diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 403f7e1c..256d9ede 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -7,11 +7,6 @@ on:
         description: "Version name"
         required: true
         type: string
-      prerelease:
-        description: "Is prerelease"
-        required: true
-        type: boolean
-        default: true
       build:
         description: "Build type"
         required: true
@@ -43,7 +38,6 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       version: ${{ steps.outputs.outputs.version }}
-      prerelease: ${{ steps.outputs.outputs.prerelease }}
     steps:
       - name: Checkout
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
@@ -57,9 +51,7 @@ jobs:
         if: github.event_name == 'workflow_dispatch'
         run: |-
           echo "version=${{ inputs.version }}" 
-          echo "prerelease=${{ inputs.prerelease }}"
           echo "version=${{ inputs.version }}" >> "$GITHUB_ENV"
-          echo "prerelease=${{ inputs.prerelease }}" >> "$GITHUB_ENV"
       - name: Calculate version
         if: github.event_name != 'workflow_dispatch'
         run: |-
@@ -68,7 +60,6 @@ jobs:
         id: outputs
         run: |-
           echo "version=$version" >> "$GITHUB_OUTPUT"
-          echo "prerelease=$prerelease" >> "$GITHUB_OUTPUT"
   build:
     name: Build binary
     if: github.event_name != 'workflow_dispatch' || inputs.build == 'All' || inputs.build == 'Binary'
@@ -249,12 +240,12 @@ jobs:
           JAVA_HOME: /usr/lib/jvm/java-17-openjdk-amd64
           ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
       - name: Checkout main branch
-        if: needs.calculate_version.outputs.prerelease == 'false'
+        if: github.ref == 'refs/heads/main-next' && github.event_name != 'workflow_dispatch'
         run: |-
           cd clients/android
           git checkout main
       - name: Checkout dev branch
-        if: needs.calculate_version.outputs.prerelease == 'true'
+        if: github.ref == 'refs/heads/dev-next' && github.event_name != 'workflow_dispatch'
         run: |-
           cd clients/android
           git checkout dev
@@ -323,12 +314,12 @@ jobs:
           JAVA_HOME: /usr/lib/jvm/java-17-openjdk-amd64
           ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
       - name: Checkout main branch
-        if: needs.calculate_version.outputs.prerelease == 'false'
+        if: github.ref == 'refs/heads/main-next' && github.event_name != 'workflow_dispatch'
         run: |-
           cd clients/android
           git checkout main
       - name: Checkout dev branch
-        if: needs.calculate_version.outputs.prerelease == 'true'
+        if: github.ref == 'refs/heads/dev-next' && github.event_name != 'workflow_dispatch'
         run: |-
           cd clients/android
           git checkout dev
@@ -409,12 +400,12 @@ jobs:
           git tag v${{ needs.calculate_version.outputs.version }}
           echo "VERSION=${{ needs.calculate_version.outputs.version }}" >> "$GITHUB_ENV"
       - name: Checkout main branch
-        if: matrix.if && needs.calculate_version.outputs.prerelease == 'false'
+        if: matrix.if && github.ref == 'refs/heads/main-next' && github.event_name != 'workflow_dispatch'
         run: |-
           cd clients/apple
           git checkout main
       - name: Checkout dev branch
-        if: matrix.if && needs.calculate_version.outputs.prerelease == 'true'
+        if: matrix.if && github.ref == 'refs/heads/dev-next' && github.event_name != 'workflow_dispatch'
         run: |-
           cd clients/apple
           git checkout dev
diff --git a/cmd/internal/build_shared/tag.go b/cmd/internal/build_shared/tag.go
index 16a97f3e..15f05090 100644
--- a/cmd/internal/build_shared/tag.go
+++ b/cmd/internal/build_shared/tag.go
@@ -36,11 +36,3 @@ func ReadTagVersion() (badversion.Version, error) {
 	}
 	return version, nil
 }
-
-func IsDevBranch() bool {
-	branch, err := shell.Exec("git", "branch", "--show-current").ReadOutput()
-	if err != nil {
-		return false
-	}
-	return branch == "dev-next"
-}
diff --git a/cmd/internal/read_tag/main.go b/cmd/internal/read_tag/main.go
index ae496ec6..2cebaf70 100644
--- a/cmd/internal/read_tag/main.go
+++ b/cmd/internal/read_tag/main.go
@@ -6,7 +6,6 @@ import (
 
 	"github.com/sagernet/sing-box/cmd/internal/build_shared"
 	"github.com/sagernet/sing-box/log"
-	F "github.com/sagernet/sing/common/format"
 )
 
 var nightly bool
@@ -22,25 +21,14 @@ func main() {
 		if err != nil {
 			log.Fatal(err)
 		}
-		var (
-			versionStr   string
-			isPrerelease bool
-		)
+		var versionStr string
 		if version.PreReleaseIdentifier != "" {
-			isPrerelease = true
 			versionStr = version.VersionString() + "-nightly"
 		} else {
 			version.Patch++
 			versionStr = version.VersionString() + "-nightly"
 		}
-		if build_shared.IsDevBranch() {
-			isPrerelease = true
-		}
-		err = setGitHubOutput("version", versionStr)
-		if err != nil {
-			log.Fatal(err)
-		}
-		err = setGitHubOutput("prerelease", F.ToString(isPrerelease))
+		err = setGitHubEnv("version", versionStr)
 		if err != nil {
 			log.Fatal(err)
 		}
@@ -55,7 +43,7 @@ func main() {
 	}
 }
 
-func setGitHubOutput(name string, value string) error {
+func setGitHubEnv(name string, value string) error {
 	outputFile, err := os.OpenFile(os.Getenv("GITHUB_ENV"), os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644)
 	if err != nil {
 		return err