Update sing-box core

cmd/internal/app_store_connect/main.go

@@ -100,11 +100,32 @@ findVersion:
 }
 
 func publishTestflight(ctx context.Context) error {
+	if len(os.Args) < 3 {
+		return E.New("platform required: ios, macos, or tvos")
+	}
+	var platform asc.Platform
+	switch os.Args[2] {
+	case "ios":
+		platform = asc.PlatformIOS
+	case "macos":
+		platform = asc.PlatformMACOS
+	case "tvos":
+		platform = asc.PlatformTVOS
+	default:
+		return E.New("unknown platform: ", os.Args[2])
+	}
+
 	tagVersion, err := build_shared.ReadTagVersion()
 	if err != nil {
 		return err
 	}
 	tag := tagVersion.VersionString()
+
+	releaseNotes := F.ToString("sing-box ", tagVersion.String())
+	if len(os.Args) >= 4 {
+		releaseNotes = strings.Join(os.Args[3:], " ")
+	}
+
 	client := createClient(20 * time.Minute)
 
 	log.Info(tag, " list build IDs")
@@ -115,97 +136,76 @@ func publishTestflight(ctx context.Context) error {
 	buildIDs := common.Map(buildIDsResponse.Data, func(it asc.RelationshipData) string {
 		return it.ID
 	})
-	var platforms []asc.Platform
-	if len(os.Args) == 3 {
-		switch os.Args[2] {
-		case "ios":
-			platforms = []asc.Platform{asc.PlatformIOS}
-		case "macos":
-			platforms = []asc.Platform{asc.PlatformMACOS}
-		case "tvos":
-			platforms = []asc.Platform{asc.PlatformTVOS}
-		default:
-			return E.New("unknown platform: ", os.Args[2])
-		}
-	} else {
-		platforms = []asc.Platform{
-			asc.PlatformIOS,
-			asc.PlatformMACOS,
-			asc.PlatformTVOS,
-		}
-	}
+
 	waitingForProcess := false
-	for _, platform := range platforms {
-		log.Info(string(platform), " list builds")
-		for {
-			builds, _, err := client.Builds.ListBuilds(ctx, &asc.ListBuildsQuery{
-				FilterApp:                       []string{appID},
-				FilterPreReleaseVersionPlatform: []string{string(platform)},
-			})
-			if err != nil {
-				return err
-			}
-			build := builds.Data[0]
-			if !waitingForProcess && (common.Contains(buildIDs, build.ID) || time.Since(build.Attributes.UploadedDate.Time) > 30*time.Minute) {
-				log.Info(string(platform), " ", tag, " waiting for process")
-				time.Sleep(15 * time.Second)
-				continue
-			}
-			if *build.Attributes.ProcessingState != "VALID" {
-				waitingForProcess = true
-				log.Info(string(platform), " ", tag, " waiting for process: ", *build.Attributes.ProcessingState)
-				time.Sleep(15 * time.Second)
-				continue
-			}
-			log.Info(string(platform), " ", tag, " list localizations")
-			localizations, _, err := client.TestFlight.ListBetaBuildLocalizationsForBuild(ctx, build.ID, nil)
-			if err != nil {
-				return err
-			}
-			localization := common.Find(localizations.Data, func(it asc.BetaBuildLocalization) bool {
-				return *it.Attributes.Locale == "en-US"
-			})
-			if localization.ID == "" {
-				log.Fatal(string(platform), " ", tag, " no en-US localization found")
-			}
-			if localization.Attributes == nil || localization.Attributes.WhatsNew == nil || *localization.Attributes.WhatsNew == "" {
-				log.Info(string(platform), " ", tag, " update localization")
-				_, _, err = client.TestFlight.UpdateBetaBuildLocalization(ctx, localization.ID, common.Ptr(
-					F.ToString("sing-box ", tagVersion.String()),
-				))
-				if err != nil {
-					return err
-				}
-			}
-			log.Info(string(platform), " ", tag, " publish")
-			response, err := client.TestFlight.AddBuildsToBetaGroup(ctx, groupID, []string{build.ID})
-			if response != nil && (response.StatusCode == http.StatusUnprocessableEntity || response.StatusCode == http.StatusNotFound) {
-				log.Info("waiting for process")
-				time.Sleep(15 * time.Second)
-				continue
-			} else if err != nil {
-				return err
-			}
-			log.Info(string(platform), " ", tag, " list submissions")
-			betaSubmissions, _, err := client.TestFlight.ListBetaAppReviewSubmissions(ctx, &asc.ListBetaAppReviewSubmissionsQuery{
-				FilterBuild: []string{build.ID},
-			})
-			if err != nil {
-				return err
-			}
-			if len(betaSubmissions.Data) == 0 {
-				log.Info(string(platform), " ", tag, " create submission")
-				_, _, err = client.TestFlight.CreateBetaAppReviewSubmission(ctx, build.ID)
-				if err != nil {
-					if strings.Contains(err.Error(), "ANOTHER_BUILD_IN_REVIEW") {
-						log.Error(err)
-						break
-					}
-					return err
-				}
-			}
-			break
+	log.Info(string(platform), " list builds")
+	for {
+		builds, _, err := client.Builds.ListBuilds(ctx, &asc.ListBuildsQuery{
+			FilterApp:                       []string{appID},
+			FilterPreReleaseVersionPlatform: []string{string(platform)},
+		})
+		if err != nil {
+			return err
 		}
+		build := builds.Data[0]
+		log.Info(string(platform), " ", tag, " found build: ", build.ID, " (", *build.Attributes.Version, ")")
+		if !waitingForProcess && (common.Contains(buildIDs, build.ID) || time.Since(build.Attributes.UploadedDate.Time) > 30*time.Minute) {
+			log.Info(string(platform), " ", tag, " waiting for process")
+			time.Sleep(15 * time.Second)
+			continue
+		}
+		if *build.Attributes.ProcessingState != "VALID" {
+			waitingForProcess = true
+			log.Info(string(platform), " ", tag, " waiting for process: ", *build.Attributes.ProcessingState)
+			time.Sleep(15 * time.Second)
+			continue
+		}
+		log.Info(string(platform), " ", tag, " list localizations")
+		localizations, _, err := client.TestFlight.ListBetaBuildLocalizationsForBuild(ctx, build.ID, nil)
+		if err != nil {
+			return err
+		}
+		localization := common.Find(localizations.Data, func(it asc.BetaBuildLocalization) bool {
+			return *it.Attributes.Locale == "en-US"
+		})
+		if localization.ID == "" {
+			log.Fatal(string(platform), " ", tag, " no en-US localization found")
+		}
+		if localization.Attributes == nil || localization.Attributes.WhatsNew == nil || *localization.Attributes.WhatsNew == "" {
+			log.Info(string(platform), " ", tag, " update localization")
+			_, _, err = client.TestFlight.UpdateBetaBuildLocalization(ctx, localization.ID, common.Ptr(releaseNotes))
+			if err != nil {
+				return err
+			}
+		}
+		log.Info(string(platform), " ", tag, " publish")
+		response, err := client.TestFlight.AddBuildsToBetaGroup(ctx, groupID, []string{build.ID})
+		if response != nil && (response.StatusCode == http.StatusUnprocessableEntity || response.StatusCode == http.StatusNotFound) {
+			log.Info("waiting for process")
+			time.Sleep(15 * time.Second)
+			continue
+		} else if err != nil {
+			return err
+		}
+		log.Info(string(platform), " ", tag, " list submissions")
+		betaSubmissions, _, err := client.TestFlight.ListBetaAppReviewSubmissions(ctx, &asc.ListBetaAppReviewSubmissionsQuery{
+			FilterBuild: []string{build.ID},
+		})
+		if err != nil {
+			return err
+		}
+		if len(betaSubmissions.Data) == 0 {
+			log.Info(string(platform), " ", tag, " create submission")
+			_, _, err = client.TestFlight.CreateBetaAppReviewSubmission(ctx, build.ID)
+			if err != nil {
+				if strings.Contains(err.Error(), "ANOTHER_BUILD_IN_REVIEW") {
+					log.Error(err)
+					break
+				}
+				return err
+			}
+		}
+		break
 	}
 	return nil
 }

cmd/internal/build_libbox/main.go

@@ -5,6 +5,7 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"strconv"
 	"strings"
 
 	_ "github.com/sagernet/gomobile"
@@ -16,17 +17,17 @@ import (
 )
 
 var (
-	debugEnabled  bool
-	target        string
-	platform      string
-	withTailscale bool
+	debugEnabled bool
+	target       string
+	platform     string
+	// withTailscale bool
 )
 
 func init() {
 	flag.BoolVar(&debugEnabled, "debug", false, "enable debug")
 	flag.StringVar(&target, "target", "android", "target platform")
 	flag.StringVar(&platform, "platform", "", "specify platform")
-	flag.BoolVar(&withTailscale, "with-tailscale", false, "build tailscale for iOS and tvOS")
+	// flag.BoolVar(&withTailscale, "with-tailscale", false, "build tailscale for iOS and tvOS")
 }
 
 func main() {
@@ -47,7 +48,7 @@ var (
 	debugFlags  []string
 	sharedTags  []string
 	darwinTags  []string
-	memcTags    []string
+	// memcTags    []string
 	notMemcTags []string
 	debugTags   []string
 )
@@ -59,19 +60,38 @@ func init() {
 	if err != nil {
 		currentTag = "unknown"
 	}
-	sharedFlags = append(sharedFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag+" -s -w -buildid=")
-	debugFlags = append(debugFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag)
+	sharedFlags = append(sharedFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag+" -X internal/godebug.defaultGODEBUG=multipathtcp=0 -s -w -buildid=  -checklinkname=0")
+	debugFlags = append(debugFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag+" -X internal/godebug.defaultGODEBUG=multipathtcp=0 -checklinkname=0")
 
-	sharedTags = append(sharedTags, "with_gvisor", "with_quic", "with_wireguard", "with_utls", "with_clash_api", "with_conntrack")
-	darwinTags = append(darwinTags, "with_dhcp")
-	memcTags = append(memcTags, "with_tailscale")
+	sharedTags = append(sharedTags, "with_gvisor", "with_quic", "with_wireguard", "with_utls", "with_naive_outbound", "with_clash_api", "badlinkname", "tfogo_checklinkname0")
+	darwinTags = append(darwinTags, "with_dhcp", "grpcnotrace")
+	// memcTags = append(memcTags, "with_tailscale")
+	sharedTags = append(sharedTags, "with_tailscale", "ts_omit_logtail", "ts_omit_ssh", "ts_omit_drive", "ts_omit_taildrop", "ts_omit_webclient", "ts_omit_doctor", "ts_omit_capture", "ts_omit_kube", "ts_omit_aws", "ts_omit_synology", "ts_omit_bird")
 	notMemcTags = append(notMemcTags, "with_low_memory")
 	debugTags = append(debugTags, "debug")
 }
 
-func buildAndroid() {
-	build_shared.FindSDK()
+type AndroidBuildConfig struct {
+	AndroidAPI int
+	OutputName string
+	Tags       []string
+}
 
+func filterTags(tags []string, exclude ...string) []string {
+	excludeMap := make(map[string]bool)
+	for _, tag := range exclude {
+		excludeMap[tag] = true
+	}
+	var result []string
+	for _, tag := range tags {
+		if !excludeMap[tag] {
+			result = append(result, tag)
+		}
+	}
+	return result
+}
+
+func checkJavaVersion() {
 	var javaPath string
 	javaHome := os.Getenv("JAVA_HOME")
 	if javaHome == "" {
@@ -87,61 +107,87 @@ func buildAndroid() {
 	if !strings.Contains(javaVersion, "openjdk 17") {
 		log.Fatal("java version should be openjdk 17")
 	}
+}
 
-	var bindTarget string
+func getAndroidBindTarget() string {
 	if platform != "" {
-		bindTarget = platform
+		return platform
 	} else if debugEnabled {
-		bindTarget = "android/arm64"
-	} else {
-		bindTarget = "android"
+		return "android/arm64"
 	}
+	return "android"
+}
 
+func buildAndroidVariant(config AndroidBuildConfig, bindTarget string) {
 	args := []string{
 		"bind",
 		"-v",
+		"-o", config.OutputName,
 		"-target", bindTarget,
-		"-androidapi", "21",
+		"-androidapi", strconv.Itoa(config.AndroidAPI),
 		"-javapkg=io.nekohasekai",
 		"-libname=box",
 	}
 
 	if !debugEnabled {
-		sharedFlags[3] = sharedFlags[3] + " -checklinkname=0"
 		args = append(args, sharedFlags...)
 	} else {
-		debugFlags[1] = debugFlags[1] + " -checklinkname=0"
 		args = append(args, debugFlags...)
 	}
 
-	tags := append(sharedTags, memcTags...)
-	if debugEnabled {
-		tags = append(tags, debugTags...)
-	}
-
-	args = append(args, "-tags", strings.Join(tags, ","))
+	args = append(args, "-tags", strings.Join(config.Tags, ","))
 	args = append(args, "./experimental/libbox")
 
 	command := exec.Command(build_shared.GoBinPath+"/gomobile", args...)
 	command.Stdout = os.Stdout
 	command.Stderr = os.Stderr
-	err = command.Run()
+	err := command.Run()
 	if err != nil {
 		log.Fatal(err)
 	}
 
-	const name = "libbox.aar"
 	copyPath := filepath.Join("..", "sing-box-for-android", "app", "libs")
 	if rw.IsDir(copyPath) {
 		copyPath, _ = filepath.Abs(copyPath)
-		err = rw.CopyFile(name, filepath.Join(copyPath, name))
+		err = rw.CopyFile(config.OutputName, filepath.Join(copyPath, config.OutputName))
 		if err != nil {
 			log.Fatal(err)
 		}
-		log.Info("copied to ", copyPath)
+		log.Info("copied ", config.OutputName, " to ", copyPath)
 	}
 }
 
+func buildAndroid() {
+	build_shared.FindSDK()
+	checkJavaVersion()
+
+	bindTarget := getAndroidBindTarget()
+
+	// Build main variant (SDK 23)
+	mainTags := append([]string{}, sharedTags...)
+	// mainTags = append(mainTags, memcTags...)
+	if debugEnabled {
+		mainTags = append(mainTags, debugTags...)
+	}
+	buildAndroidVariant(AndroidBuildConfig{
+		AndroidAPI: 23,
+		OutputName: "libbox.aar",
+		Tags:       mainTags,
+	}, bindTarget)
+
+	// Build legacy variant (SDK 21, no naive outbound)
+	legacyTags := filterTags(sharedTags, "with_naive_outbound")
+	// legacyTags = append(legacyTags, memcTags...)
+	if debugEnabled {
+		legacyTags = append(legacyTags, debugTags...)
+	}
+	buildAndroidVariant(AndroidBuildConfig{
+		AndroidAPI: 21,
+		OutputName: "libbox-legacy.aar",
+		Tags:       legacyTags,
+	}, bindTarget)
+}
+
 func buildApple() {
 	var bindTarget string
 	if platform != "" {
@@ -149,7 +195,7 @@ func buildApple() {
 	} else if debugEnabled {
 		bindTarget = "ios"
 	} else {
-		bindTarget = "ios,tvos,macos"
+		bindTarget = "ios,iossimulator,tvos,tvossimulator,macos"
 	}
 
 	args := []string{
@@ -159,9 +205,9 @@ func buildApple() {
 		"-libname=box",
 		"-tags-not-macos=with_low_memory",
 	}
-	if !withTailscale {
-		args = append(args, "-tags-macos="+strings.Join(memcTags, ","))
-	}
+	//if !withTailscale {
+	//	args = append(args, "-tags-macos="+strings.Join(memcTags, ","))
+	//}
 
 	if !debugEnabled {
 		args = append(args, sharedFlags...)
@@ -170,9 +216,9 @@ func buildApple() {
 	}
 
 	tags := append(sharedTags, darwinTags...)
-	if withTailscale {
-		tags = append(tags, memcTags...)
-	}
+	//if withTailscale {
+	//	tags = append(tags, memcTags...)
+	//}
 	if debugEnabled {
 		tags = append(tags, debugTags...)
 	}

cmd/internal/format_docs/main.go

@@ -0,0 +1,117 @@
+package main
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/sagernet/sing-box/log"
+)
+
+func main() {
+	err := filepath.Walk("docs", func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return nil
+		}
+		if !strings.HasSuffix(path, ".md") {
+			return nil
+		}
+		return processFile(path)
+	})
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func processFile(path string) error {
+	content, err := os.ReadFile(path)
+	if err != nil {
+		return err
+	}
+
+	lines := strings.Split(string(content), "\n")
+	modified := false
+	result := make([]string, 0, len(lines))
+
+	inQuoteBlock := false
+	materialLines := []int{} // indices of :material- lines in the block
+
+	for _, line := range lines {
+		// Check for quote block start
+		if strings.HasPrefix(line, "!!! quote \"") && strings.Contains(line, "sing-box") {
+			inQuoteBlock = true
+			materialLines = nil
+			result = append(result, line)
+			continue
+		}
+
+		// Inside a quote block
+		if inQuoteBlock {
+			trimmed := strings.TrimPrefix(line, "    ")
+			isMaterialLine := strings.HasPrefix(trimmed, ":material-")
+			isEmpty := strings.TrimSpace(line) == ""
+			isIndented := strings.HasPrefix(line, "    ")
+
+			if isMaterialLine {
+				materialLines = append(materialLines, len(result))
+				result = append(result, line)
+				continue
+			}
+
+			// Block ends when:
+			// - Empty line AFTER we've seen material lines, OR
+			// - Non-indented, non-empty line
+			blockEnds := (isEmpty && len(materialLines) > 0) || (!isEmpty && !isIndented)
+			if blockEnds {
+				// Process collected material lines
+				if len(materialLines) > 0 {
+					for j, idx := range materialLines {
+						isLast := j == len(materialLines)-1
+						resultLine := strings.TrimRight(result[idx], " ")
+						if !isLast {
+							// Add trailing two spaces for non-last lines
+							resultLine += "  "
+						}
+						if result[idx] != resultLine {
+							modified = true
+							result[idx] = resultLine
+						}
+					}
+				}
+				inQuoteBlock = false
+				materialLines = nil
+			}
+		}
+
+		result = append(result, line)
+	}
+
+	// Handle case where file ends while still in a block
+	if inQuoteBlock && len(materialLines) > 0 {
+		for j, idx := range materialLines {
+			isLast := j == len(materialLines)-1
+			resultLine := strings.TrimRight(result[idx], " ")
+			if !isLast {
+				resultLine += "  "
+			}
+			if result[idx] != resultLine {
+				modified = true
+				result[idx] = resultLine
+			}
+		}
+	}
+
+	if modified {
+		newContent := strings.Join(result, "\n")
+		if !bytes.Equal(content, []byte(newContent)) {
+			log.Info("formatted: ", path)
+			return os.WriteFile(path, []byte(newContent), 0o644)
+		}
+	}
+
+	return nil
+}

cmd/internal/update_apple_version/main.go

@@ -71,12 +71,12 @@ func findAndReplace(objectsMap map[string]any, projectContent string, bundleIDLi
 		indexEnd := indexStart + strings.Index(projectContent[indexStart:], "}")
 		versionStart := indexStart + strings.Index(projectContent[indexStart:indexEnd], "MARKETING_VERSION = ") + 20
 		versionEnd := versionStart + strings.Index(projectContent[versionStart:indexEnd], ";")
-		version := projectContent[versionStart:versionEnd]
+		version := strings.Trim(projectContent[versionStart:versionEnd], "\"")
 		if version == newVersion {
 			continue
 		}
 		updated = true
-		projectContent = projectContent[:versionStart] + newVersion + projectContent[versionEnd:]
+		projectContent = projectContent[:versionStart] + "\"" + newVersion + "\"" + projectContent[versionEnd:]
 	}
 	return projectContent, updated
 }

cmd/internal/update_certificates/main.go

@@ -17,6 +17,10 @@ func main() {
 	if err != nil {
 		log.Error(err)
 	}
+	err = updateChromeIncludedRootCAs()
+	if err != nil {
+		log.Error(err)
+	}
 }
 
 func updateMozillaIncludedRootCAs() error {
@@ -69,3 +73,94 @@ func init() {
 	generated.WriteString("}\n")
 	return os.WriteFile("common/certificate/mozilla.go", []byte(generated.String()), 0o644)
 }
+
+func fetchChinaFingerprints() (map[string]bool, error) {
+	response, err := http.Get("https://ccadb.my.salesforce-sites.com/ccadb/AllCertificateRecordsCSVFormatv4")
+	if err != nil {
+		return nil, err
+	}
+	defer response.Body.Close()
+	reader := csv.NewReader(response.Body)
+	header, err := reader.Read()
+	if err != nil {
+		return nil, err
+	}
+	countryIndex := slices.Index(header, "Country")
+	fingerprintIndex := slices.Index(header, "SHA-256 Fingerprint")
+
+	chinaFingerprints := make(map[string]bool)
+	for {
+		record, err := reader.Read()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return nil, err
+		}
+		if record[countryIndex] == "China" {
+			chinaFingerprints[record[fingerprintIndex]] = true
+		}
+	}
+	return chinaFingerprints, nil
+}
+
+func updateChromeIncludedRootCAs() error {
+	chinaFingerprints, err := fetchChinaFingerprints()
+	if err != nil {
+		return err
+	}
+
+	response, err := http.Get("https://ccadb.my.salesforce-sites.com/ccadb/RootCACertificatesIncludedByRSReportCSV")
+	if err != nil {
+		return err
+	}
+	defer response.Body.Close()
+	reader := csv.NewReader(response.Body)
+	header, err := reader.Read()
+	if err != nil {
+		return err
+	}
+	subjectIndex := slices.Index(header, "Subject")
+	statusIndex := slices.Index(header, "Google Chrome Status")
+	certIndex := slices.Index(header, "X.509 Certificate (PEM)")
+	fingerprintIndex := slices.Index(header, "SHA-256 Fingerprint")
+
+	generated := strings.Builder{}
+	generated.WriteString(`// Code generated by 'make update_certificates'. DO NOT EDIT.
+
+package certificate
+
+import "crypto/x509"
+
+var chromeIncluded *x509.CertPool
+
+func init() {
+	chromeIncluded = x509.NewCertPool()
+`)
+	for {
+		record, err := reader.Read()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return err
+		}
+		if record[statusIndex] != "Included" {
+			continue
+		}
+		if chinaFingerprints[record[fingerprintIndex]] {
+			continue
+		}
+		generated.WriteString("\n	// ")
+		generated.WriteString(record[subjectIndex])
+		generated.WriteString("\n")
+		generated.WriteString("	chromeIncluded.AppendCertsFromPEM([]byte(`")
+		cert := record[certIndex]
+		// Remove single quotes if present
+		if len(cert) > 0 && cert[0] == '\'' {
+			cert = cert[1 : len(cert)-1]
+		}
+		generated.WriteString(cert)
+		generated.WriteString("`))\n")
+	}
+	generated.WriteString("}\n")
+	return os.WriteFile("common/certificate/chrome.go", []byte(generated.String()), 0o644)
+}

cmd/sing-box/cmd_rule_set_compile.go

@@ -6,8 +6,10 @@ import (
 	"strings"
 
 	"github.com/sagernet/sing-box/common/srs"
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-box/route/rule"
 	"github.com/sagernet/sing/common/json"
 
 	"github.com/spf13/cobra"
@@ -69,7 +71,7 @@ func compileRuleSet(sourcePath string) error {
 	if err != nil {
 		return err
 	}
-	err = srs.Write(outputFile, plainRuleSet.Options, plainRuleSet.Version)
+	err = srs.Write(outputFile, plainRuleSet.Options, downgradeRuleSetVersion(plainRuleSet.Version, plainRuleSet.Options))
 	if err != nil {
 		outputFile.Close()
 		os.Remove(outputPath)
@@ -78,3 +80,18 @@ func compileRuleSet(sourcePath string) error {
 	outputFile.Close()
 	return nil
 }
+
+func downgradeRuleSetVersion(version uint8, options option.PlainRuleSet) uint8 {
+	if version == C.RuleSetVersion4 && !rule.HasHeadlessRule(options.Rules, func(rule option.DefaultHeadlessRule) bool {
+		return rule.NetworkInterfaceAddress != nil && rule.NetworkInterfaceAddress.Size() > 0 ||
+			len(rule.DefaultInterfaceAddress) > 0
+	}) {
+		version = C.RuleSetVersion3
+	}
+	if version == C.RuleSetVersion3 && !rule.HasHeadlessRule(options.Rules, func(rule option.DefaultHeadlessRule) bool {
+		return len(rule.NetworkType) > 0 || rule.NetworkIsExpensive || rule.NetworkIsConstrained
+	}) {
+		version = C.RuleSetVersion2
+	}
+	return version
+}

cmd/sing-box/cmd_tools_fetch_http3.go

@@ -20,7 +20,7 @@ func initializeHTTP3Client(instance *box.Box) error {
 	}
 	http3Client = &http.Client{
 		Transport: &http3.Transport{
-			Dial: func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (quic.EarlyConnection, error) {
+			Dial: func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (*quic.Conn, error) {
 				destination := M.ParseSocksaddr(addr)
 				udpConn, dErr := dialer.DialContext(ctx, N.NetworkUDP, destination)
 				if dErr != nil {