-            goarch: 386
-            assetname: win7-32
-          # END Windows 7
-      fail-fast: false
-
-    runs-on: ubuntu-latest
-    env:
-      GOOS: ${{ matrix.goos}}
-      GOARCH: ${{ matrix.goarch }}
-      CGO_ENABLED: 0
-    steps:
-      - name: Checkout codebase
-        uses: actions/checkout@v4
-
-      - name: Show workflow information
-        run: |
-          _NAME=${{ matrix.assetname }}
-          echo "GOOS: ${{ matrix.goos }}, GOARCH: ${{ matrix.goarch }}, RELEASE_NAME: $_NAME"
-          echo "ASSET_NAME=$_NAME" >> $GITHUB_ENV
-
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-          check-latest: true
-
-      - name: Setup patched builder
-        run: |
-          GOSDK=$(go env GOROOT)
-          rm -r $GOSDK/*
-          cd $GOSDK
-          curl -O -L https://github.com/XTLS/go-win7/releases/latest/download/go-for-win7-linux-amd64.zip
-          unzip ./go-for-win7-linux-amd64.zip -d $GOSDK
-          rm ./go-for-win7-linux-amd64.zip
-
-      - name: Get project dependencies
-        run: go mod download
-
-      - name: Build Xray
-        run: |
-          mkdir -p build_assets
-          COMMID=$(git describe --always --dirty)
-          echo 'Building Xray for Windows 7...'
-          go build -o build_assets/xray.exe -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
-          echo 'CreateObject("Wscript.Shell").Run "xray.exe -config config.json",0' > build_assets/xray_no_window.vbs
-          echo 'Start-Process -FilePath ".\xray.exe" -ArgumentList "-config .\config.json" -WindowStyle Hidden' > build_assets/xray_no_window.ps1
-          # The line below is for without running conhost.exe version. Commented for not being used. Provided for reference.
-          # go build -o build_assets/wxray.exe -trimpath -buildvcs=false -ldflags="-H windowsgui -X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
-
-      - name: Restore Geodat Cache
-        uses: actions/cache/restore@v4
-        with:
-          path: resources
-          key: xray-geodat-
-
-      - name: Copy README.md & LICENSE
-        run: |
-          mv -f resources/* build_assets
-          cp ${GITHUB_WORKSPACE}/README.md ./build_assets/README.md
-          cp ${GITHUB_WORKSPACE}/LICENSE ./build_assets/LICENSE
-
-      - name: Create ZIP archive
-        if: github.event_name == 'release'
-        shell: bash
-        run: |
-          pushd build_assets || exit 1
-          touch -mt $(date +%Y01010000) *
-          zip -9vr ../Xray-${{ env.ASSET_NAME }}.zip .
-          popd || exit 1
-          FILE=./Xray-${{ env.ASSET_NAME }}.zip
-          DGST=$FILE.dgst
-          for METHOD in {"md5","sha1","sha256","sha512"}
-          do
-            openssl dgst -$METHOD $FILE | sed 's/([^)]*)//g' >>$DGST
-          done
-
-      - name: Change the name
-        run: |
-          mv build_assets Xray-${{ env.ASSET_NAME }}
-
-      - name: Upload files to Artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: Xray-${{ env.ASSET_NAME }}
-          path: |
-            ./Xray-${{ env.ASSET_NAME }}/*
-
-      - name: Upload binaries to release
-        uses: svenstaro/upload-release-action@v2
-        if: github.event_name == 'release'
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ./Xray-${{ env.ASSET_NAME }}.zip*
-          tag: ${{ github.ref }}
-          file_glob: true
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,15 +1,76 @@
 name: Build and Release

+# NOTE: This Github Actions file depends on the Makefile.
+#       Building the correct package requires the correct binaries generated by the Makefile. To 
+#       ensure the correct output, the Makefile must accept the appropriate input and compile the 
+#       correct file with the correct name. If you need to modify this file, please ensure it won't 
+#       disrupt the Makefile.
+
 on:
  workflow_dispatch:
  release:
    types: [published]
  push:
+    branches:
+      - main
+    paths:
+      - "**/*.go"
+      - "go.mod"
+      - "go.sum"
+      - ".github/workflows/release.yml"
  pull_request:
    types: [opened, synchronize, reopened]
-
+    paths:
+      - "**/*.go"
+      - "go.mod"
+      - "go.sum"
+      - ".github/workflows/release.yml"
 jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Restore Cache
+        uses: actions/cache/restore@v4
+        with:
+          path: resources
+          key: xray-geodat-
+
+      - name: Update Geodat
+        id: update
+        uses: nick-fields/retry@v3
+        with:
+          timeout_minutes: 60
+          retry_wait_seconds: 60
+          max_attempts: 60
+          command: |
+            [ -d 'resources' ] || mkdir resources
+            LIST=('geoip geoip geoip' 'domain-list-community dlc geosite')
+            for i in "${LIST[@]}"
+            do
+              INFO=($(echo $i | awk 'BEGIN{FS=" ";OFS=" "} {print $1,$2,$3}'))
+              FILE_NAME="${INFO[2]}.dat"
+              echo -e "Verifying HASH key..."
+              HASH="$(curl -sL "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat.sha256sum" | awk -F ' ' '{print $1}')"
+              if [ -s "./resources/${FILE_NAME}" ] && [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ]; then
+                  continue
+              else
+                  echo -e "Downloading https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat..."
+                  curl -L "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat" -o ./resources/${FILE_NAME}
+                  echo -e "Verifying HASH key..."
+                  [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ] || { echo -e "The HASH key of ${FILE_NAME} does not match cloud one."; exit 1; }
+                  echo "unhit=true" >> $GITHUB_OUTPUT
+              fi
+            done
+
+      - name: Save Cache
+        uses: actions/cache/save@v4
+        if: ${{ steps.update.outputs.unhit }}
+        with:
+          path: resources
+          key: xray-geodat-${{ github.sha }}-${{ github.run_number }}
+
  build:
+    needs: prepare
    permissions:
      contents: write
    strategy:
@@ -17,7 +78,9 @@ jobs:
        # Include amd64 on all platforms.
        goos: [windows, freebsd, openbsd, linux, darwin]
        goarch: [amd64, 386]
+        gotoolchain: [""]
        patch-assetname: [""]
+
        exclude:
          # Exclude i386 on darwin
          - goarch: 386
@@ -92,6 +155,16 @@ jobs:
            goarch: arm
            goarm: 7
          # END OPENBSD ARM
+          # BEGIN Windows 7
+          - goos: windows
+            goarch: amd64
+            gotoolchain: 1.21.4
+            patch-assetname: win7-64
+          - goos: windows
+            goarch: 386
+            gotoolchain: 1.21.4
+            patch-assetname: win7-32
+          # END Windows 7
      fail-fast: false

    runs-on: ubuntu-latest
@@ -114,7 +187,7 @@ jobs:
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
-          go-version-file: go.mod
+          go-version: ${{ matrix.gotoolchain || '1.23' }}
          check-latest: true

      - name: Get project dependencies
@@ -123,24 +196,10 @@ jobs:
      - name: Build Xray
        run: |
          mkdir -p build_assets
-          COMMID=$(git describe --always --dirty)
-          if [[ ${GOOS} == 'windows' ]]; then
-            echo 'Building Xray for Windows...'
-            go build -o build_assets/xray.exe -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
-            echo 'CreateObject("Wscript.Shell").Run "xray.exe -config config.json",0' > build_assets/xray_no_window.vbs
-            echo 'Start-Process -FilePath ".\xray.exe" -ArgumentList "-config .\config.json" -WindowStyle Hidden' > build_assets/xray_no_window.ps1
-            # The line below is for without running conhost.exe version. Commented for not being used. Provided for reference.
-            # go build -o build_assets/wxray.exe -trimpath -buildvcs=false -ldflags="-H windowsgui -X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
-          else
-            echo 'Building Xray...'
-            go build -o build_assets/xray -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
-            if [[ ${GOARCH} == 'mips' || ${GOARCH} == 'mipsle' ]]; then
-              echo 'Building soft-float Xray for MIPS/MIPSLE 32-bit...'
-              GOMIPS=softfloat go build -o build_assets/xray_softfloat -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
-            fi
-          fi
+          make
+          find . -maxdepth 1 -type f -regex './\(wxray\|xray\|xray_softfloat\)\(\|.exe\)' -exec mv {} ./build_assets/ \;

-      - name: Restore Geodat Cache
+      - name: Restore Cache
        uses: actions/cache/restore@v4
        with:
          path: resources
--- a/.github/workflows/scheduled-assets-update.yml
+++ b/.github/workflows/scheduled-assets-update.yml
@@ -1,65 +0,0 @@
-name: Scheduled assets update
-
-# NOTE: This Github Actions is required by other actions, for preparing other packaging assets in a 
-#       routine manner, for example: GeoIP/GeoSite.
-#       Currently updating:
-#       - Geodat (GeoIP/Geosite)
-
-on:
-  workflow_dispatch:
-  schedule:
-    # Update GeoData on every day (22:30 UTC)
-    - cron: '30 22 * * *'
-  push:
-    # Prevent triggering update request storm
-    paths:
-      - ".github/workflows/scheduled-assets-update.yml"
-  pull_request:
-    # Prevent triggering update request storm
-    paths:
-      - ".github/workflows/scheduled-assets-update.yml"
-
-jobs:
-  geodat:
-    if: github.event.schedule == '30 22 * * *' || github.event_name == 'push'|| github.event_name == 'pull_request' || github.event_name == 'workflow_dispatch'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Restore Geodat Cache
-        uses: actions/cache/restore@v4
-        with:
-          path: resources
-          key: xray-geodat-
-
-      - name: Update Geodat
-        id: update
-        uses: nick-fields/retry@v3
-        with:
-          timeout_minutes: 60
-          retry_wait_seconds: 60
-          max_attempts: 60
-          command: |
-            [ -d 'resources' ] || mkdir resources
-            LIST=('Loyalsoldier v2ray-rules-dat geoip geoip' 'Loyalsoldier v2ray-rules-dat geosite geosite')
-            for i in "${LIST[@]}"
-            do
-              INFO=($(echo $i | awk 'BEGIN{FS=" ";OFS=" "} {print $1,$2,$3,$4}'))
-              FILE_NAME="${INFO[3]}.dat"
-              echo -e "Verifying HASH key..."
-              HASH="$(curl -sL "https://raw.githubusercontent.com/${INFO[0]}/${INFO[1]}/release/${INFO[2]}.dat.sha256sum" | awk -F ' ' '{print $1}')"
-              if [ -s "./resources/${FILE_NAME}" ] && [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ]; then
-                  continue
-              else
-                  echo -e "Downloading https://raw.githubusercontent.com/${INFO[0]}/${INFO[1]}/release/${INFO[2]}.dat..."
-                  curl -L "https://raw.githubusercontent.com/${INFO[0]}/${INFO[1]}/release/${INFO[2]}.dat" -o ./resources/${FILE_NAME}
-                  echo -e "Verifying HASH key..."
-                  [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ] || { echo -e "The HASH key of ${FILE_NAME} does not match cloud one."; exit 1; }
-                  echo "unhit=true" >> $GITHUB_OUTPUT
-              fi
-            done
-
-      - name: Save Geodat Cache
-        uses: actions/cache/save@v4
-        if: ${{ steps.update.outputs.unhit }}
-        with:
-          path: resources
-          key: xray-geodat-${{ github.sha }}-${{ github.run_number }}
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -2,8 +2,20 @@ name: Test

 on:
  push:
+    branches:
+      - main
+    paths:
+      - "**/*.go"
+      - "go.mod"
+      - "go.sum"
+      - ".github/workflows/*.yml"
  pull_request:
    types: [opened, synchronize, reopened]
+    paths:
+      - "**/*.go"
+      - "go.mod"
+      - "go.sum"
+      - ".github/workflows/*.yml"

 jobs:
  test:
@@ -20,9 +32,9 @@ jobs:
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
-          go-version-file: go.mod
+          go-version: '1.23'
          check-latest: true
-      - name: Restore Geodat Cache
+      - name: Restore Cache
        uses: actions/cache/restore@v4
        with:
          path: resources
--- a/.gitignore
+++ b/.gitignore
@@ -14,18 +14,10 @@
 # Dependency directories (remove the comment below to include it)
 # vendor/

-# macOS specific files
 *.DS_Store
-
-# IDE specific files
-.idea/
-.vscode/
-
-# Archive files
+.idea
 *.zip
 *.tar.gz
-
-# Binaries
 xray
 xray_softfloat
 mockgen
@@ -34,13 +26,8 @@ vprotogen
 errorgen
 !common/errors/errorgen/
 *.dat
-
-# Build assets
+.vscode
 /build_assets

 # Output from dlv test
 **/debug.*
-
-# Certificates
-*.crt
-*.key
--- a/37
+++ b/37
@@ -0,0 +1,37 @@
+NAME = xray
+
+VERSION=$(shell git describe --always --dirty)
+
+# NOTE: This MAKEFILE can be used to build Xray-core locally and in Automatic workflows. It is \
+	provided for convenience in automatic building and functions as a part of it.
+# NOTE: If you need to modify this file, please be aware that:\
+	- This file is not the main Makefile; it only accepts environment variables and builds the \
+	binary.\
+	- Automatic building expects the correct binaries to be built by this Makefile. If you \
+	intend to propose a change to this Makefile, carefully review the file below and ensure \
+	that the change will not accidentally break the automatic building:\
+		.github/workflows/release.yml \
+	Otherwise it is recommended to contact the project maintainers.
+
+LDFLAGS = -X github.com/xtls/xray-core/core.build=$(VERSION) -s -w -buildid=
+PARAMS = -trimpath -ldflags "$(LDFLAGS)" -v
+MAIN = ./main
+PREFIX ?= $(shell go env GOPATH)
+ifeq ($(GOOS),windows)
+OUTPUT = $(NAME).exe
+ADDITION = go build -o w$(NAME).exe -trimpath -ldflags "-H windowsgui $(LDFLAGS)" -v $(MAIN)
+else
+OUTPUT = $(NAME)
+endif
+ifeq ($(shell echo "$(GOARCH)" | grep -Eq "(mips|mipsle)" && echo true),true) # 
+ADDITION = GOMIPS=softfloat go build -o $(NAME)_softfloat -trimpath -ldflags "$(LDFLAGS)" -v $(MAIN)
+endif
+.PHONY: clean build
+
+build:
+	go build -o $(OUTPUT) $(PARAMS) $(MAIN)
+	$(ADDITION)
+
+clean:
+	go clean -v -i $(PWD)
+	rm -f xray xray.exe wxray.exe xray_softfloat
--- a/README.md
+++ b/README.md
@@ -6,9 +6,7 @@

 ## Donation & NFTs

- **ETH/USDT/USDC: `0xDc3Fe44F0f25D13CACb1C4896CD0D321df3146Ee`**
- **Project X NFT: [Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633)**
- **REALITY NFT: [XHTTP: Beyond REALITY](https://github.com/XTLS/Xray-core/discussions/4113)**
+[Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633)

 ## License

@@ -24,9 +22,7 @@

 [Project X Channel](https://t.me/projectXtls)

-[Project VLESS](https://t.me/projectVless) (Русский)
-
-[Project XHTTP](https://t.me/projectXhttp) (Persian)
+[Project VLESS](https://t.me/projectVless) (non-Chinese)

 ## Installation

@@ -38,7 +34,6 @@
  - [teddysun/xray](https://hub.docker.com/r/teddysun/xray)
  - [wulabing/xray_docker](https://github.com/wulabing/xray_docker)
 - Web Panel - **WARNING: Please DO NOT USE plain HTTP panels like 3X-UI**, as they are believed to be bribed by Iran GFW for supporting plain HTTP by default and refused to change (https://github.com/XTLS/Xray-core/pull/3884#issuecomment-2439595331), which has already put many users' data security in danger in the past few years. **If you are already using 3X-UI, please switch to the following panels, which are verified to support HTTPS and SSH port forwarding only:**
-  - [Remnawave](https://github.com/remnawave/panel)
  - [Marzban](https://github.com/Gozargah/Marzban)
  - [Xray-UI](https://github.com/qist/xray-ui)
  - [Hiddify](https://github.com/hiddify/Hiddify-Manager)
@@ -75,8 +70,6 @@
  - [PassWall](https://github.com/xiaorouji/openwrt-passwall), [PassWall 2](https://github.com/xiaorouji/openwrt-passwall2)
  - [ShadowSocksR Plus+](https://github.com/fw876/helloworld)
  - [luci-app-xray](https://github.com/yichya/luci-app-xray) ([openwrt-xray](https://github.com/yichya/openwrt-xray))
- Asuswrt-Merlin
-  - [XRAYUI](https://github.com/DanielLavrushin/asuswrt-merlin-xrayui)
 - Windows
  - [v2rayN](https://github.com/2dust/v2rayN)
  - [Furious](https://github.com/LorenEteval/Furious)
@@ -86,7 +79,6 @@
  - [X-flutter](https://github.com/XTLS/X-flutter)
  - [SaeedDev94/Xray](https://github.com/SaeedDev94/Xray)
 - iOS & macOS arm64
-  - [Happ](https://apps.apple.com/app/happ-proxy-utility/id6504287215)
  - [FoXray](https://apps.apple.com/app/foxray/id6448898396)
  - [Streisand](https://apps.apple.com/app/streisand/id6450534064)
 - macOS arm64 & x64
@@ -104,7 +96,6 @@
  - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
 - Xray Tools
  - [xray-knife](https://github.com/lilendian0x00/xray-knife)
-  - [xray-checker](https://github.com/kutovoys/xray-checker)
 - Xray Wrapper
  - [XTLS/libXray](https://github.com/XTLS/libXray)
  - [xtlsapi](https://github.com/hiddify/xtlsapi)
@@ -128,27 +119,25 @@
 - [Xray-core v1.0.0](https://github.com/XTLS/Xray-core/releases/tag/v1.0.0) was forked from [v2fly-core 9a03cc5](https://github.com/v2fly/v2ray-core/commit/9a03cc5c98d04cc28320fcee26dbc236b3291256), and we have made & accumulated a huge number of enhancements over time, check [the release notes for each version](https://github.com/XTLS/Xray-core/releases).
 - For third-party projects used in [Xray-core](https://github.com/XTLS/Xray-core), check your local or [the latest go.mod](https://github.com/XTLS/Xray-core/blob/main/go.mod).

-## One-line Compilation
+## Compilation

 ### Windows (PowerShell)

 ```powershell
 $env:CGO_ENABLED=0
-go build -o xray.exe -trimpath -buildvcs=false -ldflags="-s -w -buildid=" -v ./main
+go build -o xray.exe -trimpath -ldflags "-s -w -buildid=" ./main
 ```

 ### Linux / macOS

 ```bash
-CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -ldflags="-s -w -buildid=" -v ./main
+CGO_ENABLED=0 go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
 ```

 ### Reproducible Releases

-Make sure that you are using the same Go version, and remember to set the git commit id (7 bytes):
-
 ```bash
-CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=REPLACE -s -w -buildid=" -v ./main
+make
 ```

 ## Stargazers over time
--- a/app/dispatcher/default.go
+++ b/app/dispatcher/default.go
@@ -106,7 +106,7 @@ func init() {
 	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		d := new(DefaultDispatcher)
 		if err := core.RequireFeatures(ctx, func(om outbound.Manager, router routing.Router, pm policy.Manager, sm stats.Manager, dc dns.Client) error {
-			core.OptionalFeatures(ctx, func(fdns dns.FakeDNSEngine) {
+			core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) {
 				d.fdns = fdns
 			})
 			return d.Init(config.(*Config), om, router, pm, sm, dc)
@@ -181,18 +181,6 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 				}
 			}
 		}
-
-		if p.Stats.UserOnline {
-			name := "user>>>" + user.Email + ">>>online"
-			if om, _ := stats.GetOrRegisterOnlineMap(d.stats, name); om != nil {
-				sessionInbounds := session.InboundFromContext(ctx)
-				userIP := sessionInbounds.Source.Address.String()
-				om.AddIP(userIP)
-				// log Online user with ips
-				// errors.LogDebug(ctx, "user>>>" + user.Email + ">>>online", om.Count(), om.List())
-
-			}
-		}
 	}

 	return inboundLink, outboundLink
--- a/app/dispatcher/fakednssniffer.go
+++ b/app/dispatcher/fakednssniffer.go
@@ -28,7 +28,7 @@ func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error)
 	}
 	return protocolSnifferWithMetadata{protocolSniffer: func(ctx context.Context, bytes []byte) (SniffResult, error) {
 		outbounds := session.OutboundsFromContext(ctx)
-		ob := outbounds[len(outbounds)-1]
+		ob := outbounds[len(outbounds) - 1]
 		if ob.Target.Network == net.Network_TCP || ob.Target.Network == net.Network_UDP {
 			domainFromFakeDNS := fakeDNSEngine.GetDomainFromFakeDNS(ob.Target.Address)
 			if domainFromFakeDNS != "" {
--- a/app/dns/config.pb.go
+++ b/app/dns/config.pb.go
@@ -128,16 +128,13 @@ type NameServer struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields

-	Address            *net.Endpoint                `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
-	ClientIp           []byte                       `protobuf:"bytes,5,opt,name=client_ip,json=clientIp,proto3" json:"client_ip,omitempty"`
-	SkipFallback       bool                         `protobuf:"varint,6,opt,name=skipFallback,proto3" json:"skipFallback,omitempty"`
-	PrioritizedDomain  []*NameServer_PriorityDomain `protobuf:"bytes,2,rep,name=prioritized_domain,json=prioritizedDomain,proto3" json:"prioritized_domain,omitempty"`
-	Geoip              []*router.GeoIP              `protobuf:"bytes,3,rep,name=geoip,proto3" json:"geoip,omitempty"`
-	OriginalRules      []*NameServer_OriginalRule   `protobuf:"bytes,4,rep,name=original_rules,json=originalRules,proto3" json:"original_rules,omitempty"`
-	QueryStrategy      QueryStrategy                `protobuf:"varint,7,opt,name=query_strategy,json=queryStrategy,proto3,enum=xray.app.dns.QueryStrategy" json:"query_strategy,omitempty"`
-	AllowUnexpectedIPs bool                         `protobuf:"varint,8,opt,name=allowUnexpectedIPs,proto3" json:"allowUnexpectedIPs,omitempty"`
-	Tag                string                       `protobuf:"bytes,9,opt,name=tag,proto3" json:"tag,omitempty"`
-	TimeoutMs          uint64                       `protobuf:"varint,10,opt,name=timeoutMs,proto3" json:"timeoutMs,omitempty"`
+	Address           *net.Endpoint                `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+	ClientIp          []byte                       `protobuf:"bytes,5,opt,name=client_ip,json=clientIp,proto3" json:"client_ip,omitempty"`
+	SkipFallback      bool                         `protobuf:"varint,6,opt,name=skipFallback,proto3" json:"skipFallback,omitempty"`
+	PrioritizedDomain []*NameServer_PriorityDomain `protobuf:"bytes,2,rep,name=prioritized_domain,json=prioritizedDomain,proto3" json:"prioritized_domain,omitempty"`
+	Geoip             []*router.GeoIP              `protobuf:"bytes,3,rep,name=geoip,proto3" json:"geoip,omitempty"`
+	OriginalRules     []*NameServer_OriginalRule   `protobuf:"bytes,4,rep,name=original_rules,json=originalRules,proto3" json:"original_rules,omitempty"`
+	QueryStrategy     QueryStrategy                `protobuf:"varint,7,opt,name=query_strategy,json=queryStrategy,proto3,enum=xray.app.dns.QueryStrategy" json:"query_strategy,omitempty"`
 }

 func (x *NameServer) Reset() {
@@ -219,27 +216,6 @@ func (x *NameServer) GetQueryStrategy() QueryStrategy {
 	return QueryStrategy_USE_IP
 }

-func (x *NameServer) GetAllowUnexpectedIPs() bool {
-	if x != nil {
-		return x.AllowUnexpectedIPs
-	}
-	return false
-}
-
-func (x *NameServer) GetTag() string {
-	if x != nil {
-		return x.Tag
-	}
-	return ""
-}
-
-func (x *NameServer) GetTimeoutMs() uint64 {
-	if x != nil {
-		return x.TimeoutMs
-	}
-	return 0
-}
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -532,7 +508,7 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x2e, 0x64, 0x6e, 0x73, 0x1a, 0x1c, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74,
 	0x2f, 0x64, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f,
 	0x74, 0x6f, 0x1a, 0x17, 0x61, 0x70, 0x70, 0x2f, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2f, 0x63,
-	0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x92, 0x05, 0x0a, 0x0a,
+	0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xb2, 0x04, 0x0a, 0x0a,
 	0x4e, 0x61, 0x6d, 0x65, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x12, 0x33, 0x0a, 0x07, 0x61, 0x64,
 	0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x78, 0x72,
 	0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x45, 0x6e,
@@ -558,13 +534,7 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x18, 0x07, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x1b, 0x2e, 0x78,
 	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x51, 0x75, 0x65, 0x72,
 	0x79, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x52, 0x0d, 0x71, 0x75, 0x65, 0x72, 0x79,
-	0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x12, 0x2e, 0x0a, 0x12, 0x61, 0x6c, 0x6c, 0x6f,
-	0x77, 0x55, 0x6e, 0x65, 0x78, 0x70, 0x65, 0x63, 0x74, 0x65, 0x64, 0x49, 0x50, 0x73, 0x18, 0x08,
-	0x20, 0x01, 0x28, 0x08, 0x52, 0x12, 0x61, 0x6c, 0x6c, 0x6f, 0x77, 0x55, 0x6e, 0x65, 0x78, 0x70,
-	0x65, 0x63, 0x74, 0x65, 0x64, 0x49, 0x50, 0x73, 0x12, 0x10, 0x0a, 0x03, 0x74, 0x61, 0x67, 0x18,
-	0x09, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x74, 0x61, 0x67, 0x12, 0x1c, 0x0a, 0x09, 0x74, 0x69,
-	0x6d, 0x65, 0x6f, 0x75, 0x74, 0x4d, 0x73, 0x18, 0x0a, 0x20, 0x01, 0x28, 0x04, 0x52, 0x09, 0x74,
-	0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x4d, 0x73, 0x1a, 0x5e, 0x0a, 0x0e, 0x50, 0x72, 0x69, 0x6f,
+	0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x1a, 0x5e, 0x0a, 0x0e, 0x50, 0x72, 0x69, 0x6f,
 	0x72, 0x69, 0x74, 0x79, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x34, 0x0a, 0x04, 0x74, 0x79,
 	0x70, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x20, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
 	0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x4d, 0x61,
--- a/app/dns/config.proto
+++ b/app/dns/config.proto
@@ -28,9 +28,6 @@ message NameServer {
  repeated xray.app.router.GeoIP geoip = 3;
  repeated OriginalRule original_rules = 4;
  QueryStrategy query_strategy = 7;
-  bool allowUnexpectedIPs = 8;
-  string tag = 9;
-  uint64 timeoutMs = 10;
 }

 enum DomainMatchingType {
--- a/app/dns/dns.go
+++ b/app/dns/dns.go
@@ -4,7 +4,6 @@ package dns
 import (
 	"context"
 	"fmt"
-	"sort"
 	"strings"
 	"sync"

@@ -157,16 +156,16 @@ func (s *DNS) IsOwnLink(ctx context.Context) bool {
 }

 // LookupIP implements dns.Client.
-func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, error) {
+func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
 	if domain == "" {
-		return nil, 0, errors.New("empty domain name")
+		return nil, errors.New("empty domain name")
 	}

 	option.IPv4Enable = option.IPv4Enable && s.ipOption.IPv4Enable
 	option.IPv6Enable = option.IPv6Enable && s.ipOption.IPv6Enable

 	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, 0, dns.ErrEmptyResponse
+		return nil, dns.ErrEmptyResponse
 	}

 	// Normalize the FQDN form query
@@ -177,14 +176,13 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, er
 	case addrs == nil: // Domain not recorded in static host
 		break
 	case len(addrs) == 0: // Domain recorded, but no valid IP returned (e.g. IPv4 address with only IPv6 enabled)
-		return nil, 0, dns.ErrEmptyResponse
+		return nil, dns.ErrEmptyResponse
 	case len(addrs) == 1 && addrs[0].Family().IsDomain(): // Domain replacement
 		errors.LogInfo(s.ctx, "domain replaced: ", domain, " -> ", addrs[0].Domain())
 		domain = addrs[0].Domain()
 	default: // Successfully found ip records in static host
 		errors.LogInfo(s.ctx, "returning ", len(addrs), " IP(s) for domain ", domain, " -> ", addrs)
-		ips, err := toNetIP(addrs)
-		return ips, 10, err // Hosts ttl is 10
+		return toNetIP(addrs)
 	}

 	// Name servers lookup
@@ -195,9 +193,9 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, er
 			errors.LogDebug(s.ctx, "skip DNS resolution for domain ", domain, " at server ", client.Name())
 			continue
 		}
-		ips, ttl, err := client.QueryIP(ctx, domain, option, s.disableCache)
+		ips, err := client.QueryIP(ctx, domain, option, s.disableCache)
 		if len(ips) > 0 {
-			return ips, ttl, nil
+			return ips, nil
 		}
 		if err != nil {
 			errors.LogInfoInner(s.ctx, err, "failed to lookup ip for domain ", domain, " at server ", client.Name())
@@ -205,11 +203,11 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, er
 		}
 		// 5 for RcodeRefused in miekg/dns, hardcode to reduce binary size
 		if err != context.Canceled && err != context.DeadlineExceeded && err != errExpectedIPNonMatch && err != dns.ErrEmptyResponse && dns.RCodeFromError(err) != 5 {
-			return nil, 0, err
+			return nil, err
 		}
 	}

-	return nil, 0, errors.New("returning nil for domain ", domain).Base(errors.Combine(errs...))
+	return nil, errors.New("returning nil for domain ", domain).Base(errors.Combine(errs...))
 }

 // LookupHosts implements dns.HostsLookup.
@@ -252,11 +250,7 @@ func (s *DNS) sortClients(domain string) []*Client {

 	// Priority domain matching
 	hasMatch := false
-	MatchSlice := s.domainMatcher.Match(domain)
-	sort.Slice(MatchSlice, func(i, j int) bool {
-		return MatchSlice[i] < MatchSlice[j]
-	})
-	for _, match := range MatchSlice {
+	for _, match := range s.domainMatcher.Match(domain) {
 		info := s.matcherInfos[match]
 		client := s.clients[info.clientIdx]
 		domainRule := client.domains[info.domainRuleIdx]
--- a/app/dns/dns_test.go
+++ b/app/dns/dns_test.go
@@ -155,7 +155,7 @@ func TestUDPServerSubnet(t *testing.T) {

 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)

-	ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
+	ips, err := client.LookupIP("google.com", feature_dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 		FakeEnable: false,
@@ -216,7 +216,7 @@ func TestUDPServer(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)

 	{
-		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -231,7 +231,7 @@ func TestUDPServer(t *testing.T) {
 	}

 	{
-		ips, _, err := client.LookupIP("facebook.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("facebook.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -246,7 +246,7 @@ func TestUDPServer(t *testing.T) {
 	}

 	{
-		_, _, err := client.LookupIP("notexist.google.com", feature_dns.IPOption{
+		_, err := client.LookupIP("notexist.google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -260,7 +260,7 @@ func TestUDPServer(t *testing.T) {
 	}

 	{
-		ips, _, err := client.LookupIP("ipv4only.google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("ipv4only.google.com", feature_dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -276,7 +276,7 @@ func TestUDPServer(t *testing.T) {
 	dnsServer.Shutdown()

 	{
-		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -357,7 +357,7 @@ func TestPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()

 	{
-		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -423,7 +423,7 @@ func TestUDPServerIPv6(t *testing.T) {

 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 	{
-		ips, _, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -492,7 +492,7 @@ func TestStaticHostDomain(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)

 	{
-		ips, _, err := client.LookupIP("example.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("example.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -603,7 +603,7 @@ func TestIPMatch(t *testing.T) {
 	startTime := time.Now()

 	{
-		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -726,7 +726,7 @@ func TestLocalDomain(t *testing.T) {
 	startTime := time.Now()

 	{ // Will match dotless:
-		ips, _, err := client.LookupIP("hostname", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostname", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -741,7 +741,7 @@ func TestLocalDomain(t *testing.T) {
 	}

 	{ // Will match domain:local
-		ips, _, err := client.LookupIP("hostname.local", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostname.local", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -756,7 +756,7 @@ func TestLocalDomain(t *testing.T) {
 	}

 	{ // Will match static ip
-		ips, _, err := client.LookupIP("hostnamestatic", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostnamestatic", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -771,7 +771,7 @@ func TestLocalDomain(t *testing.T) {
 	}

 	{ // Will match domain replacing
-		ips, _, err := client.LookupIP("hostnamealias", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostnamealias", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -785,8 +785,8 @@ func TestLocalDomain(t *testing.T) {
 		}
 	}

-	{ // Will match dotless:localhost, but not expectedIPs: 127.0.0.2, 127.0.0.3, then matches at dotless:
-		ips, _, err := client.LookupIP("localhost", feature_dns.IPOption{
+	{ // Will match dotless:localhost, but not expectIPs: 127.0.0.2, 127.0.0.3, then matches at dotless:
+		ips, err := client.LookupIP("localhost", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -800,8 +800,8 @@ func TestLocalDomain(t *testing.T) {
 		}
 	}

-	{ // Will match dotless:localhost, and expectedIPs: 127.0.0.2, 127.0.0.3
-		ips, _, err := client.LookupIP("localhost-a", feature_dns.IPOption{
+	{ // Will match dotless:localhost, and expectIPs: 127.0.0.2, 127.0.0.3
+		ips, err := client.LookupIP("localhost-a", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -815,8 +815,8 @@ func TestLocalDomain(t *testing.T) {
 		}
 	}

-	{ // Will match dotless:localhost, and expectedIPs: 127.0.0.2, 127.0.0.3
-		ips, _, err := client.LookupIP("localhost-b", feature_dns.IPOption{
+	{ // Will match dotless:localhost, and expectIPs: 127.0.0.2, 127.0.0.3
+		ips, err := client.LookupIP("localhost-b", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -831,7 +831,7 @@ func TestLocalDomain(t *testing.T) {
 	}

 	{ // Will match dotless:
-		ips, _, err := client.LookupIP("Mijia Cloud", feature_dns.IPOption{
+		ips, err := client.LookupIP("Mijia Cloud", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -997,7 +997,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()

 	{ // Will match server 1,2 and server 1 returns expected ip
-		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -1012,7 +1012,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}

 	{ // Will match server 1,2 and server 1 returns unexpected ip, then server 2 returns expected one
-		ips, _, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 			FakeEnable: false,
@@ -1027,7 +1027,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}

 	{ // Will match server 3,1,2 and server 3 returns expected one
-		ips, _, err := client.LookupIP("api.google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("api.google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -1042,7 +1042,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}

 	{ // Will match server 4,3,1,2 and server 4 returns expected one
-		ips, _, err := client.LookupIP("v2.api.google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("v2.api.google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
--- a/app/dns/dnscommon.go
+++ b/app/dns/dnscommon.go
@@ -31,22 +31,20 @@ type record struct {

 // IPRecord is a cacheable item for a resolved domain
 type IPRecord struct {
-	ReqID     uint16
-	IP        []net.Address
-	Expire    time.Time
-	RCode     dnsmessage.RCode
-	RawHeader *dnsmessage.Header
+	ReqID  uint16
+	IP     []net.Address
+	Expire time.Time
+	RCode  dnsmessage.RCode
 }

-func (r *IPRecord) getIPs() ([]net.Address, uint32, error) {
+func (r *IPRecord) getIPs() ([]net.Address, error) {
 	if r == nil || r.Expire.Before(time.Now()) {
-		return nil, 0, errRecordNotFound
+		return nil, errRecordNotFound
 	}
 	if r.RCode != dnsmessage.RCodeSuccess {
-		return nil, 0, dns_feature.RCodeError(r.RCode)
+		return nil, dns_feature.RCodeError(r.RCode)
 	}
-	ttl := uint32(time.Until(r.Expire) / time.Second)
-	return r.IP, ttl, nil
+	return r.IP, nil
 }

 func isNewer(baseRec *IPRecord, newRec *IPRecord) bool {
@@ -69,59 +67,49 @@ type dnsRequest struct {
 	msg     *dnsmessage.Message
 }

-func genEDNS0Options(clientIP net.IP, padding int) *dnsmessage.Resource {
-	if len(clientIP) == 0 && padding == 0 {
+func genEDNS0Options(clientIP net.IP) *dnsmessage.Resource {
+	if len(clientIP) == 0 {
 		return nil
 	}

-	const EDNS0SUBNET = 0x8
-	const EDNS0PADDING = 0xc
+	var netmask int
+	var family uint16
+
+	if len(clientIP) == 4 {
+		family = 1
+		netmask = 24 // 24 for IPV4, 96 for IPv6
+	} else {
+		family = 2
+		netmask = 96
+	}
+
+	b := make([]byte, 4)
+	binary.BigEndian.PutUint16(b[0:], family)
+	b[2] = byte(netmask)
+	b[3] = 0
+	switch family {
+	case 1:
+		ip := clientIP.To4().Mask(net.CIDRMask(netmask, net.IPv4len*8))
+		needLength := (netmask + 8 - 1) / 8 // division rounding up
+		b = append(b, ip[:needLength]...)
+	case 2:
+		ip := clientIP.Mask(net.CIDRMask(netmask, net.IPv6len*8))
+		needLength := (netmask + 8 - 1) / 8 // division rounding up
+		b = append(b, ip[:needLength]...)
+	}
+
+	const EDNS0SUBNET = 0x08

 	opt := new(dnsmessage.Resource)
 	common.Must(opt.Header.SetEDNS0(1350, 0xfe00, true))
-	body := dnsmessage.OPTResource{}
-	opt.Body = &body

-	if len(clientIP) != 0 {
-		var netmask int
-		var family uint16
-
-		if len(clientIP) == 4 {
-			family = 1
-			netmask = 24 // 24 for IPV4, 96 for IPv6
-		} else {
-			family = 2
-			netmask = 96
-		}
-
-		b := make([]byte, 4)
-		binary.BigEndian.PutUint16(b[0:], family)
-		b[2] = byte(netmask)
-		b[3] = 0
-		switch family {
-		case 1:
-			ip := clientIP.To4().Mask(net.CIDRMask(netmask, net.IPv4len*8))
-			needLength := (netmask + 8 - 1) / 8 // division rounding up
-			b = append(b, ip[:needLength]...)
-		case 2:
-			ip := clientIP.Mask(net.CIDRMask(netmask, net.IPv6len*8))
-			needLength := (netmask + 8 - 1) / 8 // division rounding up
-			b = append(b, ip[:needLength]...)
-		}
-
-		body.Options = append(body.Options,
-			dnsmessage.Option{
+	opt.Body = &dnsmessage.OPTResource{
+		Options: []dnsmessage.Option{
+			{
 				Code: EDNS0SUBNET,
 				Data: b,
-			})
-	}
-
-	if padding != 0 {
-		body.Options = append(body.Options,
-			dnsmessage.Option{
-				Code: EDNS0PADDING,
-				Data: make([]byte, padding),
-			})
+			},
+		},
 	}

 	return opt
@@ -191,10 +179,9 @@ func parseResponse(payload []byte) (*IPRecord, error) {

 	now := time.Now()
 	ipRecord := &IPRecord{
-		ReqID:     h.ID,
-		RCode:     h.RCode,
-		Expire:    now.Add(time.Second * 600),
-		RawHeader: &h,
+		ReqID:  h.ID,
+		RCode:  h.RCode,
+		Expire: now.Add(time.Second * 600),
 	}

 L:
--- a/app/dns/dnscommon_test.go
+++ b/app/dns/dnscommon_test.go
@@ -51,7 +51,7 @@ func Test_parseResponse(t *testing.T) {
 	}{
 		{
 			"empty",
-			&IPRecord{0, []net.Address(nil), time.Time{}, dnsmessage.RCodeSuccess, nil},
+			&IPRecord{0, []net.Address(nil), time.Time{}, dnsmessage.RCodeSuccess},
 			false,
 		},
 		{
@@ -66,13 +66,12 @@ func Test_parseResponse(t *testing.T) {
 				[]net.Address{net.ParseAddress("8.8.8.8"), net.ParseAddress("8.8.4.4")},
 				time.Time{},
 				dnsmessage.RCodeSuccess,
-				nil,
 			},
 			false,
 		},
 		{
 			"aaaa record",
-			&IPRecord{2, []net.Address{net.ParseAddress("2001::123:8888"), net.ParseAddress("2001::123:8844")}, time.Time{}, dnsmessage.RCodeSuccess, nil},
+			&IPRecord{2, []net.Address{net.ParseAddress("2001::123:8888"), net.ParseAddress("2001::123:8844")}, time.Time{}, dnsmessage.RCodeSuccess},
 			false,
 		},
 	}
@@ -85,12 +84,11 @@ func Test_parseResponse(t *testing.T) {
 			}

 			if got != nil {
-				// reset the time and RawHeader
+				// reset the time
 				got.Expire = time.Time{}
-				got.RawHeader = nil
 			}
 			if cmp.Diff(got, tt.want) != "" {
-				t.Error(cmp.Diff(got, tt.want))
+				t.Errorf(cmp.Diff(got, tt.want))
 				// t.Errorf("handleResponse() = %#v, want %#v", got, tt.want)
 			}
 		})
@@ -156,7 +154,7 @@ func Test_genEDNS0Options(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if got := genEDNS0Options(tt.args.clientIP, 0); got == nil {
+			if got := genEDNS0Options(tt.args.clientIP); got == nil {
 				t.Errorf("genEDNS0Options() = %v, want %v", got, tt.want)
 			}
 		})
--- a/app/dns/nameserver.go
+++ b/app/dns/nameserver.go
@@ -9,7 +9,6 @@ import (
 	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/dns"
@@ -21,25 +20,22 @@ type Server interface {
 	// Name of the Client.
 	Name() string
 	// QueryIP sends IP queries to its configured server.
-	QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns.IPOption, disableCache bool) ([]net.IP, uint32, error)
+	QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns.IPOption, disableCache bool) ([]net.IP, error)
 }

 // Client is the interface for DNS client.
 type Client struct {
-	server             Server
-	clientIP           net.IP
-	skipFallback       bool
-	domains            []string
-	expectedIPs        []*router.GeoIPMatcher
-	allowUnexpectedIPs bool
-	tag                string
-	timeoutMs          time.Duration
+	server       Server
+	clientIP     net.IP
+	skipFallback bool
+	domains      []string
+	expectIPs    []*router.GeoIPMatcher
 }

-var errExpectedIPNonMatch = errors.New("expectedIPs not match")
+var errExpectedIPNonMatch = errors.New("expectIPs not match")

 // NewServer creates a name server object according to the network destination url.
-func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) (Server, error) {
+func NewServer(dest net.Destination, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) (Server, error) {
 	if address := dest.Address; address.Family().IsDomain() {
 		u, err := url.Parse(address.Domain())
 		if err != nil {
@@ -47,15 +43,11 @@ func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dis
 		}
 		switch {
 		case strings.EqualFold(u.String(), "localhost"):
-			return NewLocalNameServer(queryStrategy), nil
-		case strings.EqualFold(u.Scheme, "https"): // DNS-over-HTTPS Remote mode
-			return NewDoHNameServer(u, queryStrategy, dispatcher, false), nil
-		case strings.EqualFold(u.Scheme, "h2c"): // DNS-over-HTTPS h2c Remote mode
-			return NewDoHNameServer(u, queryStrategy, dispatcher, true), nil
-		case strings.EqualFold(u.Scheme, "https+local"): // DNS-over-HTTPS Local mode
-			return NewDoHNameServer(u, queryStrategy, nil, false), nil
-		case strings.EqualFold(u.Scheme, "h2c+local"): // DNS-over-HTTPS h2c Local mode
-			return NewDoHNameServer(u, queryStrategy, nil, true), nil
+			return NewLocalNameServer(), nil
+		case strings.EqualFold(u.Scheme, "https"): // DOH Remote mode
+			return NewDoHNameServer(u, dispatcher, queryStrategy)
+		case strings.EqualFold(u.Scheme, "https+local"): // DOH Local mode
+			return NewDoHLocalNameServer(u, queryStrategy), nil
 		case strings.EqualFold(u.Scheme, "quic+local"): // DNS-over-QUIC Local mode
 			return NewQUICNameServer(u, queryStrategy)
 		case strings.EqualFold(u.Scheme, "tcp"): // DNS-over-TCP Remote mode
@@ -63,11 +55,7 @@ func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dis
 		case strings.EqualFold(u.Scheme, "tcp+local"): // DNS-over-TCP Local mode
 			return NewTCPLocalNameServer(u, queryStrategy)
 		case strings.EqualFold(u.String(), "fakedns"):
-			var fd dns.FakeDNSEngine
-			core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) {
-				fd = fdns
-			})
-			return NewFakeDNSServer(fd), nil
+			return NewFakeDNSServer(), nil
 		}
 	}
 	if dest.Network == net.Network_Unknown {
@@ -92,7 +80,7 @@ func NewClient(

 	err := core.RequireFeatures(ctx, func(dispatcher routing.Dispatcher) error {
 		// Create a new server for each client for now
-		server, err := NewServer(ctx, ns.Address.AsDestination(), dispatcher, ns.GetQueryStrategy())
+		server, err := NewServer(ns.Address.AsDestination(), dispatcher, ns.GetQueryStrategy())
 		if err != nil {
 			return errors.New("failed to create nameserver").Base(err).AtWarning()
 		}
@@ -165,19 +153,11 @@ func NewClient(
 			}
 		}

-		var timeoutMs = 4000 * time.Millisecond
-		if ns.TimeoutMs > 0 {
-			timeoutMs = time.Duration(ns.TimeoutMs) * time.Millisecond
-		}
-		
 		client.server = server
 		client.clientIP = clientIP
 		client.skipFallback = ns.SkipFallback
 		client.domains = rules
-		client.expectedIPs = matchers
-		client.allowUnexpectedIPs = ns.AllowUnexpectedIPs
-		client.tag = ns.Tag
-		client.timeoutMs = timeoutMs
+		client.expectIPs = matchers
 		return nil
 	})
 	return client, err
@@ -189,33 +169,25 @@ func (c *Client) Name() string {
 }

 // QueryIP sends DNS query to the name server with the client's IP.
-func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption, disableCache bool) ([]net.IP, uint32, error) {
-	ctx, cancel := context.WithTimeout(ctx, c.timeoutMs)
-	if len(c.tag) != 0 {
-		content := session.InboundFromContext(ctx)
-		errors.LogDebug(ctx, "DNS: client override tag from ", content.Tag, " to ", c.tag)
-		// create a new context to override the tag
-		// do not direct set *content.Tag, it might be used by other clients
-		ctx = session.ContextWithInbound(ctx, &session.Inbound{Tag: c.tag})
-	}
-	ips, ttl, err := c.server.QueryIP(ctx, domain, c.clientIP, option, disableCache)
+func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption, disableCache bool) ([]net.IP, error) {
+	ctx, cancel := context.WithTimeout(ctx, 4*time.Second)
+	ips, err := c.server.QueryIP(ctx, domain, c.clientIP, option, disableCache)
 	cancel()

 	if err != nil {
-		return ips, ttl, err
+		return ips, err
 	}
-	netips, err := c.MatchExpectedIPs(domain, ips)
-	return netips, ttl, err
+	return c.MatchExpectedIPs(domain, ips)
 }

 // MatchExpectedIPs matches queried domain IPs with expected IPs and returns matched ones.
 func (c *Client) MatchExpectedIPs(domain string, ips []net.IP) ([]net.IP, error) {
-	if len(c.expectedIPs) == 0 {
+	if len(c.expectIPs) == 0 {
 		return ips, nil
 	}
 	newIps := []net.IP{}
 	for _, ip := range ips {
-		for _, matcher := range c.expectedIPs {
+		for _, matcher := range c.expectIPs {
 			if matcher.Match(ip) {
 				newIps = append(newIps, ip)
 				break
@@ -223,12 +195,9 @@ func (c *Client) MatchExpectedIPs(domain string, ips []net.IP) ([]net.IP, error)
 		}
 	}
 	if len(newIps) == 0 {
-		if c.allowUnexpectedIPs {
-			return ips, nil
-		}
 		return nil, errExpectedIPNonMatch
 	}
-	errors.LogDebug(context.Background(), "domain ", domain, " expectedIPs ", newIps, " matched at server ", c.Name())
+	errors.LogDebug(context.Background(), "domain ", domain, " expectIPs ", newIps, " matched at server ", c.Name())
 	return newIps, nil
 }

--- a/app/dns/nameserver_doh.go
+++ b/app/dns/nameserver_doh.go
@@ -3,18 +3,15 @@ package dns
 import (
 	"bytes"
 	"context"
-	"crypto/tls"
 	"fmt"
 	"io"
 	"net/http"
 	"net/url"
-	"strings"
 	"sync"
+	"sync/atomic"
 	"time"

-	utls "github.com/refraction-networking/utls"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/crypto"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
@@ -27,35 +24,111 @@ import (
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet"
 	"golang.org/x/net/dns/dnsmessage"
-	"golang.org/x/net/http2"
 )

 // DoHNameServer implemented DNS over HTTPS (RFC8484) Wire Format,
 // which is compatible with traditional dns over udp(RFC1035),
 // thus most of the DOH implementation is copied from udpns.go
 type DoHNameServer struct {
+	dispatcher routing.Dispatcher
 	sync.RWMutex
 	ips           map[string]*record
 	pub           *pubsub.Service
 	cleanup       *task.Periodic
+	reqID         uint32
 	httpClient    *http.Client
 	dohURL        string
 	name          string
 	queryStrategy QueryStrategy
 }

-// NewDoHNameServer creates DOH/DOHL client object for remote/local resolving.
-func NewDoHNameServer(url *url.URL, queryStrategy QueryStrategy, dispatcher routing.Dispatcher, h2c bool) *DoHNameServer {
-	url.Scheme = "https"
-	mode := "DOH"
-	if dispatcher == nil {
-		mode = "DOHL"
+// NewDoHNameServer creates DOH server object for remote resolving.
+func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) (*DoHNameServer, error) {
+	errors.LogInfo(context.Background(), "DNS: created Remote DOH client for ", url.String())
+	s := baseDOHNameServer(url, "DOH", queryStrategy)
+
+	s.dispatcher = dispatcher
+	tr := &http.Transport{
+		MaxIdleConns:        30,
+		IdleConnTimeout:     90 * time.Second,
+		TLSHandshakeTimeout: 30 * time.Second,
+		ForceAttemptHTTP2:   true,
+		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
+			dest, err := net.ParseDestination(network + ":" + addr)
+			if err != nil {
+				return nil, err
+			}
+			link, err := s.dispatcher.Dispatch(toDnsContext(ctx, s.dohURL), dest)
+			select {
+			case <-ctx.Done():
+				return nil, ctx.Err()
+			default:
+
+			}
+			if err != nil {
+				return nil, err
+			}
+
+			cc := common.ChainedClosable{}
+			if cw, ok := link.Writer.(common.Closable); ok {
+				cc = append(cc, cw)
+			}
+			if cr, ok := link.Reader.(common.Closable); ok {
+				cc = append(cc, cr)
+			}
+			return cnc.NewConnection(
+				cnc.ConnectionInputMulti(link.Writer),
+				cnc.ConnectionOutputMulti(link.Reader),
+				cnc.ConnectionOnClose(cc),
+			), nil
+		},
 	}
-	errors.LogInfo(context.Background(), "DNS: created ", mode, " client for ", url.String(), ", with h2c ", h2c)
+	s.httpClient = &http.Client{
+		Timeout:   time.Second * 180,
+		Transport: tr,
+	}
+
+	return s, nil
+}
+
+// NewDoHLocalNameServer creates DOH client object for local resolving
+func NewDoHLocalNameServer(url *url.URL, queryStrategy QueryStrategy) *DoHNameServer {
+	url.Scheme = "https"
+	s := baseDOHNameServer(url, "DOHL", queryStrategy)
+	tr := &http.Transport{
+		IdleConnTimeout:   90 * time.Second,
+		ForceAttemptHTTP2: true,
+		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
+			dest, err := net.ParseDestination(network + ":" + addr)
+			if err != nil {
+				return nil, err
+			}
+			conn, err := internet.DialSystem(ctx, dest, nil)
+			log.Record(&log.AccessMessage{
+				From:   "DNS",
+				To:     s.dohURL,
+				Status: log.AccessAccepted,
+				Detour: "local",
+			})
+			if err != nil {
+				return nil, err
+			}
+			return conn, nil
+		},
+	}
+	s.httpClient = &http.Client{
+		Timeout:   time.Second * 180,
+		Transport: tr,
+	}
+	errors.LogInfo(context.Background(), "DNS: created Local DOH client for ", url.String())
+	return s
+}
+
+func baseDOHNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy) *DoHNameServer {
 	s := &DoHNameServer{
 		ips:           make(map[string]*record),
 		pub:           pubsub.NewService(),
-		name:          mode + "//" + url.Host,
+		name:          prefix + "//" + url.Host,
 		dohURL:        url.String(),
 		queryStrategy: queryStrategy,
 	}
@@ -63,65 +136,6 @@ func NewDoHNameServer(url *url.URL, queryStrategy QueryStrategy, dispatcher rout
 		Interval: time.Minute,
 		Execute:  s.Cleanup,
 	}
-	s.httpClient = &http.Client{
-		Transport: &http2.Transport{
-			IdleConnTimeout: net.ConnIdleTimeout,
-			ReadIdleTimeout: net.ChromeH2KeepAlivePeriod,
-			DialTLSContext: func(ctx context.Context, network, addr string, cfg *tls.Config) (net.Conn, error) {
-				dest, err := net.ParseDestination(network + ":" + addr)
-				if err != nil {
-					return nil, err
-				}
-				var conn net.Conn
-				if dispatcher != nil {
-					dnsCtx := toDnsContext(ctx, s.dohURL)
-					if h2c {
-						dnsCtx = session.ContextWithMitmAlpn11(dnsCtx, false) // for insurance
-						dnsCtx = session.ContextWithMitmServerName(dnsCtx, url.Hostname())
-					}
-					link, err := dispatcher.Dispatch(dnsCtx, dest)
-					select {
-					case <-ctx.Done():
-						return nil, ctx.Err()
-					default:
-					}
-					if err != nil {
-						return nil, err
-					}
-					cc := common.ChainedClosable{}
-					if cw, ok := link.Writer.(common.Closable); ok {
-						cc = append(cc, cw)
-					}
-					if cr, ok := link.Reader.(common.Closable); ok {
-						cc = append(cc, cr)
-					}
-					conn = cnc.NewConnection(
-						cnc.ConnectionInputMulti(link.Writer),
-						cnc.ConnectionOutputMulti(link.Reader),
-						cnc.ConnectionOnClose(cc),
-					)
-				} else {
-					log.Record(&log.AccessMessage{
-						From:   "DNS",
-						To:     s.dohURL,
-						Status: log.AccessAccepted,
-						Detour: "local",
-					})
-					conn, err = internet.DialSystem(ctx, dest, nil)
-					if err != nil {
-						return nil, err
-					}
-				}
-				if !h2c {
-					conn = utls.UClient(conn, &utls.Config{ServerName: url.Hostname()}, utls.HelloChrome_Auto)
-					if err := conn.(*utls.UConn).HandshakeContext(ctx); err != nil {
-						return nil, err
-					}
-				}
-				return conn, nil
-			},
-		},
-	}
 	return s
 }

@@ -208,7 +222,7 @@ func (s *DoHNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 }

 func (s *DoHNameServer) newReqID() uint16 {
-	return 0
+	return uint16(atomic.AddUint32(&s.reqID, 1))
 }

 func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
@@ -219,9 +233,7 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 		return
 	}

-	// As we don't want our traffic pattern looks like DoH, we use Random-Length Padding instead of Block-Length Padding recommended in RFC 8467
-	// Although DoH server like 1.1.1.1 will pad the response to Block-Length 468, at least it is better than no padding for response at all
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP, int(crypto.RandBetween(100, 300))))
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))

 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -283,8 +295,6 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 	req.Header.Add("Accept", "application/dns-message")
 	req.Header.Add("Content-Type", "application/dns-message")

-	req.Header.Set("X-Padding", strings.Repeat("X", int(crypto.RandBetween(100, 1000))))
-
 	hc := s.httpClient

 	resp, err := hc.Do(req.WithContext(ctx))
@@ -301,66 +311,64 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 	return io.ReadAll(resp.Body)
 }

-func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
+func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
 	s.RLock()
 	record, found := s.ips[domain]
 	s.RUnlock()

 	if !found {
-		return nil, 0, errRecordNotFound
+		return nil, errRecordNotFound
 	}

 	var err4 error
 	var err6 error
 	var ips []net.Address
 	var ip6 []net.Address
-	var ttl uint32

 	if option.IPv4Enable {
-		ips, ttl, err4 = record.A.getIPs()
+		ips, err4 = record.A.getIPs()
 	}

 	if option.IPv6Enable {
-		ip6, ttl, err6 = record.AAAA.getIPs()
+		ip6, err6 = record.AAAA.getIPs()
 		ips = append(ips, ip6...)
 	}

 	if len(ips) > 0 {
-		netips, err := toNetIP(ips)
-		return netips, ttl, err
+		return toNetIP(ips)
 	}

 	if err4 != nil {
-		return nil, 0, err4
+		return nil, err4
 	}

 	if err6 != nil {
-		return nil, 0, err6
+		return nil, err6
 	}

 	if (option.IPv4Enable && record.A != nil) || (option.IPv6Enable && record.AAAA != nil) {
-		return nil, 0, dns_feature.ErrEmptyResponse
+		return nil, dns_feature.ErrEmptyResponse
 	}

-	return nil, 0, errRecordNotFound
+	return nil, errRecordNotFound
 }

 // QueryIP implements Server.
-func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, uint32, error) { // nolint: dupl
+func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) { // nolint: dupl
 	fqdn := Fqdn(domain)
 	option = ResolveIpOptionOverride(s.queryStrategy, option)
 	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, 0, dns_feature.ErrEmptyResponse
+		return nil, dns_feature.ErrEmptyResponse
 	}

 	if disableCache {
 		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
 	} else {
-		ips, ttl, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse || dns_feature.RCodeFromError(err) == 3 {
+		ips, err := s.findIPsForDomain(fqdn, option)
+		if err == nil || err == dns_feature.ErrEmptyResponse {
 			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
 			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
-			return ips, ttl, err
+			return ips, err
 		}
 	}

@@ -394,15 +402,15 @@ func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net
 	start := time.Now()

 	for {
-		ips, ttl, err := s.findIPsForDomain(fqdn, option)
+		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
 			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
-			return ips, ttl, err
+			return ips, err
 		}

 		select {
 		case <-ctx.Done():
-			return nil, 0, ctx.Err()
+			return nil, ctx.Err()
 		case <-done:
 		}
 	}
--- a/app/dns/nameserver_doh_test.go
+++ b/app/dns/nameserver_doh_test.go
@@ -17,9 +17,9 @@ func TestDOHNameServer(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)

-	s := NewDoHNameServer(url, QueryStrategy_USE_IP, nil, false)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
@@ -34,9 +34,9 @@ func TestDOHNameServerWithCache(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)

-	s := NewDoHNameServer(url, QueryStrategy_USE_IP, nil, false)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
@@ -47,7 +47,7 @@ func TestDOHNameServerWithCache(t *testing.T) {
 	}

 	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips2, _, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, true)
@@ -62,9 +62,9 @@ func TestDOHNameServerWithIPv4Override(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)

-	s := NewDoHNameServer(url, QueryStrategy_USE_IP4, nil, false)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP4)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
@@ -85,9 +85,9 @@ func TestDOHNameServerWithIPv6Override(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)

-	s := NewDoHNameServer(url, QueryStrategy_USE_IP6, nil, false)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP6)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
--- a/app/dns/nameserver_fakedns.go
+++ b/app/dns/nameserver_fakedns.go
@@ -5,6 +5,7 @@ import (

 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/dns"
 )

@@ -12,19 +13,22 @@ type FakeDNSServer struct {
 	fakeDNSEngine dns.FakeDNSEngine
 }

-func NewFakeDNSServer(fd dns.FakeDNSEngine) *FakeDNSServer {
-	return &FakeDNSServer{fakeDNSEngine: fd}
+func NewFakeDNSServer() *FakeDNSServer {
+	return &FakeDNSServer{}
 }

 func (FakeDNSServer) Name() string {
 	return "FakeDNS"
 }

-func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, opt dns.IPOption, _ bool) ([]net.IP, uint32, error) {
+func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, opt dns.IPOption, _ bool) ([]net.IP, error) {
 	if f.fakeDNSEngine == nil {
-		return nil, 0, errors.New("Unable to locate a fake DNS Engine").AtError()
+		if err := core.RequireFeatures(ctx, func(fd dns.FakeDNSEngine) {
+			f.fakeDNSEngine = fd
+		}); err != nil {
+			return nil, errors.New("Unable to locate a fake DNS Engine").Base(err).AtError()
+		}
 	}
-
 	var ips []net.Address
 	if fkr0, ok := f.fakeDNSEngine.(dns.FakeDNSEngineRev0); ok {
 		ips = fkr0.GetFakeIPForDomain3(domain, opt.IPv4Enable, opt.IPv6Enable)
@@ -34,13 +38,13 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, op

 	netIP, err := toNetIP(ips)
 	if err != nil {
-		return nil, 0, errors.New("Unable to convert IP to net ip").Base(err).AtError()
+		return nil, errors.New("Unable to convert IP to net ip").Base(err).AtError()
 	}

 	errors.LogInfo(ctx, f.Name(), " got answer: ", domain, " -> ", ips)

 	if len(netIP) > 0 {
-		return netIP, 1, nil // fakeIP ttl is 1
+		return netIP, nil
 	}
-	return nil, 0, dns.ErrEmptyResponse
+	return nil, dns.ErrEmptyResponse
 }
--- a/app/dns/nameserver_local.go
+++ b/app/dns/nameserver_local.go
@@ -14,21 +14,15 @@ import (

 // LocalNameServer is an wrapper over local DNS feature.
 type LocalNameServer struct {
-	client        *localdns.Client
-	queryStrategy QueryStrategy
+	client *localdns.Client
 }

 const errEmptyResponse = "No address associated with hostname"

 // QueryIP implements Server.
-func (s *LocalNameServer) QueryIP(ctx context.Context, domain string, _ net.IP, option dns.IPOption, _ bool) (ips []net.IP, ttl uint32, err error) {
-	option = ResolveIpOptionOverride(s.queryStrategy, option)
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, 0, dns.ErrEmptyResponse
-	}
-
+func (s *LocalNameServer) QueryIP(ctx context.Context, domain string, _ net.IP, option dns.IPOption, _ bool) (ips []net.IP, err error) {
 	start := time.Now()
-	ips, ttl, err = s.client.LookupIP(domain, option)
+	ips, err = s.client.LookupIP(domain, option)

 	if err != nil && strings.HasSuffix(err.Error(), errEmptyResponse) {
 		err = dns.ErrEmptyResponse
@@ -48,15 +42,14 @@ func (s *LocalNameServer) Name() string {
 }

 // NewLocalNameServer creates localdns server object for directly lookup in system DNS.
-func NewLocalNameServer(queryStrategy QueryStrategy) *LocalNameServer {
+func NewLocalNameServer() *LocalNameServer {
 	errors.LogInfo(context.Background(), "DNS: created localhost client")
 	return &LocalNameServer{
-		queryStrategy: queryStrategy,
-		client:        localdns.New(),
+		client: localdns.New(),
 	}
 }

 // NewLocalDNSClient creates localdns client object for directly lookup in system DNS.
 func NewLocalDNSClient() *Client {
-	return &Client{server: NewLocalNameServer(QueryStrategy_USE_IP)}
+	return &Client{server: NewLocalNameServer()}
 }
--- a/app/dns/nameserver_local_test.go
+++ b/app/dns/nameserver_local_test.go
@@ -12,9 +12,9 @@ import (
 )

 func TestLocalNameServer(t *testing.T) {
-	s := NewLocalNameServer(QueryStrategy_USE_IP)
+	s := NewLocalNameServer()
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP{}, dns.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP{}, dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 		FakeEnable: false,
--- a/app/dns/nameserver_quic.go
+++ b/app/dns/nameserver_quic.go
@@ -6,9 +6,10 @@ import (
 	"encoding/binary"
 	"net/url"
 	"sync"
+	"sync/atomic"
 	"time"

-	"github.com/quic-go/quic-go"
+	"github.com/refraction-networking/uquic"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
@@ -36,6 +37,7 @@ type QUICNameServer struct {
 	ips           map[string]*record
 	pub           *pubsub.Service
 	cleanup       *task.Periodic
+	reqID         uint32
 	name          string
 	destination   *net.Destination
 	connection    quic.Connection
@@ -154,13 +156,13 @@ func (s *QUICNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 }

 func (s *QUICNameServer) newReqID() uint16 {
-	return 0
+	return uint16(atomic.AddUint32(&s.reqID, 1))
 }

 func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
 	errors.LogInfo(ctx, s.name, " querying: ", domain)

-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP, 0))
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))

 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -244,66 +246,64 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP
 	}
 }

-func (s *QUICNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
+func (s *QUICNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
 	s.RLock()
 	record, found := s.ips[domain]
 	s.RUnlock()

 	if !found {
-		return nil, 0, errRecordNotFound
+		return nil, errRecordNotFound
 	}

 	var err4 error
 	var err6 error
 	var ips []net.Address
 	var ip6 []net.Address
-	var ttl uint32

 	if option.IPv4Enable {
-		ips, ttl, err4 = record.A.getIPs()
+		ips, err4 = record.A.getIPs()
 	}

 	if option.IPv6Enable {
-		ip6, ttl, err6 = record.AAAA.getIPs()
+		ip6, err6 = record.AAAA.getIPs()
 		ips = append(ips, ip6...)
 	}

 	if len(ips) > 0 {
-		netips, err := toNetIP(ips)
-		return netips, ttl, err
+		return toNetIP(ips)
 	}

 	if err4 != nil {
-		return nil, 0, err4
+		return nil, err4
 	}

 	if err6 != nil {
-		return nil, 0, err6
+		return nil, err6
 	}

 	if (option.IPv4Enable && record.A != nil) || (option.IPv6Enable && record.AAAA != nil) {
-		return nil, 0, dns_feature.ErrEmptyResponse
+		return nil, dns_feature.ErrEmptyResponse
 	}

-	return nil, 0, errRecordNotFound
+	return nil, errRecordNotFound
 }

 // QueryIP is called from dns.Server->queryIPTimeout
-func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, uint32, error) {
+func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
 	option = ResolveIpOptionOverride(s.queryStrategy, option)
 	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, 0, dns_feature.ErrEmptyResponse
+		return nil, dns_feature.ErrEmptyResponse
 	}

 	if disableCache {
 		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
 	} else {
-		ips, ttl, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse || dns_feature.RCodeFromError(err) == 3 {
+		ips, err := s.findIPsForDomain(fqdn, option)
+		if err == nil || err == dns_feature.ErrEmptyResponse {
 			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
 			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
-			return ips, ttl, err
+			return ips, err
 		}
 	}

@@ -337,15 +337,15 @@ func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP ne
 	start := time.Now()

 	for {
-		ips, ttl, err := s.findIPsForDomain(fqdn, option)
+		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
 			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
-			return ips, ttl, err
+			return ips, err
 		}

 		select {
 		case <-ctx.Done():
-			return nil, 0, ctx.Err()
+			return nil, ctx.Err()
 		case <-done:
 		}
 	}
@@ -400,7 +400,9 @@ func (s *QUICNameServer) openConnection() (quic.Connection, error) {
 		HandshakeIdleTimeout: handshakeTimeout,
 	}
 	tlsConfig.ServerName = s.destination.Address.String()
-	conn, err := quic.DialAddr(context.Background(), s.destination.NetAddr(), tlsConfig.GetTLSConfig(tls.WithNextProto("http/1.1", http2.NextProtoTLS, NextProtoDQ)), quicConfig)
+	utlsConf := tls.CopyConfig(tlsConfig.GetTLSConfig())
+	utlsConf.NextProtos = []string{ "http/1.1", http2.NextProtoTLS, NextProtoDQ }
+	conn, err := quic.DialAddr(context.Background(), s.destination.NetAddr(), utlsConf, quicConfig)
 	log.Record(&log.AccessMessage{
 		From:   "DNS",
 		To:     s.destination,
--- a/app/dns/nameserver_quic_test.go
+++ b/app/dns/nameserver_quic_test.go
@@ -14,12 +14,12 @@ import (
 )

 func TestQUICNameServer(t *testing.T) {
-	url, err := url.Parse("quic://dns.adguard-dns.com")
+	url, err := url.Parse("quic://dns.adguard.com")
 	common.Must(err)
 	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP)
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
@@ -30,7 +30,7 @@ func TestQUICNameServer(t *testing.T) {
 	}

 	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips2, _, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns.IPOption{
+	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, true)
@@ -42,12 +42,12 @@ func TestQUICNameServer(t *testing.T) {
 }

 func TestQUICNameServerWithIPv4Override(t *testing.T) {
-	url, err := url.Parse("quic://dns.adguard-dns.com")
+	url, err := url.Parse("quic://dns.adguard.com")
 	common.Must(err)
 	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP4)
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
@@ -65,12 +65,12 @@ func TestQUICNameServerWithIPv4Override(t *testing.T) {
 }

 func TestQUICNameServerWithIPv6Override(t *testing.T) {
-	url, err := url.Parse("quic://dns.adguard-dns.com")
+	url, err := url.Parse("quic://dns.adguard.com")
 	common.Must(err)
 	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP6)
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
--- a/app/dns/nameserver_tcp.go
+++ b/app/dns/nameserver_tcp.go
@@ -192,7 +192,7 @@ func (s *TCPNameServer) newReqID() uint16 {
 func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
 	errors.LogDebug(ctx, s.name, " querying DNS for: ", domain)

-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP, 0))
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))

 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -273,62 +273,60 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 	}
 }

-func (s *TCPNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
+func (s *TCPNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
 	s.RLock()
 	record, found := s.ips[domain]
 	s.RUnlock()

 	if !found {
-		return nil, 0, errRecordNotFound
+		return nil, errRecordNotFound
 	}

 	var err4 error
 	var err6 error
 	var ips []net.Address
 	var ip6 []net.Address
-	var ttl uint32

 	if option.IPv4Enable {
-		ips, ttl, err4 = record.A.getIPs()
+		ips, err4 = record.A.getIPs()
 	}

 	if option.IPv6Enable {
-		ip6, ttl, err6 = record.AAAA.getIPs()
+		ip6, err6 = record.AAAA.getIPs()
 		ips = append(ips, ip6...)
 	}

 	if len(ips) > 0 {
-		netips, err := toNetIP(ips)
-		return netips, ttl, err
+		return toNetIP(ips)
 	}

 	if err4 != nil {
-		return nil, 0, err4
+		return nil, err4
 	}

 	if err6 != nil {
-		return nil, 0, err6
+		return nil, err6
 	}

-	return nil, 0, dns_feature.ErrEmptyResponse
+	return nil, dns_feature.ErrEmptyResponse
 }

 // QueryIP implements Server.
-func (s *TCPNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, uint32, error) {
+func (s *TCPNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
 	option = ResolveIpOptionOverride(s.queryStrategy, option)
 	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, 0, dns_feature.ErrEmptyResponse
+		return nil, dns_feature.ErrEmptyResponse
 	}

 	if disableCache {
 		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
 	} else {
-		ips, ttl, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse || dns_feature.RCodeFromError(err) == 3 {
+		ips, err := s.findIPsForDomain(fqdn, option)
+		if err == nil || err == dns_feature.ErrEmptyResponse {
 			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
 			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
-			return ips, ttl, err
+			return ips, err
 		}
 	}

@@ -362,15 +360,15 @@ func (s *TCPNameServer) QueryIP(ctx context.Context, domain string, clientIP net
 	start := time.Now()

 	for {
-		ips, ttl, err := s.findIPsForDomain(fqdn, option)
+		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
 			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
-			return ips, ttl, err
+			return ips, err
 		}

 		select {
 		case <-ctx.Done():
-			return nil, 0, ctx.Err()
+			return nil, ctx.Err()
 		case <-done:
 		}
 	}
--- a/app/dns/nameserver_tcp_test.go
+++ b/app/dns/nameserver_tcp_test.go
@@ -19,7 +19,7 @@ func TestTCPLocalNameServer(t *testing.T) {
 	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP)
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
@@ -36,7 +36,7 @@ func TestTCPLocalNameServerWithCache(t *testing.T) {
 	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP)
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
@@ -47,7 +47,7 @@ func TestTCPLocalNameServerWithCache(t *testing.T) {
 	}

 	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips2, _, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, true)
@@ -64,7 +64,7 @@ func TestTCPLocalNameServerWithIPv4Override(t *testing.T) {
 	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP4)
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
@@ -88,7 +88,7 @@ func TestTCPLocalNameServerWithIPv6Override(t *testing.T) {
 	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP6)
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, _, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 	}, false)
--- a/app/dns/nameserver_udp.go
+++ b/app/dns/nameserver_udp.go
@@ -27,7 +27,7 @@ type ClassicNameServer struct {
 	name          string
 	address       *net.Destination
 	ips           map[string]*record
-	requests      map[uint16]*udpDnsRequest
+	requests      map[uint16]*dnsRequest
 	pub           *pubsub.Service
 	udpServer     *udp.Dispatcher
 	cleanup       *task.Periodic
@@ -35,11 +35,6 @@ type ClassicNameServer struct {
 	queryStrategy QueryStrategy
 }

-type udpDnsRequest struct {
-	dnsRequest
-	ctx context.Context
-}
-
 // NewClassicNameServer creates udp server object for remote resolving.
 func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) *ClassicNameServer {
 	// default to 53 if unspecific
@@ -50,7 +45,7 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
 	s := &ClassicNameServer{
 		address:       &address,
 		ips:           make(map[string]*record),
-		requests:      make(map[uint16]*udpDnsRequest),
+		requests:      make(map[uint16]*dnsRequest),
 		pub:           pubsub.NewService(),
 		name:          strings.ToUpper(address.String()),
 		queryStrategy: queryStrategy,
@@ -106,7 +101,7 @@ func (s *ClassicNameServer) Cleanup() error {
 	}

 	if len(s.requests) == 0 {
-		s.requests = make(map[uint16]*udpDnsRequest)
+		s.requests = make(map[uint16]*dnsRequest)
 	}

 	return nil
@@ -133,27 +128,6 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 		return
 	}

-	// if truncated, retry with EDNS0 option(udp payload size: 1350)
-	if ipRec.RawHeader.Truncated {
-		// if already has EDNS0 option, no need to retry
-		if ok && len(req.msg.Additionals) == 0 {
-			// copy necessary meta data from original request
-			// and add EDNS0 option
-			opt := new(dnsmessage.Resource)
-			common.Must(opt.Header.SetEDNS0(1350, 0xfe00, true))
-			opt.Body = &dnsmessage.OPTResource{}
-			newMsg := *req.msg
-			newReq := *req
-			newMsg.Additionals = append(newMsg.Additionals, *opt)
-			newMsg.ID = s.newReqID()
-			newReq.msg = &newMsg
-			s.addPendingRequest(&newReq)
-			b, _ := dns.PackMessage(newReq.msg)
-			s.udpServer.Dispatch(toDnsContext(newReq.ctx, s.address.String()), *s.address, b)
-			return
-		}
-	}
-
 	var rec record
 	switch req.reqType {
 	case dnsmessage.TypeA:
@@ -205,7 +179,7 @@ func (s *ClassicNameServer) newReqID() uint16 {
 	return uint16(atomic.AddUint32(&s.reqID, 1))
 }

-func (s *ClassicNameServer) addPendingRequest(req *udpDnsRequest) {
+func (s *ClassicNameServer) addPendingRequest(req *dnsRequest) {
 	s.Lock()
 	defer s.Unlock()

@@ -217,75 +191,69 @@ func (s *ClassicNameServer) addPendingRequest(req *udpDnsRequest) {
 func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
 	errors.LogDebug(ctx, s.name, " querying DNS for: ", domain)

-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP, 0))
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))

 	for _, req := range reqs {
-		udpReq := &udpDnsRequest{
-			dnsRequest: *req,
-			ctx:        ctx,
-		}
-		s.addPendingRequest(udpReq)
+		s.addPendingRequest(req)
 		b, _ := dns.PackMessage(req.msg)
 		s.udpServer.Dispatch(toDnsContext(ctx, s.address.String()), *s.address, b)
 	}
 }

-func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
+func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
 	s.RLock()
 	record, found := s.ips[domain]
 	s.RUnlock()

 	if !found {
-		return nil, 0, errRecordNotFound
+		return nil, errRecordNotFound
 	}

 	var err4 error
 	var err6 error
 	var ips []net.Address
 	var ip6 []net.Address
-	var ttl uint32

 	if option.IPv4Enable {
-		ips, ttl, err4 = record.A.getIPs()
+		ips, err4 = record.A.getIPs()
 	}

 	if option.IPv6Enable {
-		ip6, ttl, err6 = record.AAAA.getIPs()
+		ip6, err6 = record.AAAA.getIPs()
 		ips = append(ips, ip6...)
 	}

 	if len(ips) > 0 {
-		netips, err := toNetIP(ips)
-		return netips, ttl, err
+		return toNetIP(ips)
 	}

 	if err4 != nil {
-		return nil, 0, err4
+		return nil, err4
 	}

 	if err6 != nil {
-		return nil, 0, err6
+		return nil, err6
 	}

-	return nil, 0, dns_feature.ErrEmptyResponse
+	return nil, dns_feature.ErrEmptyResponse
 }

 // QueryIP implements Server.
-func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, uint32, error) {
+func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
 	option = ResolveIpOptionOverride(s.queryStrategy, option)
 	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, 0, dns_feature.ErrEmptyResponse
+		return nil, dns_feature.ErrEmptyResponse
 	}

 	if disableCache {
 		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
 	} else {
-		ips, ttl, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse || dns_feature.RCodeFromError(err) == 3 {
+		ips, err := s.findIPsForDomain(fqdn, option)
+		if err == nil || err == dns_feature.ErrEmptyResponse {
 			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
 			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
-			return ips, ttl, err
+			return ips, err
 		}
 	}

@@ -319,15 +287,15 @@ func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP
 	start := time.Now()

 	for {
-		ips, ttl, err := s.findIPsForDomain(fqdn, option)
+		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
 			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
-			return ips, ttl, err
+			return ips, err
 		}

 		select {
 		case <-ctx.Done():
-			return nil, 0, ctx.Err()
+			return nil, ctx.Err()
 		case <-done:
 		}
 	}
--- a/app/log/log.go
+++ b/app/log/log.go
@@ -31,8 +31,8 @@ func New(ctx context.Context, config *Config) (*Instance, error) {
 	}
 	log.RegisterHandler(g)

-	// start logger now,
-	// then other modules will be able to log during initialization
+	// Start logger instantly on initialization
+	// Other modules would log during initialization
 	if err := g.startInternal(); err != nil {
 		return nil, err
 	}
--- a/app/metrics/config.pb.go
+++ b/app/metrics/config.pb.go
@@ -27,8 +27,7 @@ type Config struct {
 	unknownFields protoimpl.UnknownFields

 	// Tag of the outbound handler that handles metrics http connections.
-	Tag    string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
-	Listen string `protobuf:"bytes,2,opt,name=listen,proto3" json:"listen,omitempty"`
+	Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
 }

 func (x *Config) Reset() {
@@ -68,28 +67,20 @@ func (x *Config) GetTag() string {
 	return ""
 }

-func (x *Config) GetListen() string {
-	if x != nil {
-		return x.Listen
-	}
-	return ""
-}
-
 var File_app_metrics_config_proto protoreflect.FileDescriptor

 var file_app_metrics_config_proto_rawDesc = []byte{
 	0x0a, 0x18, 0x61, 0x70, 0x70, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2f, 0x63, 0x6f,
 	0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x10, 0x78, 0x72, 0x61, 0x79,
-	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x22, 0x32, 0x0a, 0x06,
+	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x22, 0x1a, 0x0a, 0x06,
 	0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x10, 0x0a, 0x03, 0x74, 0x61, 0x67, 0x18, 0x01, 0x20,
-	0x01, 0x28, 0x09, 0x52, 0x03, 0x74, 0x61, 0x67, 0x12, 0x16, 0x0a, 0x06, 0x6c, 0x69, 0x73, 0x74,
-	0x65, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x6c, 0x69, 0x73, 0x74, 0x65, 0x6e,
-	0x42, 0x52, 0x0a, 0x14, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70,
-	0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x50, 0x01, 0x5a, 0x25, 0x67, 0x69, 0x74, 0x68,
-	0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79,
-	0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63,
-	0x73, 0xaa, 0x02, 0x10, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x4d, 0x65, 0x74,
-	0x72, 0x69, 0x63, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x01, 0x28, 0x09, 0x52, 0x03, 0x74, 0x61, 0x67, 0x42, 0x52, 0x0a, 0x14, 0x63, 0x6f, 0x6d, 0x2e,
+	0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73,
+	0x50, 0x01, 0x5a, 0x25, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
+	0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70,
+	0x70, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0xaa, 0x02, 0x10, 0x58, 0x72, 0x61, 0x79,
+	0x2e, 0x41, 0x70, 0x70, 0x2e, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }

 var (
--- a/app/metrics/config.proto
+++ b/app/metrics/config.proto
@@ -10,5 +10,4 @@ option java_multiple_files = true;
 message Config {
  // Tag of the outbound handler that handles metrics http connections.
  string tag = 1;
-  string listen = 2;
 }
--- a/app/metrics/metrics.go
+++ b/app/metrics/metrics.go
@@ -24,15 +24,12 @@ type MetricsHandler struct {
 	statsManager feature_stats.Manager
 	observatory  extension.Observatory
 	tag          string
-	listen       string
-	tcpListener  net.Listener
 }

 // NewMetricsHandler creates a new MetricsHandler based on the given config.
 func NewMetricsHandler(ctx context.Context, config *Config) (*MetricsHandler, error) {
 	c := &MetricsHandler{
-		tag:    config.Tag,
-		listen: config.Listen,
+		tag: config.Tag,
 	}
 	common.Must(core.RequireFeatures(ctx, func(om outbound.Manager, sm feature_stats.Manager) {
 		c.statsManager = sm
@@ -90,23 +87,6 @@ func (p *MetricsHandler) Type() interface{} {
 }

 func (p *MetricsHandler) Start() error {
-
-	// direct listen a port if listen is set
-	if p.listen != "" {
-		TCPlistener, err := net.Listen("tcp", p.listen)
-		if err != nil {
-			return err
-		}
-		p.tcpListener = TCPlistener
-		errors.LogInfo(context.Background(), "Metrics server listening on ", p.listen)
-
-		go func() {
-			if err := http.Serve(TCPlistener, http.DefaultServeMux); err != nil {
-				errors.LogErrorInner(context.Background(), err, "failed to start metrics server")
-			}
-		}()
-	}
-
 	listener := &OutboundListener{
 		buffer: make(chan net.Conn, 4),
 		done:   done.New(),
--- a/app/observatory/burst/burstobserver.go
+++ b/app/observatory/burst/burstobserver.go
@@ -12,7 +12,6 @@ import (
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/extension"
 	"github.com/xtls/xray-core/features/outbound"
-	"github.com/xtls/xray-core/features/routing"
 	"google.golang.org/protobuf/proto"
 )

@@ -89,15 +88,13 @@ func (o *Observer) Close() error {

 func New(ctx context.Context, config *Config) (*Observer, error) {
 	var outboundManager outbound.Manager
-	var dispatcher routing.Dispatcher
-	err := core.RequireFeatures(ctx, func(om outbound.Manager, rd routing.Dispatcher) {
+	err := core.RequireFeatures(ctx, func(om outbound.Manager) {
 		outboundManager = om
-		dispatcher = rd
 	})
 	if err != nil {
 		return nil, errors.New("Cannot get depended features").Base(err)
 	}
-	hp := NewHealthPing(ctx, dispatcher, config.PingConfig)
+	hp := NewHealthPing(ctx, config.PingConfig)
 	return &Observer{
 		config: config,
 		ctx:    ctx,
--- a/app/observatory/burst/healthping.go
+++ b/app/observatory/burst/healthping.go
@@ -9,7 +9,6 @@ import (

 	"github.com/xtls/xray-core/common/dice"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/features/routing"
 )

 // HealthPingSettings holds settings for health Checker
@@ -24,7 +23,6 @@ type HealthPingSettings struct {
 // HealthPing is the health checker for balancers
 type HealthPing struct {
 	ctx         context.Context
-	dispatcher  routing.Dispatcher
 	access      sync.Mutex
 	ticker      *time.Ticker
 	tickerClose chan struct{}
@@ -34,7 +32,7 @@ type HealthPing struct {
 }

 // NewHealthPing creates a new HealthPing with settings
-func NewHealthPing(ctx context.Context, dispatcher routing.Dispatcher, config *HealthPingConfig) *HealthPing {
+func NewHealthPing(ctx context.Context, config *HealthPingConfig) *HealthPing {
 	settings := &HealthPingSettings{}
 	if config != nil {
 		settings = &HealthPingSettings{
@@ -66,10 +64,9 @@ func NewHealthPing(ctx context.Context, dispatcher routing.Dispatcher, config *H
 		settings.Timeout = time.Duration(5) * time.Second
 	}
 	return &HealthPing{
-		ctx:        ctx,
-		dispatcher: dispatcher,
-		Settings:   settings,
-		Results:    nil,
+		ctx:      ctx,
+		Settings: settings,
+		Results:  nil,
 	}
 }

@@ -152,7 +149,6 @@ func (h *HealthPing) doCheck(tags []string, duration time.Duration, rounds int)
 		handler := tag
 		client := newPingClient(
 			h.ctx,
-			h.dispatcher,
 			h.Settings.Destination,
 			h.Settings.Timeout,
 			handler,
--- a/app/observatory/burst/ping.go
+++ b/app/observatory/burst/ping.go
@@ -6,7 +6,6 @@ import (
 	"time"

 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet/tagged"
 )

@@ -15,10 +14,10 @@ type pingClient struct {
 	httpClient  *http.Client
 }

-func newPingClient(ctx context.Context, dispatcher routing.Dispatcher, destination string, timeout time.Duration, handler string) *pingClient {
+func newPingClient(ctx context.Context, destination string, timeout time.Duration, handler string) *pingClient {
 	return &pingClient{
 		destination: destination,
-		httpClient:  newHTTPClient(ctx, dispatcher, handler, timeout),
+		httpClient:  newHTTPClient(ctx, handler, timeout),
 	}
 }

@@ -29,7 +28,7 @@ func newDirectPingClient(destination string, timeout time.Duration) *pingClient
 	}
 }

-func newHTTPClient(ctxv context.Context, dispatcher routing.Dispatcher, handler string, timeout time.Duration) *http.Client {
+func newHTTPClient(ctxv context.Context, handler string, timeout time.Duration) *http.Client {
 	tr := &http.Transport{
 		DisableKeepAlives: true,
 		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
@@ -37,7 +36,7 @@ func newHTTPClient(ctxv context.Context, dispatcher routing.Dispatcher, handler
 			if err != nil {
 				return nil, err
 			}
-			return tagged.Dialer(ctxv, dispatcher, dest, handler)
+			return tagged.Dialer(ctxv, dest, handler)
 		},
 	}
 	return &http.Client{
@@ -53,7 +52,7 @@ func newHTTPClient(ctxv context.Context, dispatcher routing.Dispatcher, handler
 // MeasureDelay returns the delay time of the request to dest
 func (s *pingClient) MeasureDelay() (time.Duration, error) {
 	if s.httpClient == nil {
-		panic("pingClient not initialized")
+		panic("pingClient no initialized")
 	}
 	req, err := http.NewRequest(http.MethodHead, s.destination, nil)
 	if err != nil {
--- a/app/observatory/command/command.go
+++ b/app/observatory/command/command.go
@@ -38,7 +38,7 @@ func init() {
 		sv := &service{v: s}
 		err := s.RequireFeatures(func(Observatory extension.Observatory) {
 			sv.observatory = Observatory
-		}, false)
+		})
 		if err != nil {
 			return nil, err
 		}
--- a/app/observatory/observer.go
+++ b/app/observatory/observer.go
@@ -18,7 +18,6 @@ import (
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/extension"
 	"github.com/xtls/xray-core/features/outbound"
-	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet/tagged"
 	"google.golang.org/protobuf/proto"
 )
@@ -32,8 +31,7 @@ type Observer struct {

 	finished *done.Instance

-	ohm        outbound.Manager
-	dispatcher routing.Dispatcher
+	ohm outbound.Manager
 }

 func (o *Observer) GetObservation(ctx context.Context) (proto.Message, error) {
@@ -133,7 +131,7 @@ func (o *Observer) probe(outbound string) ProbeResult {
 					return errors.New("cannot understand address").Base(err)
 				}
 				trackedCtx := session.TrackedConnectionError(o.ctx, errorCollectorForRequest)
-				conn, err := tagged.Dialer(trackedCtx, o.dispatcher, dest, outbound)
+				conn, err := tagged.Dialer(trackedCtx, dest, outbound)
 				if err != nil {
 					return errors.New("cannot dial remote address ", dest).Base(err)
 				}
@@ -217,19 +215,16 @@ func (o *Observer) findStatusLocationLockHolderOnly(outbound string) int {

 func New(ctx context.Context, config *Config) (*Observer, error) {
 	var outboundManager outbound.Manager
-	var dispatcher routing.Dispatcher
-	err := core.RequireFeatures(ctx, func(om outbound.Manager, rd routing.Dispatcher) {
+	err := core.RequireFeatures(ctx, func(om outbound.Manager) {
 		outboundManager = om
-		dispatcher = rd
 	})
 	if err != nil {
 		return nil, errors.New("Cannot get depended features").Base(err)
 	}
 	return &Observer{
-		config:     config,
-		ctx:        ctx,
-		ohm:        outboundManager,
-		dispatcher: dispatcher,
+		config: config,
+		ctx:    ctx,
+		ohm:    outboundManager,
 	}, nil
 }

--- a/app/policy/config.go
+++ b/app/policy/config.go
@@ -73,7 +73,6 @@ func (p *Policy) ToCorePolicy() policy.Session {
 	if p.Stats != nil {
 		cp.Stats.UserUplink = p.Stats.UserUplink
 		cp.Stats.UserDownlink = p.Stats.UserDownlink
-		cp.Stats.UserOnline = p.Stats.UserOnline
 	}
 	if p.Buffer != nil {
 		cp.Buffer.PerConnection = p.Buffer.Connection
--- a/app/policy/config.pb.go
+++ b/app/policy/config.pb.go
@@ -301,7 +301,6 @@ type Policy_Stats struct {

 	UserUplink   bool `protobuf:"varint,1,opt,name=user_uplink,json=userUplink,proto3" json:"user_uplink,omitempty"`
 	UserDownlink bool `protobuf:"varint,2,opt,name=user_downlink,json=userDownlink,proto3" json:"user_downlink,omitempty"`
-	UserOnline   bool `protobuf:"varint,3,opt,name=user_online,json=userOnline,proto3" json:"user_online,omitempty"`
 }

 func (x *Policy_Stats) Reset() {
@@ -348,13 +347,6 @@ func (x *Policy_Stats) GetUserDownlink() bool {
 	return false
 }

-func (x *Policy_Stats) GetUserOnline() bool {
-	if x != nil {
-		return x.UserOnline
-	}
-	return false
-}
-
 type Policy_Buffer struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -477,7 +469,7 @@ var file_app_policy_config_proto_rawDesc = []byte{
 	0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0f, 0x78, 0x72, 0x61, 0x79, 0x2e,
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@@ -504,51 +496,49 @@ var file_app_policy_config_proto_rawDesc = []byte{
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 }

 var (
--- a/app/policy/config.proto
+++ b/app/policy/config.proto
@@ -22,7 +22,6 @@ message Policy {
  message Stats {
    bool user_uplink = 1;
    bool user_downlink = 2;
-    bool user_online = 3;
  }

  message Buffer {
--- a/app/proxyman/command/command.go
+++ b/app/proxyman/command/command.go
@@ -5,7 +5,6 @@ import (

 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/inbound"
 	"github.com/xtls/xray-core/features/outbound"
@@ -99,46 +98,6 @@ func (s *handlerServer) AlterInbound(ctx context.Context, request *AlterInboundR
 	return &AlterInboundResponse{}, operation.ApplyInbound(ctx, handler)
 }

-func (s *handlerServer) GetInboundUsers(ctx context.Context, request *GetInboundUserRequest) (*GetInboundUserResponse, error) {
-	handler, err := s.ihm.GetHandler(ctx, request.Tag)
-	if err != nil {
-		return nil, errors.New("failed to get handler: ", request.Tag).Base(err)
-	}
-	p, err := getInbound(handler)
-	if err != nil {
-		return nil, err
-	}
-	um, ok := p.(proxy.UserManager)
-	if !ok {
-		return nil, errors.New("proxy is not a UserManager")
-	}
-	if len(request.Email) > 0 {
-		return &GetInboundUserResponse{Users: []*protocol.User{protocol.ToProtoUser(um.GetUser(ctx, request.Email))}}, nil
-	}
-	var result = make([]*protocol.User, 0, 100)
-	users := um.GetUsers(ctx)
-	for _, u := range users {
-		result = append(result, protocol.ToProtoUser(u))
-	}
-	return &GetInboundUserResponse{Users: result}, nil
-}
-
-func (s *handlerServer) GetInboundUsersCount(ctx context.Context, request *GetInboundUserRequest) (*GetInboundUsersCountResponse, error) {
-	handler, err := s.ihm.GetHandler(ctx, request.Tag)
-	if err != nil {
-		return nil, errors.New("failed to get handler: ", request.Tag).Base(err)
-	}
-	p, err := getInbound(handler)
-	if err != nil {
-		return nil, err
-	}
-	um, ok := p.(proxy.UserManager)
-	if !ok {
-		return nil, errors.New("proxy is not a UserManager")
-	}
-	return &GetInboundUsersCountResponse{Count: um.GetUsersCount(ctx)}, nil
-}
-
 func (s *handlerServer) AddOutbound(ctx context.Context, request *AddOutboundRequest) (*AddOutboundResponse, error) {
 	if err := core.AddOutboundHandler(s.s, request.Outbound); err != nil {
 		return nil, err
@@ -177,7 +136,7 @@ func (s *service) Register(server *grpc.Server) {
 	common.Must(s.v.RequireFeatures(func(im inbound.Manager, om outbound.Manager) {
 		hs.ihm = im
 		hs.ohm = om
-	}, false))
+	}))
 	RegisterHandlerServiceServer(server, hs)

 	// For compatibility purposes
--- a/app/proxyman/command/command.pb.go
+++ b/app/proxyman/command/command.pb.go
@@ -364,149 +364,6 @@ func (*AlterInboundResponse) Descriptor() ([]byte, []int) {
 	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{7}
 }

-type GetInboundUserRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Tag   string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
-	Email string `protobuf:"bytes,2,opt,name=email,proto3" json:"email,omitempty"`
-}
-
-func (x *GetInboundUserRequest) Reset() {
-	*x = GetInboundUserRequest{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *GetInboundUserRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*GetInboundUserRequest) ProtoMessage() {}
-
-func (x *GetInboundUserRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use GetInboundUserRequest.ProtoReflect.Descriptor instead.
-func (*GetInboundUserRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{8}
-}
-
-func (x *GetInboundUserRequest) GetTag() string {
-	if x != nil {
-		return x.Tag
-	}
-	return ""
-}
-
-func (x *GetInboundUserRequest) GetEmail() string {
-	if x != nil {
-		return x.Email
-	}
-	return ""
-}
-
-type GetInboundUserResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Users []*protocol.User `protobuf:"bytes,1,rep,name=users,proto3" json:"users,omitempty"`
-}
-
-func (x *GetInboundUserResponse) Reset() {
-	*x = GetInboundUserResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *GetInboundUserResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*GetInboundUserResponse) ProtoMessage() {}
-
-func (x *GetInboundUserResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use GetInboundUserResponse.ProtoReflect.Descriptor instead.
-func (*GetInboundUserResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{9}
-}
-
-func (x *GetInboundUserResponse) GetUsers() []*protocol.User {
-	if x != nil {
-		return x.Users
-	}
-	return nil
-}
-
-type GetInboundUsersCountResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Count int64 `protobuf:"varint,1,opt,name=count,proto3" json:"count,omitempty"`
-}
-
-func (x *GetInboundUsersCountResponse) Reset() {
-	*x = GetInboundUsersCountResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *GetInboundUsersCountResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*GetInboundUsersCountResponse) ProtoMessage() {}
-
-func (x *GetInboundUsersCountResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use GetInboundUsersCountResponse.ProtoReflect.Descriptor instead.
-func (*GetInboundUsersCountResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{10}
-}
-
-func (x *GetInboundUsersCountResponse) GetCount() int64 {
-	if x != nil {
-		return x.Count
-	}
-	return 0
-}
-
 type AddOutboundRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -517,7 +374,7 @@ type AddOutboundRequest struct {

 func (x *AddOutboundRequest) Reset() {
 	*x = AddOutboundRequest{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -529,7 +386,7 @@ func (x *AddOutboundRequest) String() string {
 func (*AddOutboundRequest) ProtoMessage() {}

 func (x *AddOutboundRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -542,7 +399,7 @@ func (x *AddOutboundRequest) ProtoReflect() protoreflect.Message {

 // Deprecated: Use AddOutboundRequest.ProtoReflect.Descriptor instead.
 func (*AddOutboundRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{11}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{8}
 }

 func (x *AddOutboundRequest) GetOutbound() *core.OutboundHandlerConfig {
@@ -560,7 +417,7 @@ type AddOutboundResponse struct {

 func (x *AddOutboundResponse) Reset() {
 	*x = AddOutboundResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -572,7 +429,7 @@ func (x *AddOutboundResponse) String() string {
 func (*AddOutboundResponse) ProtoMessage() {}

 func (x *AddOutboundResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -585,7 +442,7 @@ func (x *AddOutboundResponse) ProtoReflect() protoreflect.Message {

 // Deprecated: Use AddOutboundResponse.ProtoReflect.Descriptor instead.
 func (*AddOutboundResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{12}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{9}
 }

 type RemoveOutboundRequest struct {
@@ -598,7 +455,7 @@ type RemoveOutboundRequest struct {

 func (x *RemoveOutboundRequest) Reset() {
 	*x = RemoveOutboundRequest{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -610,7 +467,7 @@ func (x *RemoveOutboundRequest) String() string {
 func (*RemoveOutboundRequest) ProtoMessage() {}

 func (x *RemoveOutboundRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -623,7 +480,7 @@ func (x *RemoveOutboundRequest) ProtoReflect() protoreflect.Message {

 // Deprecated: Use RemoveOutboundRequest.ProtoReflect.Descriptor instead.
 func (*RemoveOutboundRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{13}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{10}
 }

 func (x *RemoveOutboundRequest) GetTag() string {
@@ -641,7 +498,7 @@ type RemoveOutboundResponse struct {

 func (x *RemoveOutboundResponse) Reset() {
 	*x = RemoveOutboundResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -653,7 +510,7 @@ func (x *RemoveOutboundResponse) String() string {
 func (*RemoveOutboundResponse) ProtoMessage() {}

 func (x *RemoveOutboundResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -666,7 +523,7 @@ func (x *RemoveOutboundResponse) ProtoReflect() protoreflect.Message {

 // Deprecated: Use RemoveOutboundResponse.ProtoReflect.Descriptor instead.
 func (*RemoveOutboundResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{14}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{11}
 }

 type AlterOutboundRequest struct {
@@ -680,7 +537,7 @@ type AlterOutboundRequest struct {

 func (x *AlterOutboundRequest) Reset() {
 	*x = AlterOutboundRequest{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[15]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -692,7 +549,7 @@ func (x *AlterOutboundRequest) String() string {
 func (*AlterOutboundRequest) ProtoMessage() {}

 func (x *AlterOutboundRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[15]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -705,7 +562,7 @@ func (x *AlterOutboundRequest) ProtoReflect() protoreflect.Message {

 // Deprecated: Use AlterOutboundRequest.ProtoReflect.Descriptor instead.
 func (*AlterOutboundRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{15}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{12}
 }

 func (x *AlterOutboundRequest) GetTag() string {
@@ -730,7 +587,7 @@ type AlterOutboundResponse struct {

 func (x *AlterOutboundResponse) Reset() {
 	*x = AlterOutboundResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[16]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -742,7 +599,7 @@ func (x *AlterOutboundResponse) String() string {
 func (*AlterOutboundResponse) ProtoMessage() {}

 func (x *AlterOutboundResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[16]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -755,7 +612,7 @@ func (x *AlterOutboundResponse) ProtoReflect() protoreflect.Message {

 // Deprecated: Use AlterOutboundResponse.ProtoReflect.Descriptor instead.
 func (*AlterOutboundResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{16}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{13}
 }

 type Config struct {
@@ -766,7 +623,7 @@ type Config struct {

 func (x *Config) Reset() {
 	*x = Config{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[17]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -778,7 +635,7 @@ func (x *Config) String() string {
 func (*Config) ProtoMessage() {}

 func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[17]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -791,7 +648,7 @@ func (x *Config) ProtoReflect() protoreflect.Message {

 // Deprecated: Use Config.ProtoReflect.Descriptor instead.
 func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{17}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{14}
 }

 var File_app_proxyman_command_command_proto protoreflect.FileDescriptor
@@ -831,107 +688,79 @@ var file_app_proxyman_command_command_proto_rawDesc = []byte{
 	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79, 0x70,
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+	0x22, 0x00, 0x12, 0x77, 0x0a, 0x0e, 0x52, 0x65, 0x6d, 0x6f, 0x76, 0x65, 0x4f, 0x75, 0x74, 0x62,
+	0x6f, 0x75, 0x6e, 0x64, 0x12, 0x30, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e,
+	0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64,
+	0x2e, 0x52, 0x65, 0x6d, 0x6f, 0x76, 0x65, 0x4f, 0x75, 0x74, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x52,
+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x31, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70,
+	0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61,
+	0x6e, 0x64, 0x2e, 0x52, 0x65, 0x6d, 0x6f, 0x76, 0x65, 0x4f, 0x75, 0x74, 0x62, 0x6f, 0x75, 0x6e,
+	0x64, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x74, 0x0a, 0x0d, 0x41,
+	0x6c, 0x74, 0x65, 0x72, 0x4f, 0x75, 0x74, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x12, 0x2f, 0x2e, 0x78,
+	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e,
+	0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x2e, 0x41, 0x6c, 0x74, 0x65, 0x72, 0x4f, 0x75,
+	0x74, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x30, 0x2e,
+	0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61,
+	0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x2e, 0x41, 0x6c, 0x74, 0x65, 0x72, 0x4f,
+	0x75, 0x74, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
+	0x00, 0x42, 0x6d, 0x0a, 0x1d, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70,
+	0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61,
+	0x6e, 0x64, 0x50, 0x01, 0x5a, 0x2e, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d,
+	0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f,
+	0x61, 0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x2f, 0x63, 0x6f, 0x6d,
+	0x6d, 0x61, 0x6e, 0x64, 0xaa, 0x02, 0x19, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e,
+	0x50, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }

 var (
@@ -946,59 +775,51 @@ func file_app_proxyman_command_command_proto_rawDescGZIP() []byte {
 	return file_app_proxyman_command_command_proto_rawDescData
 }

-var file_app_proxyman_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 18)
+var file_app_proxyman_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 15)
 var file_app_proxyman_command_command_proto_goTypes = []any{
-	(*AddUserOperation)(nil),             // 0: xray.app.proxyman.command.AddUserOperation
-	(*RemoveUserOperation)(nil),          // 1: xray.app.proxyman.command.RemoveUserOperation
-	(*AddInboundRequest)(nil),            // 2: xray.app.proxyman.command.AddInboundRequest
-	(*AddInboundResponse)(nil),           // 3: xray.app.proxyman.command.AddInboundResponse
-	(*RemoveInboundRequest)(nil),         // 4: xray.app.proxyman.command.RemoveInboundRequest
-	(*RemoveInboundResponse)(nil),        // 5: xray.app.proxyman.command.RemoveInboundResponse
-	(*AlterInboundRequest)(nil),          // 6: xray.app.proxyman.command.AlterInboundRequest
-	(*AlterInboundResponse)(nil),         // 7: xray.app.proxyman.command.AlterInboundResponse
-	(*GetInboundUserRequest)(nil),        // 8: xray.app.proxyman.command.GetInboundUserRequest
-	(*GetInboundUserResponse)(nil),       // 9: xray.app.proxyman.command.GetInboundUserResponse
-	(*GetInboundUsersCountResponse)(nil), // 10: xray.app.proxyman.command.GetInboundUsersCountResponse
-	(*AddOutboundRequest)(nil),           // 11: xray.app.proxyman.command.AddOutboundRequest
-	(*AddOutboundResponse)(nil),          // 12: xray.app.proxyman.command.AddOutboundResponse
-	(*RemoveOutboundRequest)(nil),        // 13: xray.app.proxyman.command.RemoveOutboundRequest
-	(*RemoveOutboundResponse)(nil),       // 14: xray.app.proxyman.command.RemoveOutboundResponse
-	(*AlterOutboundRequest)(nil),         // 15: xray.app.proxyman.command.AlterOutboundRequest
-	(*AlterOutboundResponse)(nil),        // 16: xray.app.proxyman.command.AlterOutboundResponse
-	(*Config)(nil),                       // 17: xray.app.proxyman.command.Config
-	(*protocol.User)(nil),                // 18: xray.common.protocol.User
-	(*core.InboundHandlerConfig)(nil),    // 19: xray.core.InboundHandlerConfig
-	(*serial.TypedMessage)(nil),          // 20: xray.common.serial.TypedMessage
-	(*core.OutboundHandlerConfig)(nil),   // 21: xray.core.OutboundHandlerConfig
+	(*AddUserOperation)(nil),           // 0: xray.app.proxyman.command.AddUserOperation
+	(*RemoveUserOperation)(nil),        // 1: xray.app.proxyman.command.RemoveUserOperation
+	(*AddInboundRequest)(nil),          // 2: xray.app.proxyman.command.AddInboundRequest
+	(*AddInboundResponse)(nil),         // 3: xray.app.proxyman.command.AddInboundResponse
+	(*RemoveInboundRequest)(nil),       // 4: xray.app.proxyman.command.RemoveInboundRequest
+	(*RemoveInboundResponse)(nil),      // 5: xray.app.proxyman.command.RemoveInboundResponse
+	(*AlterInboundRequest)(nil),        // 6: xray.app.proxyman.command.AlterInboundRequest
+	(*AlterInboundResponse)(nil),       // 7: xray.app.proxyman.command.AlterInboundResponse
+	(*AddOutboundRequest)(nil),         // 8: xray.app.proxyman.command.AddOutboundRequest
+	(*AddOutboundResponse)(nil),        // 9: xray.app.proxyman.command.AddOutboundResponse
+	(*RemoveOutboundRequest)(nil),      // 10: xray.app.proxyman.command.RemoveOutboundRequest
+	(*RemoveOutboundResponse)(nil),     // 11: xray.app.proxyman.command.RemoveOutboundResponse
+	(*AlterOutboundRequest)(nil),       // 12: xray.app.proxyman.command.AlterOutboundRequest
+	(*AlterOutboundResponse)(nil),      // 13: xray.app.proxyman.command.AlterOutboundResponse
+	(*Config)(nil),                     // 14: xray.app.proxyman.command.Config
+	(*protocol.User)(nil),              // 15: xray.common.protocol.User
+	(*core.InboundHandlerConfig)(nil),  // 16: xray.core.InboundHandlerConfig
+	(*serial.TypedMessage)(nil),        // 17: xray.common.serial.TypedMessage
+	(*core.OutboundHandlerConfig)(nil), // 18: xray.core.OutboundHandlerConfig
 }
 var file_app_proxyman_command_command_proto_depIdxs = []int32{
-	18, // 0: xray.app.proxyman.command.AddUserOperation.user:type_name -> xray.common.protocol.User
-	19, // 1: xray.app.proxyman.command.AddInboundRequest.inbound:type_name -> xray.core.InboundHandlerConfig
-	20, // 2: xray.app.proxyman.command.AlterInboundRequest.operation:type_name -> xray.common.serial.TypedMessage
-	18, // 3: xray.app.proxyman.command.GetInboundUserResponse.users:type_name -> xray.common.protocol.User
-	21, // 4: xray.app.proxyman.command.AddOutboundRequest.outbound:type_name -> xray.core.OutboundHandlerConfig
-	20, // 5: xray.app.proxyman.command.AlterOutboundRequest.operation:type_name -> xray.common.serial.TypedMessage
-	2,  // 6: xray.app.proxyman.command.HandlerService.AddInbound:input_type -> xray.app.proxyman.command.AddInboundRequest
-	4,  // 7: xray.app.proxyman.command.HandlerService.RemoveInbound:input_type -> xray.app.proxyman.command.RemoveInboundRequest
-	6,  // 8: xray.app.proxyman.command.HandlerService.AlterInbound:input_type -> xray.app.proxyman.command.AlterInboundRequest
-	8,  // 9: xray.app.proxyman.command.HandlerService.GetInboundUsers:input_type -> xray.app.proxyman.command.GetInboundUserRequest
-	8,  // 10: xray.app.proxyman.command.HandlerService.GetInboundUsersCount:input_type -> xray.app.proxyman.command.GetInboundUserRequest
-	11, // 11: xray.app.proxyman.command.HandlerService.AddOutbound:input_type -> xray.app.proxyman.command.AddOutboundRequest
-	13, // 12: xray.app.proxyman.command.HandlerService.RemoveOutbound:input_type -> xray.app.proxyman.command.RemoveOutboundRequest
-	15, // 13: xray.app.proxyman.command.HandlerService.AlterOutbound:input_type -> xray.app.proxyman.command.AlterOutboundRequest
-	3,  // 14: xray.app.proxyman.command.HandlerService.AddInbound:output_type -> xray.app.proxyman.command.AddInboundResponse
-	5,  // 15: xray.app.proxyman.command.HandlerService.RemoveInbound:output_type -> xray.app.proxyman.command.RemoveInboundResponse
-	7,  // 16: xray.app.proxyman.command.HandlerService.AlterInbound:output_type -> xray.app.proxyman.command.AlterInboundResponse
-	9,  // 17: xray.app.proxyman.command.HandlerService.GetInboundUsers:output_type -> xray.app.proxyman.command.GetInboundUserResponse
-	10, // 18: xray.app.proxyman.command.HandlerService.GetInboundUsersCount:output_type -> xray.app.proxyman.command.GetInboundUsersCountResponse
-	12, // 19: xray.app.proxyman.command.HandlerService.AddOutbound:output_type -> xray.app.proxyman.command.AddOutboundResponse
-	14, // 20: xray.app.proxyman.command.HandlerService.RemoveOutbound:output_type -> xray.app.proxyman.command.RemoveOutboundResponse
-	16, // 21: xray.app.proxyman.command.HandlerService.AlterOutbound:output_type -> xray.app.proxyman.command.AlterOutboundResponse
-	14, // [14:22] is the sub-list for method output_type
-	6,  // [6:14] is the sub-list for method input_type
-	6,  // [6:6] is the sub-list for extension type_name
-	6,  // [6:6] is the sub-list for extension extendee
-	0,  // [0:6] is the sub-list for field type_name
+	15, // 0: xray.app.proxyman.command.AddUserOperation.user:type_name -> xray.common.protocol.User
+	16, // 1: xray.app.proxyman.command.AddInboundRequest.inbound:type_name -> xray.core.InboundHandlerConfig
+	17, // 2: xray.app.proxyman.command.AlterInboundRequest.operation:type_name -> xray.common.serial.TypedMessage
+	18, // 3: xray.app.proxyman.command.AddOutboundRequest.outbound:type_name -> xray.core.OutboundHandlerConfig
+	17, // 4: xray.app.proxyman.command.AlterOutboundRequest.operation:type_name -> xray.common.serial.TypedMessage
+	2,  // 5: xray.app.proxyman.command.HandlerService.AddInbound:input_type -> xray.app.proxyman.command.AddInboundRequest
+	4,  // 6: xray.app.proxyman.command.HandlerService.RemoveInbound:input_type -> xray.app.proxyman.command.RemoveInboundRequest
+	6,  // 7: xray.app.proxyman.command.HandlerService.AlterInbound:input_type -> xray.app.proxyman.command.AlterInboundRequest
+	8,  // 8: xray.app.proxyman.command.HandlerService.AddOutbound:input_type -> xray.app.proxyman.command.AddOutboundRequest
+	10, // 9: xray.app.proxyman.command.HandlerService.RemoveOutbound:input_type -> xray.app.proxyman.command.RemoveOutboundRequest
+	12, // 10: xray.app.proxyman.command.HandlerService.AlterOutbound:input_type -> xray.app.proxyman.command.AlterOutboundRequest
+	3,  // 11: xray.app.proxyman.command.HandlerService.AddInbound:output_type -> xray.app.proxyman.command.AddInboundResponse
+	5,  // 12: xray.app.proxyman.command.HandlerService.RemoveInbound:output_type -> xray.app.proxyman.command.RemoveInboundResponse
+	7,  // 13: xray.app.proxyman.command.HandlerService.AlterInbound:output_type -> xray.app.proxyman.command.AlterInboundResponse
+	9,  // 14: xray.app.proxyman.command.HandlerService.AddOutbound:output_type -> xray.app.proxyman.command.AddOutboundResponse
+	11, // 15: xray.app.proxyman.command.HandlerService.RemoveOutbound:output_type -> xray.app.proxyman.command.RemoveOutboundResponse
+	13, // 16: xray.app.proxyman.command.HandlerService.AlterOutbound:output_type -> xray.app.proxyman.command.AlterOutboundResponse
+	11, // [11:17] is the sub-list for method output_type
+	5,  // [5:11] is the sub-list for method input_type
+	5,  // [5:5] is the sub-list for extension type_name
+	5,  // [5:5] is the sub-list for extension extendee
+	0,  // [0:5] is the sub-list for field type_name
 }

 func init() { file_app_proxyman_command_command_proto_init() }
@@ -1012,7 +833,7 @@ func file_app_proxyman_command_command_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_proxyman_command_command_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   18,
+			NumMessages:   15,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
--- a/app/proxyman/command/command.proto
+++ b/app/proxyman/command/command.proto
@@ -37,19 +37,6 @@ message AlterInboundRequest {

 message AlterInboundResponse {}

-message GetInboundUserRequest {
-  string tag = 1;
-  string email = 2;
-}
-
-message GetInboundUserResponse {
-  repeated xray.common.protocol.User users = 1;
-}
-
-message GetInboundUsersCountResponse {
-  int64 count = 1;
-}
-
 message AddOutboundRequest {
  core.OutboundHandlerConfig outbound = 1;
 }
@@ -76,10 +63,6 @@ service HandlerService {

  rpc AlterInbound(AlterInboundRequest) returns (AlterInboundResponse) {}

-  rpc GetInboundUsers(GetInboundUserRequest) returns (GetInboundUserResponse) {}
-
-  rpc GetInboundUsersCount(GetInboundUserRequest) returns (GetInboundUsersCountResponse) {}
-
  rpc AddOutbound(AddOutboundRequest) returns (AddOutboundResponse) {}

  rpc RemoveOutbound(RemoveOutboundRequest) returns (RemoveOutboundResponse) {}
--- a/app/proxyman/command/command_grpc.pb.go
+++ b/app/proxyman/command/command_grpc.pb.go
@@ -19,14 +19,12 @@ import (
 const _ = grpc.SupportPackageIsVersion9

 const (
-	HandlerService_AddInbound_FullMethodName           = "/xray.app.proxyman.command.HandlerService/AddInbound"
-	HandlerService_RemoveInbound_FullMethodName        = "/xray.app.proxyman.command.HandlerService/RemoveInbound"
-	HandlerService_AlterInbound_FullMethodName         = "/xray.app.proxyman.command.HandlerService/AlterInbound"
-	HandlerService_GetInboundUsers_FullMethodName      = "/xray.app.proxyman.command.HandlerService/GetInboundUsers"
-	HandlerService_GetInboundUsersCount_FullMethodName = "/xray.app.proxyman.command.HandlerService/GetInboundUsersCount"
-	HandlerService_AddOutbound_FullMethodName          = "/xray.app.proxyman.command.HandlerService/AddOutbound"
-	HandlerService_RemoveOutbound_FullMethodName       = "/xray.app.proxyman.command.HandlerService/RemoveOutbound"
-	HandlerService_AlterOutbound_FullMethodName        = "/xray.app.proxyman.command.HandlerService/AlterOutbound"
+	HandlerService_AddInbound_FullMethodName     = "/xray.app.proxyman.command.HandlerService/AddInbound"
+	HandlerService_RemoveInbound_FullMethodName  = "/xray.app.proxyman.command.HandlerService/RemoveInbound"
+	HandlerService_AlterInbound_FullMethodName   = "/xray.app.proxyman.command.HandlerService/AlterInbound"
+	HandlerService_AddOutbound_FullMethodName    = "/xray.app.proxyman.command.HandlerService/AddOutbound"
+	HandlerService_RemoveOutbound_FullMethodName = "/xray.app.proxyman.command.HandlerService/RemoveOutbound"
+	HandlerService_AlterOutbound_FullMethodName  = "/xray.app.proxyman.command.HandlerService/AlterOutbound"
 )

 // HandlerServiceClient is the client API for HandlerService service.
@@ -36,8 +34,6 @@ type HandlerServiceClient interface {
 	AddInbound(ctx context.Context, in *AddInboundRequest, opts ...grpc.CallOption) (*AddInboundResponse, error)
 	RemoveInbound(ctx context.Context, in *RemoveInboundRequest, opts ...grpc.CallOption) (*RemoveInboundResponse, error)
 	AlterInbound(ctx context.Context, in *AlterInboundRequest, opts ...grpc.CallOption) (*AlterInboundResponse, error)
-	GetInboundUsers(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUserResponse, error)
-	GetInboundUsersCount(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUsersCountResponse, error)
 	AddOutbound(ctx context.Context, in *AddOutboundRequest, opts ...grpc.CallOption) (*AddOutboundResponse, error)
 	RemoveOutbound(ctx context.Context, in *RemoveOutboundRequest, opts ...grpc.CallOption) (*RemoveOutboundResponse, error)
 	AlterOutbound(ctx context.Context, in *AlterOutboundRequest, opts ...grpc.CallOption) (*AlterOutboundResponse, error)
@@ -81,26 +77,6 @@ func (c *handlerServiceClient) AlterInbound(ctx context.Context, in *AlterInboun
 	return out, nil
 }

-func (c *handlerServiceClient) GetInboundUsers(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUserResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(GetInboundUserResponse)
-	err := c.cc.Invoke(ctx, HandlerService_GetInboundUsers_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *handlerServiceClient) GetInboundUsersCount(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUsersCountResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(GetInboundUsersCountResponse)
-	err := c.cc.Invoke(ctx, HandlerService_GetInboundUsersCount_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 func (c *handlerServiceClient) AddOutbound(ctx context.Context, in *AddOutboundRequest, opts ...grpc.CallOption) (*AddOutboundResponse, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(AddOutboundResponse)
@@ -138,8 +114,6 @@ type HandlerServiceServer interface {
 	AddInbound(context.Context, *AddInboundRequest) (*AddInboundResponse, error)
 	RemoveInbound(context.Context, *RemoveInboundRequest) (*RemoveInboundResponse, error)
 	AlterInbound(context.Context, *AlterInboundRequest) (*AlterInboundResponse, error)
-	GetInboundUsers(context.Context, *GetInboundUserRequest) (*GetInboundUserResponse, error)
-	GetInboundUsersCount(context.Context, *GetInboundUserRequest) (*GetInboundUsersCountResponse, error)
 	AddOutbound(context.Context, *AddOutboundRequest) (*AddOutboundResponse, error)
 	RemoveOutbound(context.Context, *RemoveOutboundRequest) (*RemoveOutboundResponse, error)
 	AlterOutbound(context.Context, *AlterOutboundRequest) (*AlterOutboundResponse, error)
@@ -162,12 +136,6 @@ func (UnimplementedHandlerServiceServer) RemoveInbound(context.Context, *RemoveI
 func (UnimplementedHandlerServiceServer) AlterInbound(context.Context, *AlterInboundRequest) (*AlterInboundResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AlterInbound not implemented")
 }
-func (UnimplementedHandlerServiceServer) GetInboundUsers(context.Context, *GetInboundUserRequest) (*GetInboundUserResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetInboundUsers not implemented")
-}
-func (UnimplementedHandlerServiceServer) GetInboundUsersCount(context.Context, *GetInboundUserRequest) (*GetInboundUsersCountResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetInboundUsersCount not implemented")
-}
 func (UnimplementedHandlerServiceServer) AddOutbound(context.Context, *AddOutboundRequest) (*AddOutboundResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AddOutbound not implemented")
 }
@@ -252,42 +220,6 @@ func _HandlerService_AlterInbound_Handler(srv interface{}, ctx context.Context,
 	return interceptor(ctx, in, info, handler)
 }

-func _HandlerService_GetInboundUsers_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(GetInboundUserRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(HandlerServiceServer).GetInboundUsers(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: HandlerService_GetInboundUsers_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(HandlerServiceServer).GetInboundUsers(ctx, req.(*GetInboundUserRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _HandlerService_GetInboundUsersCount_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(GetInboundUserRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(HandlerServiceServer).GetInboundUsersCount(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: HandlerService_GetInboundUsersCount_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(HandlerServiceServer).GetInboundUsersCount(ctx, req.(*GetInboundUserRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 func _HandlerService_AddOutbound_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(AddOutboundRequest)
 	if err := dec(in); err != nil {
@@ -361,14 +293,6 @@ var HandlerService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "AlterInbound",
 			Handler:    _HandlerService_AlterInbound_Handler,
 		},
-		{
-			MethodName: "GetInboundUsers",
-			Handler:    _HandlerService_GetInboundUsers_Handler,
-		},
-		{
-			MethodName: "GetInboundUsersCount",
-			Handler:    _HandlerService_GetInboundUsersCount_Handler,
-		},
 		{
 			MethodName: "AddOutbound",
 			Handler:    _HandlerService_AddOutbound_Handler,
--- a/app/proxyman/inbound/dynamic.go
+++ b/app/proxyman/inbound/dynamic.go
@@ -23,7 +23,7 @@ type DynamicInboundHandler struct {
 	receiverConfig *proxyman.ReceiverConfig
 	streamSettings *internet.MemoryStreamConfig
 	portMutex      sync.Mutex
-	portsInUse     map[net.Port]struct{}
+	portsInUse     map[net.Port]bool
 	workerMutex    sync.RWMutex
 	worker         []worker
 	lastRefresh    time.Time
@@ -39,7 +39,7 @@ func NewDynamicInboundHandler(ctx context.Context, tag string, receiverConfig *p
 		tag:            tag,
 		proxyConfig:    proxyConfig,
 		receiverConfig: receiverConfig,
-		portsInUse:     make(map[net.Port]struct{}),
+		portsInUse:     make(map[net.Port]bool),
 		mux:            mux.NewServer(ctx),
 		v:              v,
 		ctx:            ctx,
@@ -84,7 +84,7 @@ func (h *DynamicInboundHandler) allocatePort() net.Port {
 		port := net.Port(allPorts[r])
 		_, used := h.portsInUse[port]
 		if !used {
-			h.portsInUse[port] = struct{}{}
+			h.portsInUse[port] = true
 			return port
 		}
 	}
--- a/app/proxyman/inbound/inbound.go
+++ b/app/proxyman/inbound/inbound.go
@@ -7,14 +7,13 @@ import (
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/inbound"
 )

-// Manager manages all inbound handlers.
+// Manager is to manage all inbound handlers.
 type Manager struct {
 	access          sync.RWMutex
 	untaggedHandler []inbound.Handler
@@ -159,9 +158,6 @@ func NewHandler(ctx context.Context, config *core.InboundHandlerConfig) (inbound
 			Mark: streamSettings.SocketSettings.Mark,
 		})
 	}
-	if streamSettings != nil && streamSettings.ProtocolName == "splithttp" {
-		ctx = session.ContextWithAllowedNetwork(ctx, net.Network_UDP)
-	}

 	allocStrategy := receiverSettings.AllocationStrategy
 	if allocStrategy == nil || allocStrategy.Type == proxyman.AllocationStrategy_Always {
--- a/app/proxyman/inbound/worker.go
+++ b/app/proxyman/inbound/worker.go
@@ -324,7 +324,6 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 			if w.sniffingConfig != nil {
 				content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
 				content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
-				content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 				content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 				content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly
 			}
--- a/app/proxyman/outbound/handler.go
+++ b/app/proxyman/outbound/handler.go
@@ -11,8 +11,8 @@ import (

 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
@@ -54,7 +54,7 @@ func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter)
 	return uplinkCounter, downlinkCounter
 }

-// Handler implements outbound.Handler.
+// Handler is an implements of outbound.Handler.
 type Handler struct {
 	tag             string
 	senderSettings  *proxyman.SenderConfig
@@ -273,16 +273,7 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 			outbounds := session.OutboundsFromContext(ctx)
 			ob := outbounds[len(outbounds)-1]
 			if h.senderSettings.ViaCidr == "" {
-				if h.senderSettings.Via.AsAddress().Family().IsDomain() && h.senderSettings.Via.AsAddress().Domain() == "origin" {
-					if inbound := session.InboundFromContext(ctx); inbound != nil {
-						origin, _, err := net.SplitHostPort(inbound.Conn.LocalAddr().String())
-						if err == nil {
-							ob.Gateway = net.ParseAddress(origin)
-						}
-					}
-				} else {
-					ob.Gateway = h.senderSettings.Via.AsAddress()
-				}
+				ob.Gateway = h.senderSettings.Via.AsAddress()
 			} else { //Get a random address.
 				ob.Gateway = ParseRandomIPv6(h.senderSettings.Via.AsAddress(), h.senderSettings.ViaCidr)
 			}
--- a/app/router/balancing.go
+++ b/app/router/balancing.go
@@ -31,12 +31,6 @@ type RoundRobinStrategy struct {

 func (s *RoundRobinStrategy) InjectContext(ctx context.Context) {
 	s.ctx = ctx
-	if len(s.FallbackTag) > 0 {
-		common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
-			s.observatory = observatory
-			return nil
-		}))
-	}
 }

 func (s *RoundRobinStrategy) GetPrincipleTarget(strings []string) []string {
@@ -44,6 +38,12 @@ func (s *RoundRobinStrategy) GetPrincipleTarget(strings []string) []string {
 }

 func (s *RoundRobinStrategy) PickOutbound(tags []string) string {
+	if len(s.FallbackTag) > 0 && s.observatory == nil {
+		common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
+			s.observatory = observatory
+			return nil
+		}))
+	}
 	if s.observatory != nil {
 		observeReport, err := s.observatory.GetObservation(s.ctx)
 		if err == nil {
--- a/app/router/command/command.go
+++ b/app/router/command/command.go
@@ -135,7 +135,7 @@ func (s *service) Register(server *grpc.Server) {
 		vCoreDesc := RoutingService_ServiceDesc
 		vCoreDesc.ServiceName = "v2ray.core.app.router.command.RoutingService"
 		server.RegisterService(&vCoreDesc, rs)
-	}, false))
+	}))
 }

 func init() {
--- a/app/router/condition_geoip_test.go
+++ b/app/router/condition_geoip_test.go
@@ -1,7 +1,6 @@
 package router_test

 import (
-	"fmt"
 	"os"
 	"path/filepath"
 	"testing"
@@ -14,25 +13,16 @@ import (
 	"google.golang.org/protobuf/proto"
 )

-func getAssetPath(file string) (string, error) {
-	path := platform.GetAssetLocation(file)
-	_, err := os.Stat(path)
-	if os.IsNotExist(err) {
-		path := filepath.Join("..", "..", "resources", file)
-		_, err := os.Stat(path)
-		if os.IsNotExist(err) {
-			return "", fmt.Errorf("can't find %s in standard asset locations or {project_root}/resources", file)
-		}
-		if err != nil {
-			return "", fmt.Errorf("can't stat %s: %v", path, err)
-		}
-		return path, nil
-	}
-	if err != nil {
-		return "", fmt.Errorf("can't stat %s: %v", path, err)
-	}
+func init() {
+	wd, err := os.Getwd()
+	common.Must(err)

-	return path, nil
+	if _, err := os.Stat(platform.GetAssetLocation("geoip.dat")); err != nil && os.IsNotExist(err) {
+		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geoip.dat"), filepath.Join(wd, "..", "..", "resources", "geoip.dat")))
+	}
+	if _, err := os.Stat(platform.GetAssetLocation("geosite.dat")); err != nil && os.IsNotExist(err) {
+		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geosite.dat"), filepath.Join(wd, "..", "..", "resources", "geosite.dat")))
+	}
 }

 func TestGeoIPMatcherContainer(t *testing.T) {
@@ -227,15 +217,10 @@ func TestGeoIPMatcher6US(t *testing.T) {
 }

 func loadGeoIP(country string) ([]*router.CIDR, error) {
-	path, err := getAssetPath("geoip.dat")
+	geoipBytes, err := filesystem.ReadAsset("geoip.dat")
 	if err != nil {
 		return nil, err
 	}
-	geoipBytes, err := filesystem.ReadFile(path)
-	if err != nil {
-		return nil, err
-	}
-
 	var geoipList router.GeoIPList
 	if err := proto.Unmarshal(geoipBytes, &geoipList); err != nil {
 		return nil, err
--- a/app/router/condition_test.go
+++ b/app/router/condition_test.go
@@ -1,6 +1,8 @@
 package router_test

 import (
+	"os"
+	"path/filepath"
 	"strconv"
 	"testing"

@@ -8,6 +10,7 @@ import (
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/common/platform/filesystem"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/protocol/http"
@@ -17,6 +20,18 @@ import (
 	"google.golang.org/protobuf/proto"
 )

+func init() {
+	wd, err := os.Getwd()
+	common.Must(err)
+
+	if _, err := os.Stat(platform.GetAssetLocation("geoip.dat")); err != nil && os.IsNotExist(err) {
+		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geoip.dat"), filepath.Join(wd, "..", "..", "release", "config", "geoip.dat")))
+	}
+	if _, err := os.Stat(platform.GetAssetLocation("geosite.dat")); err != nil && os.IsNotExist(err) {
+		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geosite.dat"), filepath.Join(wd, "..", "..", "release", "config", "geosite.dat")))
+	}
+}
+
 func withBackground() routing.Context {
 	return &routing_session.Context{}
 }
@@ -301,15 +316,10 @@ func TestRoutingRule(t *testing.T) {
 }

 func loadGeoSite(country string) ([]*Domain, error) {
-	path, err := getAssetPath("geosite.dat")
+	geositeBytes, err := filesystem.ReadAsset("geosite.dat")
 	if err != nil {
 		return nil, err
 	}
-	geositeBytes, err := filesystem.ReadFile(path)
-	if err != nil {
-		return nil, err
-	}
-
 	var geositeList GeoSiteList
 	if err := proto.Unmarshal(geositeBytes, &geositeList); err != nil {
 		return nil, err
--- a/app/router/router_test.go
+++ b/app/router/router_test.go
@@ -177,7 +177,7 @@ func TestIPOnDemand(t *testing.T) {
 		IPv4Enable: true,
 		IPv6Enable: true,
 		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, uint32(600), nil).AnyTimes()
+	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()

 	r := new(Router)
 	common.Must(r.Init(context.TODO(), config, mockDNS, nil, nil))
@@ -222,7 +222,7 @@ func TestIPIfNonMatchDomain(t *testing.T) {
 		IPv4Enable: true,
 		IPv6Enable: true,
 		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, uint32(600), nil).AnyTimes()
+	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()

 	r := new(Router)
 	common.Must(r.Init(context.TODO(), config, mockDNS, nil, nil))
--- a/app/router/strategy_leastload.go
+++ b/app/router/strategy_leastload.go
@@ -58,12 +58,8 @@ type node struct {
 	RTTDeviationCost time.Duration
 }

-func (s *LeastLoadStrategy) InjectContext(ctx context.Context) {
-	s.ctx = ctx
-	common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
-		s.observer = observatory
-		return nil
-	}))
+func (l *LeastLoadStrategy) InjectContext(ctx context.Context) {
+	l.ctx = ctx
 }

 func (s *LeastLoadStrategy) PickOutbound(candidates []string) string {
@@ -140,8 +136,10 @@ func (s *LeastLoadStrategy) selectLeastLoad(nodes []*node) []*node {

 func (s *LeastLoadStrategy) getNodes(candidates []string, maxRTT time.Duration) []*node {
 	if s.observer == nil {
-		errors.LogError(s.ctx, "observer is nil")
-		return make([]*node, 0)
+		common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
+			s.observer = observatory
+			return nil
+		}))
 	}
 	observeResult, err := s.observer.GetObservation(s.ctx)
 	if err != nil {
--- a/app/router/strategy_leastload_test.go
+++ b/app/router/strategy_leastload_test.go
@@ -7,64 +7,64 @@ import (
 /*
 Split into multiple package, need to be tested separately

-	func TestSelectLeastLoad(t *testing.T) {
-		settings := &StrategyLeastLoadConfig{
-			HealthCheck: &HealthPingConfig{
-				SamplingCount: 10,
-			},
-			Expected: 1,
-			MaxRTT:   int64(time.Millisecond * time.Duration(800)),
-		}
-		strategy := NewLeastLoadStrategy(settings)
-		// std 40
-		strategy.PutResult("a", time.Millisecond*time.Duration(60))
-		strategy.PutResult("a", time.Millisecond*time.Duration(140))
-		strategy.PutResult("a", time.Millisecond*time.Duration(60))
-		strategy.PutResult("a", time.Millisecond*time.Duration(140))
-		// std 60
-		strategy.PutResult("b", time.Millisecond*time.Duration(40))
-		strategy.PutResult("b", time.Millisecond*time.Duration(160))
-		strategy.PutResult("b", time.Millisecond*time.Duration(40))
-		strategy.PutResult("b", time.Millisecond*time.Duration(160))
-		// std 0, but >MaxRTT
-		strategy.PutResult("c", time.Millisecond*time.Duration(1000))
-		strategy.PutResult("c", time.Millisecond*time.Duration(1000))
-		strategy.PutResult("c", time.Millisecond*time.Duration(1000))
-		strategy.PutResult("c", time.Millisecond*time.Duration(1000))
-		expected := "a"
-		actual := strategy.SelectAndPick([]string{"a", "b", "c", "untested"})
-		if actual != expected {
-			t.Errorf("expected: %v, actual: %v", expected, actual)
-		}
+func TestSelectLeastLoad(t *testing.T) {
+	settings := &StrategyLeastLoadConfig{
+		HealthCheck: &HealthPingConfig{
+			SamplingCount: 10,
+		},
+		Expected: 1,
+		MaxRTT:   int64(time.Millisecond * time.Duration(800)),
 	}
+	strategy := NewLeastLoadStrategy(settings)
+	// std 40
+	strategy.PutResult("a", time.Millisecond*time.Duration(60))
+	strategy.PutResult("a", time.Millisecond*time.Duration(140))
+	strategy.PutResult("a", time.Millisecond*time.Duration(60))
+	strategy.PutResult("a", time.Millisecond*time.Duration(140))
+	// std 60
+	strategy.PutResult("b", time.Millisecond*time.Duration(40))
+	strategy.PutResult("b", time.Millisecond*time.Duration(160))
+	strategy.PutResult("b", time.Millisecond*time.Duration(40))
+	strategy.PutResult("b", time.Millisecond*time.Duration(160))
+	// std 0, but >MaxRTT
+	strategy.PutResult("c", time.Millisecond*time.Duration(1000))
+	strategy.PutResult("c", time.Millisecond*time.Duration(1000))
+	strategy.PutResult("c", time.Millisecond*time.Duration(1000))
+	strategy.PutResult("c", time.Millisecond*time.Duration(1000))
+	expected := "a"
+	actual := strategy.SelectAndPick([]string{"a", "b", "c", "untested"})
+	if actual != expected {
+		t.Errorf("expected: %v, actual: %v", expected, actual)
+	}
+}

-	func TestSelectLeastLoadWithCost(t *testing.T) {
-		settings := &StrategyLeastLoadConfig{
-			HealthCheck: &HealthPingConfig{
-				SamplingCount: 10,
-			},
-			Costs: []*StrategyWeight{
-				{Match: "a", Value: 9},
-			},
-			Expected: 1,
-		}
-		strategy := NewLeastLoadStrategy(settings, nil)
-		// std 40, std+c 120
-		strategy.PutResult("a", time.Millisecond*time.Duration(60))
-		strategy.PutResult("a", time.Millisecond*time.Duration(140))
-		strategy.PutResult("a", time.Millisecond*time.Duration(60))
-		strategy.PutResult("a", time.Millisecond*time.Duration(140))
-		// std 60
-		strategy.PutResult("b", time.Millisecond*time.Duration(40))
-		strategy.PutResult("b", time.Millisecond*time.Duration(160))
-		strategy.PutResult("b", time.Millisecond*time.Duration(40))
-		strategy.PutResult("b", time.Millisecond*time.Duration(160))
-		expected := "b"
-		actual := strategy.SelectAndPick([]string{"a", "b", "untested"})
-		if actual != expected {
-			t.Errorf("expected: %v, actual: %v", expected, actual)
-		}
+func TestSelectLeastLoadWithCost(t *testing.T) {
+	settings := &StrategyLeastLoadConfig{
+		HealthCheck: &HealthPingConfig{
+			SamplingCount: 10,
+		},
+		Costs: []*StrategyWeight{
+			{Match: "a", Value: 9},
+		},
+		Expected: 1,
 	}
+	strategy := NewLeastLoadStrategy(settings, nil)
+	// std 40, std+c 120
+	strategy.PutResult("a", time.Millisecond*time.Duration(60))
+	strategy.PutResult("a", time.Millisecond*time.Duration(140))
+	strategy.PutResult("a", time.Millisecond*time.Duration(60))
+	strategy.PutResult("a", time.Millisecond*time.Duration(140))
+	// std 60
+	strategy.PutResult("b", time.Millisecond*time.Duration(40))
+	strategy.PutResult("b", time.Millisecond*time.Duration(160))
+	strategy.PutResult("b", time.Millisecond*time.Duration(40))
+	strategy.PutResult("b", time.Millisecond*time.Duration(160))
+	expected := "b"
+	actual := strategy.SelectAndPick([]string{"a", "b", "untested"})
+	if actual != expected {
+		t.Errorf("expected: %v, actual: %v", expected, actual)
+	}
+}
 */
 func TestSelectLeastExpected(t *testing.T) {
 	strategy := &LeastLoadStrategy{
--- a/app/router/strategy_leastping.go
+++ b/app/router/strategy_leastping.go
@@ -21,20 +21,19 @@ func (l *LeastPingStrategy) GetPrincipleTarget(strings []string) []string {

 func (l *LeastPingStrategy) InjectContext(ctx context.Context) {
 	l.ctx = ctx
-	common.Must(core.RequireFeatures(l.ctx, func(observatory extension.Observatory) error {
-		l.observatory = observatory
-		return nil
-	}))
 }

 func (l *LeastPingStrategy) PickOutbound(strings []string) string {
 	if l.observatory == nil {
-		errors.LogError(l.ctx, "observer is nil")
-		return ""
+		common.Must(core.RequireFeatures(l.ctx, func(observatory extension.Observatory) error {
+			l.observatory = observatory
+			return nil
+		}))
 	}
+
 	observeReport, err := l.observatory.GetObservation(l.ctx)
 	if err != nil {
-		errors.LogInfoInner(l.ctx, err, "cannot get observer report")
+		errors.LogInfoInner(l.ctx, err, "cannot get observe report")
 		return ""
 	}
 	outboundsList := outboundList(strings)
--- a/app/router/strategy_random.go
+++ b/app/router/strategy_random.go
@@ -11,7 +11,7 @@ import (
 )

 // RandomStrategy represents a random balancing strategy
-type RandomStrategy struct {
+type RandomStrategy struct{
 	FallbackTag string

 	ctx         context.Context
@@ -20,12 +20,6 @@ type RandomStrategy struct {

 func (s *RandomStrategy) InjectContext(ctx context.Context) {
 	s.ctx = ctx
-	if len(s.FallbackTag) > 0 {
-		common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
-			s.observatory = observatory
-			return nil
-		}))
-	}
 }

 func (s *RandomStrategy) GetPrincipleTarget(strings []string) []string {
@@ -33,6 +27,12 @@ func (s *RandomStrategy) GetPrincipleTarget(strings []string) []string {
 }

 func (s *RandomStrategy) PickOutbound(candidates []string) string {
+	if len(s.FallbackTag) > 0 && s.observatory == nil {
+		common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
+			s.observatory = observatory
+			return nil
+		}))
+	}
 	if s.observatory != nil {
 		observeReport, err := s.observatory.GetObservation(s.ctx)
 		if err == nil {
--- a/app/stats/command/command.go
+++ b/app/stats/command/command.go
@@ -46,38 +46,6 @@ func (s *statsServer) GetStats(ctx context.Context, request *GetStatsRequest) (*
 	}, nil
 }

-func (s *statsServer) GetStatsOnline(ctx context.Context, request *GetStatsRequest) (*GetStatsResponse, error) {
-	c := s.stats.GetOnlineMap(request.Name)
-	if c == nil {
-		return nil, errors.New(request.Name, " not found.")
-	}
-	value := int64(c.Count())
-	return &GetStatsResponse{
-		Stat: &Stat{
-			Name:  request.Name,
-			Value: value,
-		},
-	}, nil
-}
-
-func (s *statsServer) GetStatsOnlineIpList(ctx context.Context, request *GetStatsRequest) (*GetStatsOnlineIpListResponse, error) {
-	c := s.stats.GetOnlineMap(request.Name)
-
-	if c == nil {
-		return nil, errors.New(request.Name, " not found.")
-	}
-
-	ips := make(map[string]int64)
-	for ip, t := range c.IpTimeMap() {
-		ips[ip] = t.Unix()
-	}
-
-	return &GetStatsOnlineIpListResponse{
-		Name: request.Name,
-		Ips:  ips,
-	}, nil
-}
-
 func (s *statsServer) QueryStats(ctx context.Context, request *QueryStatsRequest) (*QueryStatsResponse, error) {
 	matcher, err := strmatcher.Substr.New(request.Pattern)
 	if err != nil {
--- a/app/stats/command/command.pb.go
+++ b/app/stats/command/command.pb.go
@@ -424,59 +424,6 @@ func (x *SysStatsResponse) GetUptime() uint32 {
 	return 0
 }

-type GetStatsOnlineIpListResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Name string           `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
-	Ips  map[string]int64 `protobuf:"bytes,2,rep,name=ips,proto3" json:"ips,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"varint,2,opt,name=value,proto3"`
-}
-
-func (x *GetStatsOnlineIpListResponse) Reset() {
-	*x = GetStatsOnlineIpListResponse{}
-	mi := &file_app_stats_command_command_proto_msgTypes[7]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *GetStatsOnlineIpListResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*GetStatsOnlineIpListResponse) ProtoMessage() {}
-
-func (x *GetStatsOnlineIpListResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[7]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use GetStatsOnlineIpListResponse.ProtoReflect.Descriptor instead.
-func (*GetStatsOnlineIpListResponse) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{7}
-}
-
-func (x *GetStatsOnlineIpListResponse) GetName() string {
-	if x != nil {
-		return x.Name
-	}
-	return ""
-}
-
-func (x *GetStatsOnlineIpListResponse) GetIps() map[string]int64 {
-	if x != nil {
-		return x.Ips
-	}
-	return nil
-}
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -485,7 +432,7 @@ type Config struct {

 func (x *Config) Reset() {
 	*x = Config{}
-	mi := &file_app_stats_command_command_proto_msgTypes[8]
+	mi := &file_app_stats_command_command_proto_msgTypes[7]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -497,7 +444,7 @@ func (x *Config) String() string {
 func (*Config) ProtoMessage() {}

 func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[8]
+	mi := &file_app_stats_command_command_proto_msgTypes[7]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -510,7 +457,7 @@ func (x *Config) ProtoReflect() protoreflect.Message {

 // Deprecated: Use Config.ProtoReflect.Descriptor instead.
 func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{8}
+	return file_app_stats_command_command_proto_rawDescGZIP(), []int{7}
 }

 var File_app_stats_command_command_proto protoreflect.FileDescriptor
@@ -559,60 +506,34 @@ var file_app_stats_command_command_proto_rawDesc = []byte{
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 }

 var (
@@ -627,38 +548,31 @@ func file_app_stats_command_command_proto_rawDescGZIP() []byte {
 	return file_app_stats_command_command_proto_rawDescData
 }

-var file_app_stats_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
+var file_app_stats_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
 var file_app_stats_command_command_proto_goTypes = []any{
-	(*GetStatsRequest)(nil),              // 0: xray.app.stats.command.GetStatsRequest
-	(*Stat)(nil),                         // 1: xray.app.stats.command.Stat
-	(*GetStatsResponse)(nil),             // 2: xray.app.stats.command.GetStatsResponse
-	(*QueryStatsRequest)(nil),            // 3: xray.app.stats.command.QueryStatsRequest
-	(*QueryStatsResponse)(nil),           // 4: xray.app.stats.command.QueryStatsResponse
-	(*SysStatsRequest)(nil),              // 5: xray.app.stats.command.SysStatsRequest
-	(*SysStatsResponse)(nil),             // 6: xray.app.stats.command.SysStatsResponse
-	(*GetStatsOnlineIpListResponse)(nil), // 7: xray.app.stats.command.GetStatsOnlineIpListResponse
-	(*Config)(nil),                       // 8: xray.app.stats.command.Config
-	nil,                                  // 9: xray.app.stats.command.GetStatsOnlineIpListResponse.IpsEntry
+	(*GetStatsRequest)(nil),    // 0: xray.app.stats.command.GetStatsRequest
+	(*Stat)(nil),               // 1: xray.app.stats.command.Stat
+	(*GetStatsResponse)(nil),   // 2: xray.app.stats.command.GetStatsResponse
+	(*QueryStatsRequest)(nil),  // 3: xray.app.stats.command.QueryStatsRequest
+	(*QueryStatsResponse)(nil), // 4: xray.app.stats.command.QueryStatsResponse
+	(*SysStatsRequest)(nil),    // 5: xray.app.stats.command.SysStatsRequest
+	(*SysStatsResponse)(nil),   // 6: xray.app.stats.command.SysStatsResponse
+	(*Config)(nil),             // 7: xray.app.stats.command.Config
 }
 var file_app_stats_command_command_proto_depIdxs = []int32{
 	1, // 0: xray.app.stats.command.GetStatsResponse.stat:type_name -> xray.app.stats.command.Stat
 	1, // 1: xray.app.stats.command.QueryStatsResponse.stat:type_name -> xray.app.stats.command.Stat
-	9, // 2: xray.app.stats.command.GetStatsOnlineIpListResponse.ips:type_name -> xray.app.stats.command.GetStatsOnlineIpListResponse.IpsEntry
-	0, // 3: xray.app.stats.command.StatsService.GetStats:input_type -> xray.app.stats.command.GetStatsRequest
-	0, // 4: xray.app.stats.command.StatsService.GetStatsOnline:input_type -> xray.app.stats.command.GetStatsRequest
-	3, // 5: xray.app.stats.command.StatsService.QueryStats:input_type -> xray.app.stats.command.QueryStatsRequest
-	5, // 6: xray.app.stats.command.StatsService.GetSysStats:input_type -> xray.app.stats.command.SysStatsRequest
-	0, // 7: xray.app.stats.command.StatsService.GetStatsOnlineIpList:input_type -> xray.app.stats.command.GetStatsRequest
-	2, // 8: xray.app.stats.command.StatsService.GetStats:output_type -> xray.app.stats.command.GetStatsResponse
-	2, // 9: xray.app.stats.command.StatsService.GetStatsOnline:output_type -> xray.app.stats.command.GetStatsResponse
-	4, // 10: xray.app.stats.command.StatsService.QueryStats:output_type -> xray.app.stats.command.QueryStatsResponse
-	6, // 11: xray.app.stats.command.StatsService.GetSysStats:output_type -> xray.app.stats.command.SysStatsResponse
-	7, // 12: xray.app.stats.command.StatsService.GetStatsOnlineIpList:output_type -> xray.app.stats.command.GetStatsOnlineIpListResponse
-	8, // [8:13] is the sub-list for method output_type
-	3, // [3:8] is the sub-list for method input_type
-	3, // [3:3] is the sub-list for extension type_name
-	3, // [3:3] is the sub-list for extension extendee
-	0, // [0:3] is the sub-list for field type_name
+	0, // 2: xray.app.stats.command.StatsService.GetStats:input_type -> xray.app.stats.command.GetStatsRequest
+	3, // 3: xray.app.stats.command.StatsService.QueryStats:input_type -> xray.app.stats.command.QueryStatsRequest
+	5, // 4: xray.app.stats.command.StatsService.GetSysStats:input_type -> xray.app.stats.command.SysStatsRequest
+	2, // 5: xray.app.stats.command.StatsService.GetStats:output_type -> xray.app.stats.command.GetStatsResponse
+	4, // 6: xray.app.stats.command.StatsService.QueryStats:output_type -> xray.app.stats.command.QueryStatsResponse
+	6, // 7: xray.app.stats.command.StatsService.GetSysStats:output_type -> xray.app.stats.command.SysStatsResponse
+	5, // [5:8] is the sub-list for method output_type
+	2, // [2:5] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
 }

 func init() { file_app_stats_command_command_proto_init() }
@@ -672,7 +586,7 @@ func file_app_stats_command_command_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_stats_command_command_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   10,
+			NumMessages:   8,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
--- a/app/stats/command/command.proto
+++ b/app/stats/command/command.proto
@@ -46,17 +46,10 @@ message SysStatsResponse {
  uint32 Uptime = 10;
 }

-message GetStatsOnlineIpListResponse {
-  string name = 1;
-  map<string, int64> ips = 2;
-}
-
 service StatsService {
  rpc GetStats(GetStatsRequest) returns (GetStatsResponse) {}
-  rpc GetStatsOnline(GetStatsRequest) returns (GetStatsResponse) {}
  rpc QueryStats(QueryStatsRequest) returns (QueryStatsResponse) {}
  rpc GetSysStats(SysStatsRequest) returns (SysStatsResponse) {}
-  rpc GetStatsOnlineIpList(GetStatsRequest) returns (GetStatsOnlineIpListResponse) {}
 }

 message Config {}
--- a/app/stats/command/command_grpc.pb.go
+++ b/app/stats/command/command_grpc.pb.go
@@ -19,11 +19,9 @@ import (
 const _ = grpc.SupportPackageIsVersion9

 const (
-	StatsService_GetStats_FullMethodName             = "/xray.app.stats.command.StatsService/GetStats"
-	StatsService_GetStatsOnline_FullMethodName       = "/xray.app.stats.command.StatsService/GetStatsOnline"
-	StatsService_QueryStats_FullMethodName           = "/xray.app.stats.command.StatsService/QueryStats"
-	StatsService_GetSysStats_FullMethodName          = "/xray.app.stats.command.StatsService/GetSysStats"
-	StatsService_GetStatsOnlineIpList_FullMethodName = "/xray.app.stats.command.StatsService/GetStatsOnlineIpList"
+	StatsService_GetStats_FullMethodName    = "/xray.app.stats.command.StatsService/GetStats"
+	StatsService_QueryStats_FullMethodName  = "/xray.app.stats.command.StatsService/QueryStats"
+	StatsService_GetSysStats_FullMethodName = "/xray.app.stats.command.StatsService/GetSysStats"
 )

 // StatsServiceClient is the client API for StatsService service.
@@ -31,10 +29,8 @@ const (
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type StatsServiceClient interface {
 	GetStats(ctx context.Context, in *GetStatsRequest, opts ...grpc.CallOption) (*GetStatsResponse, error)
-	GetStatsOnline(ctx context.Context, in *GetStatsRequest, opts ...grpc.CallOption) (*GetStatsResponse, error)
 	QueryStats(ctx context.Context, in *QueryStatsRequest, opts ...grpc.CallOption) (*QueryStatsResponse, error)
 	GetSysStats(ctx context.Context, in *SysStatsRequest, opts ...grpc.CallOption) (*SysStatsResponse, error)
-	GetStatsOnlineIpList(ctx context.Context, in *GetStatsRequest, opts ...grpc.CallOption) (*GetStatsOnlineIpListResponse, error)
 }

 type statsServiceClient struct {
@@ -55,16 +51,6 @@ func (c *statsServiceClient) GetStats(ctx context.Context, in *GetStatsRequest,
 	return out, nil
 }

-func (c *statsServiceClient) GetStatsOnline(ctx context.Context, in *GetStatsRequest, opts ...grpc.CallOption) (*GetStatsResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(GetStatsResponse)
-	err := c.cc.Invoke(ctx, StatsService_GetStatsOnline_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 func (c *statsServiceClient) QueryStats(ctx context.Context, in *QueryStatsRequest, opts ...grpc.CallOption) (*QueryStatsResponse, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(QueryStatsResponse)
@@ -85,25 +71,13 @@ func (c *statsServiceClient) GetSysStats(ctx context.Context, in *SysStatsReques
 	return out, nil
 }

-func (c *statsServiceClient) GetStatsOnlineIpList(ctx context.Context, in *GetStatsRequest, opts ...grpc.CallOption) (*GetStatsOnlineIpListResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(GetStatsOnlineIpListResponse)
-	err := c.cc.Invoke(ctx, StatsService_GetStatsOnlineIpList_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 // StatsServiceServer is the server API for StatsService service.
 // All implementations must embed UnimplementedStatsServiceServer
 // for forward compatibility.
 type StatsServiceServer interface {
 	GetStats(context.Context, *GetStatsRequest) (*GetStatsResponse, error)
-	GetStatsOnline(context.Context, *GetStatsRequest) (*GetStatsResponse, error)
 	QueryStats(context.Context, *QueryStatsRequest) (*QueryStatsResponse, error)
 	GetSysStats(context.Context, *SysStatsRequest) (*SysStatsResponse, error)
-	GetStatsOnlineIpList(context.Context, *GetStatsRequest) (*GetStatsOnlineIpListResponse, error)
 	mustEmbedUnimplementedStatsServiceServer()
 }

@@ -117,18 +91,12 @@ type UnimplementedStatsServiceServer struct{}
 func (UnimplementedStatsServiceServer) GetStats(context.Context, *GetStatsRequest) (*GetStatsResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetStats not implemented")
 }
-func (UnimplementedStatsServiceServer) GetStatsOnline(context.Context, *GetStatsRequest) (*GetStatsResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetStatsOnline not implemented")
-}
 func (UnimplementedStatsServiceServer) QueryStats(context.Context, *QueryStatsRequest) (*QueryStatsResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method QueryStats not implemented")
 }
 func (UnimplementedStatsServiceServer) GetSysStats(context.Context, *SysStatsRequest) (*SysStatsResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetSysStats not implemented")
 }
-func (UnimplementedStatsServiceServer) GetStatsOnlineIpList(context.Context, *GetStatsRequest) (*GetStatsOnlineIpListResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetStatsOnlineIpList not implemented")
-}
 func (UnimplementedStatsServiceServer) mustEmbedUnimplementedStatsServiceServer() {}
 func (UnimplementedStatsServiceServer) testEmbeddedByValue()                      {}

@@ -168,24 +136,6 @@ func _StatsService_GetStats_Handler(srv interface{}, ctx context.Context, dec fu
 	return interceptor(ctx, in, info, handler)
 }

-func _StatsService_GetStatsOnline_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(GetStatsRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(StatsServiceServer).GetStatsOnline(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: StatsService_GetStatsOnline_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(StatsServiceServer).GetStatsOnline(ctx, req.(*GetStatsRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 func _StatsService_QueryStats_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(QueryStatsRequest)
 	if err := dec(in); err != nil {
@@ -222,24 +172,6 @@ func _StatsService_GetSysStats_Handler(srv interface{}, ctx context.Context, dec
 	return interceptor(ctx, in, info, handler)
 }

-func _StatsService_GetStatsOnlineIpList_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(GetStatsRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(StatsServiceServer).GetStatsOnlineIpList(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: StatsService_GetStatsOnlineIpList_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(StatsServiceServer).GetStatsOnlineIpList(ctx, req.(*GetStatsRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 // StatsService_ServiceDesc is the grpc.ServiceDesc for StatsService service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -251,10 +183,6 @@ var StatsService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "GetStats",
 			Handler:    _StatsService_GetStats_Handler,
 		},
-		{
-			MethodName: "GetStatsOnline",
-			Handler:    _StatsService_GetStatsOnline_Handler,
-		},
 		{
 			MethodName: "QueryStats",
 			Handler:    _StatsService_QueryStats_Handler,
@@ -263,10 +191,6 @@ var StatsService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "GetSysStats",
 			Handler:    _StatsService_GetSysStats_Handler,
 		},
-		{
-			MethodName: "GetStatsOnlineIpList",
-			Handler:    _StatsService_GetStatsOnlineIpList_Handler,
-		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "app/stats/command/command.proto",
--- a/app/stats/online_map.go
+++ b/app/stats/online_map.go
@@ -1,90 +0,0 @@
-package stats
-
-import (
-	"sync"
-	"time"
-)
-
-// OnlineMap is an implementation of stats.OnlineMap.
-type OnlineMap struct {
-	value         int
-	ipList        map[string]time.Time
-	access        sync.RWMutex
-	lastCleanup   time.Time
-	cleanupPeriod time.Duration
-}
-
-// NewOnlineMap creates a new instance of OnlineMap.
-func NewOnlineMap() *OnlineMap {
-	return &OnlineMap{
-		ipList:        make(map[string]time.Time),
-		lastCleanup:   time.Now(),
-		cleanupPeriod: 10 * time.Second,
-	}
-}
-
-// Count implements stats.OnlineMap.
-func (c *OnlineMap) Count() int {
-	return c.value
-}
-
-// List implements stats.OnlineMap.
-func (c *OnlineMap) List() []string {
-	return c.GetKeys()
-}
-
-// AddIP implements stats.OnlineMap.
-func (c *OnlineMap) AddIP(ip string) {
-	list := c.ipList
-
-	if ip == "127.0.0.1" {
-		return
-	}
-	c.access.Lock()
-	if _, ok := list[ip]; !ok {
-		list[ip] = time.Now()
-	}
-	c.access.Unlock()
-	if time.Since(c.lastCleanup) > c.cleanupPeriod {
-		list = c.RemoveExpiredIPs(list)
-		c.lastCleanup = time.Now()
-	}
-
-	c.value = len(list)
-	c.ipList = list
-}
-
-func (c *OnlineMap) GetKeys() []string {
-	c.access.RLock()
-	defer c.access.RUnlock()
-
-	keys := []string{}
-	for k := range c.ipList {
-		keys = append(keys, k)
-	}
-	return keys
-}
-
-func (c *OnlineMap) RemoveExpiredIPs(list map[string]time.Time) map[string]time.Time {
-	c.access.Lock()
-	defer c.access.Unlock()
-
-	now := time.Now()
-	for k, t := range list {
-		diff := now.Sub(t)
-		if diff.Seconds() > 20 {
-			delete(list, k)
-		}
-	}
-	return list
-}
-
-func (c *OnlineMap) IpTimeMap() map[string]time.Time {
-	list := c.ipList
-	if time.Since(c.lastCleanup) > c.cleanupPeriod {
-		list = c.RemoveExpiredIPs(list)
-		c.lastCleanup = time.Now()
-	}
-
-	return c.ipList
-}
--- a/app/stats/stats.go
+++ b/app/stats/stats.go
@@ -11,19 +11,17 @@ import (

 // Manager is an implementation of stats.Manager.
 type Manager struct {
-	access    sync.RWMutex
-	counters  map[string]*Counter
-	onlineMap map[string]*OnlineMap
-	channels  map[string]*Channel
-	running   bool
+	access   sync.RWMutex
+	counters map[string]*Counter
+	channels map[string]*Channel
+	running  bool
 }

 // NewManager creates an instance of Statistics Manager.
 func NewManager(ctx context.Context, config *Config) (*Manager, error) {
 	m := &Manager{
-		counters:  make(map[string]*Counter),
-		onlineMap: make(map[string]*OnlineMap),
-		channels:  make(map[string]*Channel),
+		counters: make(map[string]*Counter),
+		channels: make(map[string]*Channel),
 	}

 	return m, nil
@@ -83,43 +81,6 @@ func (m *Manager) VisitCounters(visitor func(string, stats.Counter) bool) {
 	}
 }

-// RegisterOnlineMap implements stats.Manager.
-func (m *Manager) RegisterOnlineMap(name string) (stats.OnlineMap, error) {
-	m.access.Lock()
-	defer m.access.Unlock()
-
-	if _, found := m.onlineMap[name]; found {
-		return nil, errors.New("onlineMap ", name, " already registered.")
-	}
-	errors.LogDebug(context.Background(), "create new onlineMap ", name)
-	om := NewOnlineMap()
-	m.onlineMap[name] = om
-	return om, nil
-}
-
-// UnregisterOnlineMap implements stats.Manager.
-func (m *Manager) UnregisterOnlineMap(name string) error {
-	m.access.Lock()
-	defer m.access.Unlock()
-
-	if _, found := m.onlineMap[name]; found {
-		errors.LogDebug(context.Background(), "remove onlineMap ", name)
-		delete(m.onlineMap, name)
-	}
-	return nil
-}
-
-// GetOnlineMap implements stats.Manager.
-func (m *Manager) GetOnlineMap(name string) stats.OnlineMap {
-	m.access.RLock()
-	defer m.access.RUnlock()
-
-	if om, found := m.onlineMap[name]; found {
-		return om
-	}
-	return nil
-}
-
 // RegisterChannel implements stats.Manager.
 func (m *Manager) RegisterChannel(name string) (stats.Channel, error) {
 	m.access.Lock()
--- a/common/buf/buffer.go
+++ b/common/buf/buffer.go
@@ -218,7 +218,7 @@ func (b *Buffer) Cap() int32 {
 // NewWithSize creates a Buffer with 0 length and capacity with at least the given size.
 func NewWithSize(size int32) *Buffer {
 	return &Buffer{
-		v: bytespool.Alloc(size),
+		v:         bytespool.Alloc(size),
 	}
 }

--- a/common/common.go
+++ b/common/common.go
@@ -38,7 +38,7 @@ func Error2(v interface{}, err error) error {
 func envFile() (string, error) {
 	if file := os.Getenv("GOENV"); file != "" {
 		if file == "off" {
-			return "", errors.New("GOENV=off")
+			return "", fmt.Errorf("GOENV=off")
 		}
 		return file, nil
 	}
@@ -47,7 +47,7 @@ func envFile() (string, error) {
 		return "", err
 	}
 	if dir == "" {
-		return "", errors.New("missing user-config dir")
+		return "", fmt.Errorf("missing user-config dir")
 	}
 	return filepath.Join(dir, "go", "env"), nil
 }
@@ -60,7 +60,7 @@ func GetRuntimeEnv(key string) (string, error) {
 		return "", err
 	}
 	if file == "" {
-		return "", errors.New("missing runtime env file")
+		return "", fmt.Errorf("missing runtime env file")
 	}
 	var data []byte
 	var runtimeEnv string
--- a/common/crypto/crypto.go
+++ b/common/crypto/crypto.go
@@ -1,15 +1,2 @@
 // Package crypto provides common crypto libraries for Xray.
 package crypto // import "github.com/xtls/xray-core/common/crypto"
-
-import (
-	"crypto/rand"
-	"math/big"
-)
-
-func RandBetween(from int64, to int64) int64 {
-	if from == to {
-		return from
-	}
-	bigInt, _ := rand.Int(rand.Reader, big.NewInt(to-from))
-	return from + bigInt.Int64()
-}
--- a/common/ctx/context.go
+++ b/common/ctx/context.go
@@ -7,7 +7,7 @@ type SessionKey int
 // ID of a session.
 type ID uint32

-const (
+const(
 	idSessionKey SessionKey = 0
 )

--- a/common/log/logger.go
+++ b/common/log/logger.go
@@ -146,7 +146,7 @@ func (w *fileLogWriter) Close() error {
 func CreateStdoutLogWriter() WriterCreator {
 	return func() Writer {
 		return &consoleLogWriter{
-			logger: log.New(os.Stdout, "", log.Ldate|log.Ltime|log.Lmicroseconds),
+			logger: log.New(os.Stdout, "", log.Ldate|log.Ltime),
 		}
 	}
 }
@@ -155,7 +155,7 @@ func CreateStdoutLogWriter() WriterCreator {
 func CreateStderrLogWriter() WriterCreator {
 	return func() Writer {
 		return &consoleLogWriter{
-			logger: log.New(os.Stderr, "", log.Ldate|log.Ltime|log.Lmicroseconds),
+			logger: log.New(os.Stderr, "", log.Ldate|log.Ltime),
 		}
 	}
 }
@@ -174,7 +174,7 @@ func CreateFileLogWriter(path string) (WriterCreator, error) {
 		}
 		return &fileLogWriter{
 			file:   file,
-			logger: log.New(file, "", log.Ldate|log.Ltime|log.Lmicroseconds),
+			logger: log.New(file, "", log.Ldate|log.Ltime),
 		}
 	}, nil
 }
--- a/common/log/logger_test.go
+++ b/common/log/logger_test.go
@@ -16,7 +16,6 @@ func TestFileLogger(t *testing.T) {
 	common.Must(err)
 	path := f.Name()
 	common.Must(f.Close())
-	defer os.Remove(path)

 	creator, err := CreateFileLogWriter(path)
 	common.Must(err)
--- a/common/mux/server.go
+++ b/common/mux/server.go
@@ -120,7 +120,7 @@ func (w *ServerWorker) handleStatusKeepAlive(meta *FrameMetadata, reader *buf.Bu
 func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata, reader *buf.BufferedReader) error {
 	// deep-clone outbounds because it is going to be mutated concurrently
 	// (Target and OriginalTarget)
-	ctx = session.ContextCloneOutboundsAndContent(ctx)
+	ctx = session.ContextCloneOutbounds(ctx)
 	errors.LogInfo(ctx, "received request for ", meta.Target)
 	{
 		msg := &log.AccessMessage{
--- a/common/net/net.go
+++ b/common/net/net.go
@@ -1,14 +1,2 @@
 // Package net is a drop-in replacement to Golang's net package, with some more functionalities.
 package net // import "github.com/xtls/xray-core/common/net"
-
-import "time"
-
-// defines the maximum time an idle TCP session can survive in the tunnel, so
-// it should be consistent across HTTP versions and with other transports.
-const ConnIdleTimeout = 300 * time.Second
-
-// consistent with quic-go
-const QuicgoH3KeepAlivePeriod = 10 * time.Second
-
-// consistent with chrome
-const ChromeH2KeepAlivePeriod = 45 * time.Second
--- a/common/net/system.go
+++ b/common/net/system.go
@@ -76,9 +76,8 @@ type (
 )

 var (
-	ResolveTCPAddr  = net.ResolveTCPAddr
-	ResolveUDPAddr  = net.ResolveUDPAddr
 	ResolveUnixAddr = net.ResolveUnixAddr
+	ResolveUDPAddr  = net.ResolveUDPAddr
 )

 type Resolver = net.Resolver
--- a/common/platform/filesystem/file.go
+++ b/common/platform/filesystem/file.go
@@ -3,7 +3,6 @@ package filesystem
 import (
 	"io"
 	"os"
-	"path/filepath"

 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/platform"
@@ -29,13 +28,6 @@ func ReadAsset(file string) ([]byte, error) {
 	return ReadFile(platform.GetAssetLocation(file))
 }

-func ReadCert(file string) ([]byte, error) {
-	if filepath.IsAbs(file) {
-		return ReadFile(file)
-	}
-	return ReadFile(platform.GetCertLocation(file))
-}
-
 func CopyFile(dst string, src string) error {
 	bytes, err := ReadFile(src)
 	if err != nil {
--- a/common/platform/others.go
+++ b/common/platform/others.go
@@ -21,7 +21,7 @@ func GetToolLocation(file string) string {
 	return filepath.Join(toolPath, file)
 }

-// GetAssetLocation searches for `file` in the env dir, the executable dir, and certain locations
+// GetAssetLocation searches for `file` in certain locations
 func GetAssetLocation(file string) string {
 	assetPath := NewEnvFlag(AssetLocation).GetValue(getExecutableDir)
 	defPath := filepath.Join(assetPath, file)
@@ -42,9 +42,3 @@ func GetAssetLocation(file string) string {
 	// asset not found, let the caller throw out the error
 	return defPath
 }
-
-// GetCertLocation searches for `file` in the env dir and the executable dir
-func GetCertLocation(file string) string {
-	certPath := NewEnvFlag(CertLocation).GetValue(getExecutableDir)
-	return filepath.Join(certPath, file)
-}
--- a/common/platform/platform.go
+++ b/common/platform/platform.go
@@ -13,7 +13,6 @@ const (
 	ConfdirLocation = "xray.location.confdir"
 	ToolLocation    = "xray.location.tool"
 	AssetLocation   = "xray.location.asset"
-	CertLocation    = "xray.location.cert"

 	UseReadV         = "xray.buf.readv"
 	UseFreedomSplice = "xray.buf.splice"
--- a/common/platform/windows.go
+++ b/common/platform/windows.go
@@ -19,14 +19,8 @@ func GetToolLocation(file string) string {
 	return filepath.Join(toolPath, file+".exe")
 }

-// GetAssetLocation searches for `file` in the env dir and the executable dir
+// GetAssetLocation searches for `file` in the executable dir
 func GetAssetLocation(file string) string {
 	assetPath := NewEnvFlag(AssetLocation).GetValue(getExecutableDir)
 	return filepath.Join(assetPath, file)
 }
-
-// GetCertLocation searches for `file` in the env dir and the executable dir
-func GetCertLocation(file string) string {
-	certPath := NewEnvFlag(CertLocation).GetValue(getExecutableDir)
-	return filepath.Join(certPath, file)
-}
--- a/common/protocol/account.go
+++ b/common/protocol/account.go
@@ -1,11 +1,8 @@
 package protocol

-import "google.golang.org/protobuf/proto"
-
 // Account is a user identity used for authentication.
 type Account interface {
 	Equals(Account) bool
-	ToProto() proto.Message
 }

 // AsAccount is an object can be converted into account.
--- a/common/protocol/http/sniff.go
+++ b/common/protocol/http/sniff.go
@@ -63,7 +63,7 @@ func SniffHTTP(b []byte, c context.Context) (*SniffHeader, error) {
 	ShouldSniffAttr := true
 	// If content.Attributes have information, that means it comes from HTTP inbound PlainHTTP mode.
 	// It will set attributes, so skip it.
-	if content == nil || len(content.Attributes) != 0 {
+	if content == nil || content.AttributeLen() != 0 {
 		ShouldSniffAttr = false
 	}
 	if err := beginWithHTTPMethod(b); err != nil {
--- a/common/protocol/quic/sniff.go
+++ b/common/protocol/quic/sniff.go
@@ -1,14 +1,13 @@
 package quic

 import (
-	"context"
 	"crypto"
 	"crypto/aes"
 	"crypto/tls"
 	"encoding/binary"
 	"io"

-	"github.com/quic-go/quic-go/quicvarint"
+	"github.com/refraction-networking/uquic/quicvarint"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/bytespool"
@@ -47,18 +46,7 @@ var (
 	errNotQuicInitial = errors.New("not initial packet")
 )

-func SniffQUIC(b []byte) (resultReturn *SniffHeader, errorReturn error) {
-	// In extremely rare cases, this sniffer may cause slice error
-	// and we set recover() here to prevent crash.
-	// TODO: Thoroughly fix this panic
-	defer func() {
-		if r := recover(); r != nil {
-			errors.LogError(context.Background(), "Failed to sniff QUIC: ", r)
-			resultReturn = nil
-			errorReturn = common.ErrNoClue
-		}
-	}()
-
+func SniffQUIC(b []byte) (*SniffHeader, error) {
 	// Crypto data separated across packets
 	cryptoLen := 0
 	cryptoData := bytespool.Alloc(int32(len(b)))
--- a/common/protocol/tls/cert/.gitignore
+++ b/common/protocol/tls/cert/.gitignore
@@ -0,0 +1 @@
+*.pem
--- a/common/protocol/tls/cert/cert_test.go
+++ b/common/protocol/tls/cert/cert_test.go
@@ -78,9 +78,9 @@ func printJSON(certificate *Certificate) {
 func printFile(certificate *Certificate, name string) error {
 	certPEM, keyPEM := certificate.ToPEM()
 	return task.Run(context.Background(), func() error {
-		return writeFile(certPEM, name+".crt")
+		return writeFile(certPEM, name+"_cert.pem")
 	}, func() error {
-		return writeFile(keyPEM, name+".key")
+		return writeFile(keyPEM, name+"_key.pem")
 	})
 }

--- a/common/protocol/user.go
+++ b/common/protocol/user.go
@@ -1,13 +1,10 @@
 package protocol

-import (
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/serial"
-)
+import "github.com/xtls/xray-core/common/errors"

 func (u *User) GetTypedAccount() (Account, error) {
 	if u.GetAccount() == nil {
-		return nil, errors.New("Account is missing").AtWarning()
+		return nil, errors.New("Account missing").AtWarning()
 	}

 	rawAccount, err := u.Account.GetInstance()
@@ -35,17 +32,6 @@ func (u *User) ToMemoryUser() (*MemoryUser, error) {
 	}, nil
 }

-func ToProtoUser(mu *MemoryUser) *User {
-	if mu == nil {
-		return nil
-	}
-	return &User{
-		Account: serial.ToTypedMessage(mu.Account.ToProto()),
-		Email:   mu.Email,
-		Level:   mu.Level,
-	}
-}
-
 // MemoryUser is a parsed form of User, to reduce number of parsing of Account proto.
 type MemoryUser struct {
 	// Account is the parsed account of the protocol.
--- a/common/reflect/marshal.go
+++ b/common/reflect/marshal.go
@@ -22,12 +22,12 @@ func MarshalToJson(v interface{}, insertTypeInfo bool) (string, bool) {
 }

 func JSONMarshalWithoutEscape(t interface{}) ([]byte, error) {
-	buffer := &bytes.Buffer{}
-	encoder := json.NewEncoder(buffer)
-	encoder.SetIndent("", "    ")
-	encoder.SetEscapeHTML(false)
-	err := encoder.Encode(t)
-	return buffer.Bytes(), err
+    buffer := &bytes.Buffer{}
+    encoder := json.NewEncoder(buffer)
+    encoder.SetIndent("", "    ")
+    encoder.SetEscapeHTML(false)
+    err := encoder.Encode(t)
+    return buffer.Bytes(), err
 }

 func marshalTypedMessage(v *cserial.TypedMessage, ignoreNullValue bool, insertTypeInfo bool) interface{} {
@@ -58,9 +58,7 @@ func marshalSlice(v reflect.Value, ignoreNullValue bool, insertTypeInfo bool) in
 }

 func isNullValue(f reflect.StructField, rv reflect.Value) bool {
-	if rv.Kind() == reflect.Struct {
-		return false
-	} else if rv.Kind() == reflect.String && rv.Len() == 0 {
+	if rv.Kind() == reflect.String && rv.Len() == 0 {
 		return true
 	} else if !isValueKind(rv.Kind()) && rv.IsNil() {
 		return true
@@ -186,12 +184,6 @@ func marshalKnownType(v interface{}, ignoreNullValue bool, insertTypeInfo bool)
 	case *conf.PortList:
 		cpl := v.(*conf.PortList)
 		return serializePortList(cpl.Build())
-	case conf.Int32Range:
-		i32rng := v.(conf.Int32Range)
-		if i32rng.Left == i32rng.Right {
-			return i32rng.Left, true
-		}
-		return i32rng.String(), true
 	case cnet.Address:
 		if addr := v.(cnet.Address); addr != nil {
 			return addr.String(), true
--- a/common/reflect/marshal_test.go
+++ b/common/reflect/marshal_test.go
@@ -116,129 +116,100 @@ func TestMarshalConfigJson(t *testing.T) {
 		"system",
 		"inboundDownlink",
 		"outboundUplink",
-		"XHTTP_IN",
-		"\"host\": \"bing.com\"",
-		"scMaxEachPostBytes",
-		"\"from\": 100",
-		"\"to\": 1000",
-		"\"from\": 1000000",
-		"\"to\": 1000000",
 	}
 	for _, kw := range keywords {
 		if !strings.Contains(tc, kw) {
-			t.Log("config.json:", tc)
-			t.Error("keyword not found:", kw)
-			break
+			t.Error("marshaled config error")
 		}
 	}
 }

 func getConfig() string {
 	return `{
-  "log": {
-    "loglevel": "debug"
-  },
-  "stats": {},
-  "policy": {
-    "levels": {
-      "0": {
-        "statsUserUplink": true,
-        "statsUserDownlink": true
-      }
-    },
-    "system": {
-      "statsInboundUplink": true,
-      "statsInboundDownlink": true,
-      "statsOutboundUplink": true,
-      "statsOutboundDownlink": true
-    }
-  },
-  "inbounds": [
-    {
-      "tag": "agentin",
-      "protocol": "http",
-      "port": 18080,
-      "listen": "127.0.0.1",
-      "settings": {}
-    },
-    {
-      "listen": "127.0.0.1",
-      "port": 10085,
-      "protocol": "dokodemo-door",
-      "settings": {
-        "address": "127.0.0.1"
-      },
-      "tag": "api-in"
-    }
-  ],
-  "api": {
-    "tag": "api",
-    "services": [
-      "HandlerService",
-      "StatsService"
-    ]
-  },
-  "routing": {
-    "rules": [
-      {
-        "inboundTag": [
-          "api-in"
-        ],
-        "outboundTag": "api",
-        "type": "field"
-      }
-    ],
-    "domainStrategy": "AsIs"
-  },
-  "outbounds": [
-    {
-      "protocol": "vless",
-      "settings": {
-        "vnext": [
-          {
-            "address": "1.2.3.4",
-            "port": 1234,
-            "users": [
-              {
-                "id": "4784f9b8-a879-4fec-9718-ebddefa47750",
-                "encryption": "none"
-              }
-            ]
-          }
-        ]
-      },
-      "tag": "XHTTP_IN",
-      "streamSettings": {
-        "network": "xhttp",
-        "xhttpSettings": {
-          "host": "bing.com",
-          "path": "/xhttp_client_upload",
-          "mode": "auto",
-          "extra": {
-            "noSSEHeader": false,
-            "scMaxEachPostBytes": 1000000,
-            "scMaxBufferedPosts": 30,
-            "xPaddingBytes": "100-1000"
-          }
-        },
-        "sockopt": {
-          "tcpFastOpen": true,
-          "acceptProxyProtocol": false,
-          "tcpcongestion": "bbr",
-          "tcpMptcp": true
-        }
-      },
-      "sniffing": {
-        "enabled": true,
-        "destOverride": [
-          "http",
-          "tls",
-          "quic"
-        ],
-        "metadataOnly": false,
-        "routeOnly": true
-      }
-    }
-  ]
-}`
+		"log": {
+		  "loglevel": "debug"
+		},
+		"stats": {},
+		"policy": {
+		  "levels": {
+			"0": {
+			  "statsUserUplink": true,
+			  "statsUserDownlink": true
+			}
+		  },
+		  "system": {
+			"statsInboundUplink": true,
+			"statsInboundDownlink": true,
+			"statsOutboundUplink": true,
+			"statsOutboundDownlink": true
+		  }
+		},
+		"inbounds": [
+		  {
+			"tag": "agentin",
+			"protocol": "http",
+			"port": 8080,
+			"listen": "127.0.0.1",
+			"settings": {}
+		  },
+		  {
+			"listen": "127.0.0.1",
+			"port": 10085,
+			"protocol": "dokodemo-door",
+			"settings": {
+			  "address": "127.0.0.1"
+			},
+			"tag": "api-in"
+		  }
+		],
+		"api": {
+		  "tag": "api",
+		  "services": [
+			"HandlerService",
+			"StatsService"
+		  ]
+		},
+		"routing": {
+		  "rules": [
+			{
+			  "inboundTag": [
+				"api-in"
+			  ],
+			  "outboundTag": "api",
+			  "type": "field"
+			}
+		  ],
+		  "domainStrategy": "AsIs"
+		},
+		"outbounds": [
+		  {
+			"protocol": "vless",
+			"settings": {
+			  "vnext": [
+				{
+				  "address": "1.2.3.4",
+				  "port": 1234,
+				  "users": [
+					{
+					  "id": "4784f9b8-a879-4fec-9718-ebddefa47750",
+					  "encryption": "none"
+					}
+				  ]
+				}
+			  ]
+			},
+			"tag": "agentout",
+			"streamSettings": {
+			  "network": "ws",
+			  "security": "none",
+			  "wsSettings": {
+				"path": "/?ed=2048",
+				"headers": {
+				  "Host": "bing.com"
+				}
+			  }
+			}
+		  }
+		]
+	  }`
 }
--- a/common/session/context.go
+++ b/common/session/context.go
@@ -23,8 +23,6 @@ const (
 	timeoutOnlyKey            ctx.SessionKey = 8
 	allowedNetworkKey         ctx.SessionKey = 9
 	handlerSessionKey         ctx.SessionKey = 10
-	mitmAlpn11Key             ctx.SessionKey = 11
-	mitmServerNameKey         ctx.SessionKey = 12
 )

 func ContextWithInbound(ctx context.Context, inbound *Inbound) context.Context {
@@ -42,7 +40,7 @@ func ContextWithOutbounds(ctx context.Context, outbounds []*Outbound) context.Co
 	return context.WithValue(ctx, outboundSessionKey, outbounds)
 }

-func ContextCloneOutboundsAndContent(ctx context.Context) context.Context {
+func ContextCloneOutbounds(ctx context.Context) context.Context {
 	outbounds := OutboundsFromContext(ctx)
 	newOutbounds := make([]*Outbound, len(outbounds))
 	for i, ob := range outbounds {
@@ -55,15 +53,7 @@ func ContextCloneOutboundsAndContent(ctx context.Context) context.Context {
 		newOutbounds[i] = &v
 	}

-	content := ContentFromContext(ctx)
-	newContent := Content{}
-	if content != nil {
-		newContent = *content
-		if content.Attributes != nil {
-			panic("content.Attributes != nil")
-		}
-	}
-	return ContextWithContent(ContextWithOutbounds(ctx, newOutbounds), &newContent)
+	return ContextWithOutbounds(ctx, newOutbounds)
 }

 func OutboundsFromContext(ctx context.Context) []*Outbound {
@@ -172,25 +162,3 @@ func AllowedNetworkFromContext(ctx context.Context) net.Network {
 	}
 	return net.Network_Unknown
 }
-
-func ContextWithMitmAlpn11(ctx context.Context, alpn11 bool) context.Context {
-	return context.WithValue(ctx, mitmAlpn11Key, alpn11)
-}
-
-func MitmAlpn11FromContext(ctx context.Context) bool {
-	if val, ok := ctx.Value(mitmAlpn11Key).(bool); ok {
-		return val
-	}
-	return false
-}
-
-func ContextWithMitmServerName(ctx context.Context, serverName string) context.Context {
-	return context.WithValue(ctx, mitmServerNameKey, serverName)
-}
-
-func MitmServerNameFromContext(ctx context.Context) string {
-	if val, ok := ctx.Value(mitmServerNameKey).(string); ok {
-		return val
-	}
-	return ""
-}
--- a/common/session/session.go
+++ b/common/session/session.go
@@ -4,6 +4,7 @@ package session // import "github.com/xtls/xray-core/common/session"
 import (
 	"context"
 	"math/rand"
+	"sync"

 	c "github.com/xtls/xray-core/common/ctx"
 	"github.com/xtls/xray-core/common/errors"
@@ -74,8 +75,8 @@ type Outbound struct {

 // SniffingRequest controls the behavior of content sniffing.
 type SniffingRequest struct {
-	ExcludeForDomain               []string // read-only once set
-	OverrideDestinationForProtocol []string // read-only once set
+	ExcludeForDomain               []string
+	OverrideDestinationForProtocol []string
 	Enabled                        bool
 	MetadataOnly                   bool
 	RouteOnly                      bool
@@ -91,6 +92,10 @@ type Content struct {
 	Attributes map[string]string

 	SkipDNSResolve bool
+
+	mu sync.Mutex
+
+	isLocked bool
 }

 // Sockopt is the settings for socket connection.
@@ -99,8 +104,22 @@ type Sockopt struct {
 	Mark int32
 }

+// Some how when using mux, there will be a same ctx between different requests
+// This will cause problem as it's designed for single request, like concurrent map writes
+// Add a Mutex as a temp solution
+
 // SetAttribute attaches additional string attributes to content.
 func (c *Content) SetAttribute(name string, value string) {
+	if c.isLocked {
+		errors.LogError(context.Background(), "Multiple goroutines are tring to access one routing content, tring to write ", name, ":", value)
+	}
+	c.mu.Lock()
+	c.isLocked = true
+	defer func() {
+		c.isLocked = false
+		c.mu.Unlock()
+	}()
+
 	if c.Attributes == nil {
 		c.Attributes = make(map[string]string)
 	}
@@ -109,8 +128,24 @@ func (c *Content) SetAttribute(name string, value string) {

 // Attribute retrieves additional string attributes from content.
 func (c *Content) Attribute(name string) string {
+	c.mu.Lock()
+	c.isLocked = true
+	defer func() {
+		c.isLocked = false
+		c.mu.Unlock()
+	}()
 	if c.Attributes == nil {
 		return ""
 	}
 	return c.Attributes[name]
 }
+
+func (c *Content) AttributeLen() int {
+	c.mu.Lock()
+	c.isLocked = true
+	defer func() {
+		c.isLocked = false
+		c.mu.Unlock()
+	}()
+	return len(c.Attributes)
+}
--- a/common/singbridge/dialer.go
+++ b/common/singbridge/dialer.go
@@ -48,9 +48,9 @@ func (d *XrayOutboundDialer) DialContext(ctx context.Context, network string, de
 		outbounds = []*session.Outbound{{}}
 		ctx = session.ContextWithOutbounds(ctx, outbounds)
 	}
-	ob := outbounds[len(outbounds)-1]
+	ob := outbounds[len(outbounds) - 1]
 	ob.Target = ToDestination(destination, ToNetwork(network))
-
+	
 	opts := []pipe.Option{pipe.WithSizeLimit(64 * 1024)}
 	uplinkReader, uplinkWriter := pipe.New(opts...)
 	downlinkReader, downlinkWriter := pipe.New(opts...)
--- a/core/config.go
+++ b/core/config.go
@@ -2,7 +2,6 @@ package core

 import (
 	"io"
-	"slices"
 	"strings"

 	"github.com/xtls/xray-core/common"
@@ -31,7 +30,7 @@ type ConfigLoader func(input interface{}) (*Config, error)
 // ConfigBuilder is a builder to build core.Config from filenames and formats
 type ConfigBuilder func(files []*ConfigSource) (*Config, error)

-// ConfigsMerger merges multiple json configs into a single one
+// ConfigsMerger merge multiple json configs into on config
 type ConfigsMerger func(files []*ConfigSource) (string, error)

 var (
@@ -65,11 +64,14 @@ func GetMergedConfig(args cmdarg.Arg) (string, error) {
 	supported := []string{"json", "yaml", "toml"}
 	for _, file := range args {
 		format := getFormat(file)
-		if slices.Contains(supported, format) {
-			files = append(files, &ConfigSource{
-				Name:   file,
-				Format: format,
-			})
+		for _, s := range supported {
+			if s == format {
+				files = append(files, &ConfigSource{
+					Name:   file,
+					Format: format,
+				})
+				break
+			}
 		}
 	}
 	return ConfigMergedFormFiles(files)
--- a/core/core.go
+++ b/core/core.go
@@ -17,8 +17,8 @@ import (
 )

 var (
-	Version_x byte = 25
-	Version_y byte = 3
+	Version_x byte = 24
+	Version_y byte = 10
 	Version_z byte = 31
 )

--- a/core/proto.go
+++ b/core/proto.go
@@ -1,5 +1,5 @@
 package core

-//go:generate go install -v google.golang.org/protobuf/cmd/protoc-gen-go@latest
-//go:generate go install -v google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+//go:generate go install -v google.golang.org/protobuf/cmd/protoc-gen-go@v1.34.2
+//go:generate go install -v google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.5.1
 //go:generate go run ../infra/vprotogen/main.go -pwd ./..
--- a/core/xray.go
+++ b/core/xray.go
@@ -44,13 +44,22 @@ func getFeature(allFeatures []features.Feature, t reflect.Type) features.Feature
 	return nil
 }

-func (r *resolution) callbackResolution(allFeatures []features.Feature) error {
+func (r *resolution) resolve(allFeatures []features.Feature) (bool, error) {
+	var fs []features.Feature
+	for _, d := range r.deps {
+		f := getFeature(allFeatures, d)
+		if f == nil {
+			return false, nil
+		}
+		fs = append(fs, f)
+	}
+
 	callback := reflect.ValueOf(r.callback)
 	var input []reflect.Value
 	callbackType := callback.Type()
 	for i := 0; i < callbackType.NumIn(); i++ {
 		pt := callbackType.In(i)
-		for _, f := range allFeatures {
+		for _, f := range fs {
 			if reflect.TypeOf(f).AssignableTo(pt) {
 				input = append(input, reflect.ValueOf(f))
 				break
@@ -75,17 +84,15 @@ func (r *resolution) callbackResolution(allFeatures []features.Feature) error {
 		}
 	}

-	return err
+	return true, err
 }

-// Instance combines all Xray features.
+// Instance combines all functionalities in Xray.
 type Instance struct {
-	statusLock                 sync.Mutex
-	features                   []features.Feature
-	pendingResolutions         []resolution
-	pendingOptionalResolutions []resolution
-	running                    bool
-	resolveLock                sync.Mutex
+	access             sync.Mutex
+	features           []features.Feature
+	featureResolutions []resolution
+	running            bool

 	ctx context.Context
 }
@@ -146,14 +153,7 @@ func addOutboundHandlers(server *Instance, configs []*OutboundHandlerConfig) err
 // See Instance.RequireFeatures for more information.
 func RequireFeatures(ctx context.Context, callback interface{}) error {
 	v := MustFromContext(ctx)
-	return v.RequireFeatures(callback, false)
-}
-
-// OptionalFeatures is a helper function to aquire features from Instance in context.
-// See Instance.RequireFeatures for more information.
-func OptionalFeatures(ctx context.Context, callback interface{}) error {
-	v := MustFromContext(ctx)
-	return v.RequireFeatures(callback, true)
+	return v.RequireFeatures(callback)
 }

 // New returns a new Xray instance based on given configuration.
@@ -227,12 +227,9 @@ func initInstanceWithConfig(config *Config, server *Instance) (bool, error) {
 		}(),
 	)

-	server.resolveLock.Lock()
-	if server.pendingResolutions != nil {
-		server.resolveLock.Unlock()
-		return true, errors.New("not all dependencies are resolved.")
+	if server.featureResolutions != nil {
+		return true, errors.New("not all dependency are resolved.")
 	}
-	server.resolveLock.Unlock()

 	if err := addInboundHandlers(server, config.Inbound); err != nil {
 		return true, err
@@ -251,8 +248,8 @@ func (s *Instance) Type() interface{} {

 // Close shutdown the Xray instance.
 func (s *Instance) Close() error {
-	s.statusLock.Lock()
-	defer s.statusLock.Unlock()
+	s.access.Lock()
+	defer s.access.Unlock()

 	s.running = false

@@ -271,7 +268,7 @@ func (s *Instance) Close() error {

 // RequireFeatures registers a callback, which will be called when all dependent features are registered.
 // The callback must be a func(). All its parameters must be features.Feature.
-func (s *Instance) RequireFeatures(callback interface{}, optional bool) error {
+func (s *Instance) RequireFeatures(callback interface{}) error {
 	callbackType := reflect.TypeOf(callback)
 	if callbackType.Kind() != reflect.Func {
 		panic("not a function")
@@ -286,32 +283,17 @@ func (s *Instance) RequireFeatures(callback interface{}, optional bool) error {
 		deps:     featureTypes,
 		callback: callback,
 	}
-
-	s.resolveLock.Lock()
-	foundAll := true
-	for _, d := range r.deps {
-		f := getFeature(s.features, d)
-		if f == nil {
-			foundAll = false
-			break
-		}
-	}
-	if foundAll {
-		s.resolveLock.Unlock()
-		return r.callbackResolution(s.features)
-	} else {
-		if optional {
-			s.pendingOptionalResolutions = append(s.pendingOptionalResolutions, r)
-		} else {
-			s.pendingResolutions = append(s.pendingResolutions, r)
-		}
-		s.resolveLock.Unlock()
-		return nil
+	if finished, err := r.resolve(s.features); finished {
+		return err
 	}
+	s.featureResolutions = append(s.featureResolutions, r)
+	return nil
 }

 // AddFeature registers a feature into current Instance.
 func (s *Instance) AddFeature(feature features.Feature) error {
+	s.features = append(s.features, feature)
+
 	if s.running {
 		if err := feature.Start(); err != nil {
 			errors.LogInfoInner(s.ctx, err, "failed to start feature")
@@ -319,52 +301,27 @@ func (s *Instance) AddFeature(feature features.Feature) error {
 		return nil
 	}

-	s.resolveLock.Lock()
-	s.features = append(s.features, feature)
+	if s.featureResolutions == nil {
+		return nil
+	}

-	var availableResolution []resolution
-	var pending []resolution
-	for _, r := range s.pendingResolutions {
-		foundAll := true
-		for _, d := range r.deps {
-			f := getFeature(s.features, d)
-			if f == nil {
-				foundAll = false
-				break
-			}
+	var pendingResolutions []resolution
+	for _, r := range s.featureResolutions {
+		finished, err := r.resolve(s.features)
+		if finished && err != nil {
+			return err
 		}
-		if foundAll {
-			availableResolution = append(availableResolution, r)
-		} else {
-			pending = append(pending, r)
+		if !finished {
+			pendingResolutions = append(pendingResolutions, r)
 		}
 	}
-	s.pendingResolutions = pending
-
-	var pendingOptional []resolution
-	for _, r := range s.pendingOptionalResolutions {
-		foundAll := true
-		for _, d := range r.deps {
-			f := getFeature(s.features, d)
-			if f == nil {
-				foundAll = false
-				break
-			}
-		}
-		if foundAll {
-			availableResolution = append(availableResolution, r)
-		} else {
-			pendingOptional = append(pendingOptional, r)
-		}
+	if len(pendingResolutions) == 0 {
+		s.featureResolutions = nil
+	} else if len(pendingResolutions) < len(s.featureResolutions) {
+		s.featureResolutions = pendingResolutions
 	}
-	s.pendingOptionalResolutions = pendingOptional
-	s.resolveLock.Unlock()

-	var err error
-	for _, r := range availableResolution {
-		err = r.callbackResolution(s.features) // only return the last error for now
-	}
-	return err
+	return nil
 }

 // GetFeature returns a feature of the given type, or nil if such feature is not registered.
@@ -377,8 +334,8 @@ func (s *Instance) GetFeature(featureType interface{}) features.Feature {
 //
 // xray:api:stable
 func (s *Instance) Start() error {
-	s.statusLock.Lock()
-	defer s.statusLock.Unlock()
+	s.access.Lock()
+	defer s.access.Unlock()

 	s.running = true
 	for _, f := range s.features {
--- a/core/xray_test.go
+++ b/core/xray_test.go
@@ -30,7 +30,7 @@ func TestXrayDependency(t *testing.T) {
 			t.Error("expected dns client fulfilled, but actually nil")
 		}
 		wait <- true
-	}, false)
+	})
 	instance.AddFeature(localdns.New())
 	<-wait
 }
@@ -54,8 +54,8 @@ func TestXrayClose(t *testing.T) {
 					Listen: net.NewIPOrDomain(net.LocalHostIP),
 				}),
 				ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
-					Address:  net.NewIPOrDomain(net.LocalHostIP),
-					Port:     uint32(0),
+					Address: net.NewIPOrDomain(net.LocalHostIP),
+					Port:    uint32(0),
 					Networks: []net.Network{net.Network_TCP},
 				}),
 			},
--- a/features/dns/client.go
+++ b/features/dns/client.go
@@ -21,7 +21,7 @@ type Client interface {
 	features.Feature

 	// LookupIP returns IP address for the given domain. IPs may contain IPv4 and/or IPv6 addresses.
-	LookupIP(domain string, option IPOption) ([]net.IP, uint32, error)
+	LookupIP(domain string, option IPOption) ([]net.IP, error)
 }

 type HostsLookup interface {
--- a/features/dns/localdns/client.go
+++ b/features/dns/localdns/client.go
@@ -20,10 +20,10 @@ func (*Client) Start() error { return nil }
 func (*Client) Close() error { return nil }

 // LookupIP implements Client.
-func (*Client) LookupIP(host string, option dns.IPOption) ([]net.IP, uint32, error) {
+func (*Client) LookupIP(host string, option dns.IPOption) ([]net.IP, error) {
 	ips, err := net.LookupIP(host)
 	if err != nil {
-		return nil, 0, err
+		return nil, err
 	}
 	parsedIPs := make([]net.IP, 0, len(ips))
 	ipv4 := make([]net.IP, 0, len(ips))
@@ -40,22 +40,21 @@ func (*Client) LookupIP(host string, option dns.IPOption) ([]net.IP, uint32, err
 			ipv6 = append(ipv6, ip)
 		}
 	}
-	// Local DNS ttl is 600
 	switch {
 	case option.IPv4Enable && option.IPv6Enable:
 		if len(parsedIPs) > 0 {
-			return parsedIPs, 600, nil
+			return parsedIPs, nil
 		}
 	case option.IPv4Enable:
 		if len(ipv4) > 0 {
-			return ipv4, 600, nil
+			return ipv4, nil
 		}
 	case option.IPv6Enable:
 		if len(ipv6) > 0 {
-			return ipv6, 600, nil
+			return ipv6, nil
 		}
 	}
-	return nil, 0, dns.ErrEmptyResponse
+	return nil, dns.ErrEmptyResponse
 }

 // New create a new dns.Client that queries localhost for DNS.
--- a/features/inbound/inbound.go
+++ b/features/inbound/inbound.go
@@ -25,7 +25,7 @@ type Handler interface {
 // xray:api:stable
 type Manager interface {
 	features.Feature
-	// GetHandler returns an InboundHandler for the given tag.
+	// GetHandlers returns an InboundHandler for the given tag.
 	GetHandler(ctx context.Context, tag string) (Handler, error)
 	// AddHandler adds the given handler into this Manager.
 	AddHandler(ctx context.Context, handler Handler) error
--- a/features/policy/policy.go
+++ b/features/policy/policy.go
@@ -27,8 +27,6 @@ type Stats struct {
 	UserUplink bool
 	// Whether or not to enable stat counter for user downlink traffic.
 	UserDownlink bool
-	// Whether or not to enable online map for user.
-	UserOnline bool
 }

 // Buffer contains settings for internal buffer.
@@ -125,7 +123,6 @@ func SessionDefault() Session {
 		Stats: Stats{
 			UserUplink:   false,
 			UserDownlink: false,
-			UserOnline:   false,
 		},
 		Buffer: defaultBufferPolicy(),
 	}
--- a/features/routing/context.go
+++ b/features/routing/context.go
@@ -11,7 +11,7 @@ type Context interface {
 	// GetInboundTag returns the tag of the inbound the connection was from.
 	GetInboundTag() string

-	// GetSourceIPs returns the source IPs bound to the connection.
+	// GetSourcesIPs returns the source IPs bound to the connection.
 	GetSourceIPs() []net.IP

 	// GetSourcePort returns the source port of the connection.
--- a/features/routing/dns/context.go
+++ b/features/routing/dns/context.go
@@ -23,7 +23,7 @@ func (ctx *ResolvableContext) GetTargetIPs() []net.IP {
 	}

 	if domain := ctx.GetTargetDomain(); len(domain) != 0 {
-		ips, _, err := ctx.dnsClient.LookupIP(domain, dns.IPOption{
+		ips, err := ctx.dnsClient.LookupIP(domain, dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
--- a/features/routing/session/context.go
+++ b/features/routing/session/context.go
@@ -125,7 +125,7 @@ func (ctx *Context) GetSkipDNSResolve() bool {
 // AsRoutingContext creates a context from context.context with session info.
 func AsRoutingContext(ctx context.Context) routing.Context {
 	outbounds := session.OutboundsFromContext(ctx)
-	ob := outbounds[len(outbounds)-1]
+	ob := outbounds[len(outbounds) - 1]
 	return &Context{
 		Inbound:  session.InboundFromContext(ctx),
 		Outbound: ob,
--- a/features/stats/stats.go
+++ b/features/stats/stats.go
@@ -2,7 +2,6 @@ package stats

 import (
 	"context"
-	"time"

 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
@@ -21,20 +20,6 @@ type Counter interface {
 	Add(int64) int64
 }

-// OnlineMap is the interface for stats.
-//
-// xray:api:stable
-type OnlineMap interface {
-	// Count is the current value of the OnlineMap.
-	Count() int
-	// AddIP adds a ip to the current OnlineMap.
-	AddIP(string)
-	// List is the current OnlineMap ip list.
-	List() []string
-	// IpTimeMap return client ips and their last access time.
-	IpTimeMap() map[string]time.Time
-}
-
 // Channel is the interface for stats channel.
 //
 // xray:api:stable
@@ -85,13 +70,6 @@ type Manager interface {
 	// GetCounter returns a counter by its identifier.
 	GetCounter(string) Counter

-	// RegisterOnlineMap registers a new onlinemap to the manager. The identifier string must not be empty, and unique among other onlinemaps.
-	RegisterOnlineMap(string) (OnlineMap, error)
-	// UnregisterOnlineMap unregisters a onlinemap from the manager by its identifier.
-	UnregisterOnlineMap(string) error
-	// GetOnlineMap returns a onlinemap by its identifier.
-	GetOnlineMap(string) OnlineMap
-
 	// RegisterChannel registers a new channel to the manager. The identifier string must not be empty, and unique among other channels.
 	RegisterChannel(string) (Channel, error)
 	// UnregisterChannel unregisters a channel from the manager by its identifier.
@@ -110,16 +88,6 @@ func GetOrRegisterCounter(m Manager, name string) (Counter, error) {
 	return m.RegisterCounter(name)
 }

-// GetOrRegisterOnlineMap tries to get the OnlineMap first. If not exist, it then tries to create a new onlinemap.
-func GetOrRegisterOnlineMap(m Manager, name string) (OnlineMap, error) {
-	onlineMap := m.GetOnlineMap(name)
-	if onlineMap != nil {
-		return onlineMap, nil
-	}
-
-	return m.RegisterOnlineMap(name)
-}
-
 // GetOrRegisterChannel tries to get the StatChannel first. If not exist, it then tries to create a new channel.
 func GetOrRegisterChannel(m Manager, name string) (Channel, error) {
 	channel := m.GetChannel(name)
@@ -160,21 +128,6 @@ func (NoopManager) GetCounter(string) Counter {
 	return nil
 }

-// RegisterOnlineMap implements Manager.
-func (NoopManager) RegisterOnlineMap(string) (OnlineMap, error) {
-	return nil, errors.New("not implemented")
-}
-
-// UnregisterOnlineMap implements Manager.
-func (NoopManager) UnregisterOnlineMap(string) error {
-	return nil
-}
-
-// GetOnlineMap implements Manager.
-func (NoopManager) GetOnlineMap(string) OnlineMap {
-	return nil
-}
-
 // RegisterChannel implements Manager.
 func (NoopManager) RegisterChannel(string) (Channel, error) {
 	return nil, errors.New("not implemented")
--- a/go.mod
+++ b/go.mod
@@ -1,61 +1,65 @@
 module github.com/xtls/xray-core

-go 1.24
+go 1.21.4

 require (
 	github.com/OmarTariq612/goech v0.0.0-20240405204721-8e2e1dafd3a0
-	github.com/cloudflare/circl v1.6.0
+	github.com/cloudflare/circl v1.4.0
 	github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344
 	github.com/golang/mock v1.7.0-rc.1
-	github.com/google/go-cmp v0.7.0
+	github.com/google/go-cmp v0.6.0
 	github.com/gorilla/websocket v1.5.3
-	github.com/miekg/dns v1.1.64
+	github.com/miekg/dns v1.1.62
 	github.com/pelletier/go-toml v1.9.5
 	github.com/pires/go-proxyproto v0.8.0
-	github.com/quic-go/quic-go v0.50.1
+	github.com/refraction-networking/uquic v0.0.6
 	github.com/refraction-networking/utls v1.6.7
-	github.com/sagernet/sing v0.5.1
+	github.com/sagernet/sing v0.4.3
 	github.com/sagernet/sing-shadowsocks v0.2.7
 	github.com/seiflotfy/cuckoofilter v0.0.0-20240715131351-a2f2c23f1771
-	github.com/stretchr/testify v1.10.0
+	github.com/stretchr/testify v1.9.0
 	github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e
 	github.com/vishvananda/netlink v1.3.0
 	github.com/xtls/reality v0.0.0-20240712055506-48f0b2d5ed6d
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
-	golang.org/x/crypto v0.36.0
-	golang.org/x/net v0.38.0
-	golang.org/x/sync v0.12.0
-	golang.org/x/sys v0.31.0
+	golang.org/x/crypto v0.28.0
+	golang.org/x/net v0.30.0
+	golang.org/x/sync v0.8.0
+	golang.org/x/sys v0.26.0
 	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173
-	google.golang.org/grpc v1.71.0
-	google.golang.org/protobuf v1.36.6
-	gvisor.dev/gvisor v0.0.0-20240320123526-dc6abceb7ff0
+	google.golang.org/grpc v1.67.1
+	google.golang.org/protobuf v1.35.1
+	gvisor.dev/gvisor v0.0.0-20231202080848-1f7806d17489
 	h12.io/socks v1.0.3
-	lukechampine.com/blake3 v1.4.0
+	lukechampine.com/blake3 v1.3.0
 )

 require (
 	github.com/andybalholm/brotli v1.1.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dgryski/go-metro v0.0.0-20211217172704-adc40b04c140 // indirect
+	github.com/gaukas/clienthellod v0.4.2 // indirect
+	github.com/gaukas/godicttls v0.0.4 // indirect
 	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
 	github.com/google/btree v1.1.2 // indirect
+	github.com/google/gopacket v1.1.19 // indirect
 	github.com/google/pprof v0.0.0-20240528025155-186aa0362fba // indirect
 	github.com/klauspost/compress v1.17.8 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
 	github.com/onsi/ginkgo/v2 v2.19.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/quic-go/qpack v0.5.1 // indirect
+	github.com/quic-go/qpack v0.4.0 // indirect
 	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
 	github.com/vishvananda/netns v0.0.4 // indirect
-	go.uber.org/mock v0.5.0 // indirect
+	go.uber.org/mock v0.4.0 // indirect
 	golang.org/x/exp v0.0.0-20240531132922-fd00a4e0eefc // indirect
-	golang.org/x/mod v0.23.0 // indirect
-	golang.org/x/text v0.23.0 // indirect
-	golang.org/x/time v0.7.0 // indirect
-	golang.org/x/tools v0.30.0 // indirect
+	golang.org/x/mod v0.18.0 // indirect
+	golang.org/x/text v0.19.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
+	golang.org/x/tools v0.22.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250115164207-1a7da9e5054f // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240814211410-ddb44dafa142 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
--- a/Show More
+++ b/Show More