fix(strelaysrv): make the session limiter session-dependent (fixes #10072) (#10073)

### Purpose

Make the session limiter only apply to current session.

### Testing

Relay 2 or more sessions and check if the sum of the connection speed
can exceed the specified per-session rate.

2 sessions (-global-rate=50000000 and -per-session-rate=6250000):


![图片](https://github.com/user-attachments/assets/133e531a-ed49-4890-aef7-821c628bcfc8)

1 session (-global-rate=50000000 and -per-session-rate=6250000):


![图片](https://github.com/user-attachments/assets/ac89ea53-2d8e-4347-9bbc-4780d85e38d7)

.github/workflows/build-infra-dockers.yaml

@@ -21,7 +21,7 @@ jobs:
     name: Build and push Docker images
     if: github.repository == 'syncthing/syncthing'
     runs-on: ubuntu-latest
-    environment: release
+    environment: docker
     strategy:
       matrix:
         pkg:

.github/workflows/build-syncthing.yaml

@@ -734,7 +734,7 @@ jobs:
           RCLONE_CONFIG_OBJSTORE_REGION: ${{ secrets.S3_REGION }}
           RCLONE_CONFIG_OBJSTORE_ACL: public-read
         with:
-          args: sync packages objstore:${{ secrets.S3_BUCKET }}/nightly
+          args: sync -v packages objstore:nightly
 
   #
   # Push release artifacts to Spaces
@@ -788,7 +788,7 @@ jobs:
           RCLONE_CONFIG_OBJSTORE_REGION: ${{ secrets.S3_REGION }}
           RCLONE_CONFIG_OBJSTORE_ACL: public-read
         with:
-          args: sync packages objstore:${{ secrets.S3_BUCKET }}/release/${{ env.VERSION }}
+          args: sync -v packages objstore:release/${{ env.VERSION }}
 
       - name: Push to object store (latest)
         uses: docker://docker.io/rclone/rclone:latest
@@ -801,7 +801,7 @@ jobs:
           RCLONE_CONFIG_OBJSTORE_REGION: ${{ secrets.S3_REGION }}
           RCLONE_CONFIG_OBJSTORE_ACL: public-read
         with:
-          args: sync objstore:${{ secrets.S3_BUCKET }}/release/${{ env.VERSION }} objstore:${{ secrets.S3_BUCKET }}/release/latest
+          args: sync -v objstore:release/${{ env.VERSION }} objstore:release/latest
 
   #
   # Push Debian/APT archive
@@ -856,7 +856,7 @@ jobs:
           RCLONE_CONFIG_OBJSTORE_REGION: ${{ secrets.S3_REGION }}
           RCLONE_CONFIG_OBJSTORE_ACL: public-read
         with:
-          args: sync objstore:syncthing-apt/dists dists
+          args: sync objstore:apt/dists dists
 
       - name: Update archive
         uses: docker://ghcr.io/kastelo/ezapt:latest
@@ -879,7 +879,7 @@ jobs:
           RCLONE_CONFIG_OBJSTORE_REGION: ${{ secrets.S3_REGION }}
           RCLONE_CONFIG_OBJSTORE_ACL: public-read
         with:
-          args: sync dists -v objstore:syncthing-apt/dists
+          args: sync -v dists objstore:apt/dists
 
   #
   # Build and push to Docker Hub

AUTHORS

@@ -223,7 +223,7 @@ Marc Laporte (marclaporte) <marc@marclaporte.com> <marc@laporte.name>
 Marc Pujol (kilburn) <kilburn@la3.org>
 Marcin Dziadus (marcindziadus) <dziadus.marcin@gmail.com>
 marco-m <marco.molteni@laposte.net>
-Marcus B Spencer <marcus@marcusspencer.xyz>
+Marcus B Spencer <marcus@marcusspencer.xyz> <marcus@marcusspencer.us>
 Marcus Legendre <marcus.legendre@gmail.com>
 Mario Majila <mariustshipichik@gmail.com>
 Mark Pulford (mpx) <mark@kyne.com.au>
@@ -277,6 +277,7 @@ Oyebanji Jacob Mayowa <oyebanji05@gmail.com>
 Pablo <pbaeyens31+github@gmail.com>
 Pascal Jungblut (pascalj) <github@pascalj.com> <mail@pascal-jungblut.com>
 Paul Brit <paulbrit44@gmail.com>
+Paul Donald <newtwen+github@gmail.com>
 Pawel Palenica (qepasa) <pawelpalenica11@gmail.com>
 Paweł Rozlach <vespian@users.noreply.github.com>
 perewa <cavalcante.ten@gmail.com>
@@ -324,8 +325,10 @@ Suhas Gundimeda (snugghash) <suhas.gundimeda@gmail.com> <snugghash@gmail.com>
 Sven Bachmann <dev@mcbachmann.de>
 Syncthing Automation <automation@syncthing.net>
 Syncthing Release Automation <release@syncthing.net>
+Sébastien WENSKE <sebastien@wenske.fr>
 Taylor Khan (nelsonkhan) <nelsonkhan@gmail.com>
 Terrance <git@terrance.allofti.me>
+TheCreeper <TheCreeper@users.noreply.github.com>
 Thomas <9749173+uhthomas@users.noreply.github.com>
 Thomas Hipp <thomashipp@gmail.com>
 Tim Abell (timabell) <tim@timwise.co.uk>

build.go

@@ -645,6 +645,9 @@ func buildDeb(target target) {
 		// than just 0.14.26. This rectifies that.
 		debver = strings.Replace(debver, "-", "~", -1)
 	}
+	if strings.Contains(debver, "_") {
+		debver = strings.Replace(debver, "_", "~", -1)
+	}
 	args := []string{
 		"-t", "deb",
 		"-s", "dir",

build.sh

@@ -23,6 +23,7 @@ case "${1:-default}" in
 
 	prerelease)
 		script authors
+		script copyrights
 		build weblate
 		pushd man ; ./refresh.sh ; popd
 		git add -A gui man AUTHORS

cmd/infra/strelaypoolsrv/README.md

@@ -10,7 +10,7 @@ to NAT or firewall issues.
 
 There is very little reason why you'd want to run this yourself, as
 `relaypoolsrv` is just used for announcement and lookup of public relay
-servers. If you are looking to setup a private or a public relay, please
+servers. If you are looking to set up a private or a public relay, please
 check the documentation for
 [relaysrv](https://github.com/syncthing/relaysrv), which also explains how
 to join the default public pool.

cmd/infra/strelaypoolsrv/main.go

@@ -29,6 +29,7 @@ import (
 	_ "github.com/syncthing/syncthing/lib/automaxprocs"
 	"github.com/syncthing/syncthing/lib/geoip"
 	"github.com/syncthing/syncthing/lib/protocol"
+	"github.com/syncthing/syncthing/lib/rand"
 	"github.com/syncthing/syncthing/lib/relay/client"
 	"github.com/syncthing/syncthing/lib/sync"
 	"github.com/syncthing/syncthing/lib/tlsutil"
@@ -110,6 +111,7 @@ var (
 	requestProcessors = 8
 	geoipLicenseKey   = os.Getenv("GEOIP_LICENSE_KEY")
 	geoipAccountID, _ = strconv.Atoi(os.Getenv("GEOIP_ACCOUNT_ID"))
+	maxRelaysReturned = 100
 
 	requests chan request
 
@@ -141,6 +143,7 @@ func main() {
 	flag.IntVar(&requestQueueLen, "request-queue", requestQueueLen, "Queue length for incoming test requests")
 	flag.IntVar(&requestProcessors, "request-processors", requestProcessors, "Number of request processor routines")
 	flag.StringVar(&geoipLicenseKey, "geoip-license-key", geoipLicenseKey, "License key for GeoIP database")
+	flag.IntVar(&maxRelaysReturned, "max-relays-returned", maxRelaysReturned, "Maximum number of relays returned for a normal endpoint query")
 
 	flag.Parse()
 
@@ -331,6 +334,10 @@ func handleEndpointShort(rw http.ResponseWriter, r *http.Request) {
 		relays = append(relays, relayShort{URL: slimURL(r.URL)})
 	}
 	mut.RUnlock()
+	if len(relays) > maxRelaysReturned {
+		rand.Shuffle(relays)
+		relays = relays[:maxRelaysReturned]
+	}
 
 	_ = json.NewEncoder(rw).Encode(map[string][]relayShort{
 		"relays": relays,

cmd/infra/stupgrades/main.go

@@ -258,9 +258,10 @@ func filterForCompabitility(rels []upgrade.Release, ua, osv string) []upgrade.Re
 }
 
 type cachedReleases struct {
-	url     string
-	mut     sync.RWMutex
-	current []upgrade.Release
+	url                  string
+	mut                  sync.RWMutex
+	current              []upgrade.Release
+	latestRel, latestPre string
 }
 
 func (c *cachedReleases) Releases() []upgrade.Release {
@@ -274,8 +275,26 @@ func (c *cachedReleases) Update(ctx context.Context) error {
 	if err != nil {
 		return err
 	}
+	latestRel, latestPre := "", ""
+	for _, rel := range rels {
+		if !rel.Prerelease && latestRel == "" {
+			latestRel = rel.Tag
+		}
+		if rel.Prerelease && latestPre == "" {
+			latestPre = rel.Tag
+		}
+		if latestRel != "" && latestPre != "" {
+			break
+		}
+	}
 	c.mut.Lock()
 	c.current = rels
+	if latestRel != c.latestRel || latestPre != c.latestPre {
+		metricLatestReleaseInfo.DeleteLabelValues(c.latestRel, c.latestPre)
+		metricLatestReleaseInfo.WithLabelValues(latestRel, latestPre).Set(1)
+		c.latestRel = latestRel
+		c.latestPre = latestPre
+	}
 	c.mut.Unlock()
 	return nil
 }

cmd/infra/stupgrades/metrics.go

@@ -27,4 +27,10 @@ var (
 		Subsystem: "upgrade",
 		Name:      "http_requests",
 	}, []string{"target", "result"})
+	metricLatestReleaseInfo = promauto.NewGaugeVec(prometheus.GaugeOpts{
+		Namespace: "syncthing",
+		Subsystem: "upgrade",
+		Name:      "latest_release_info",
+		Help:      "Release information",
+	}, []string{"latest_release", "latest_pre"})
 )

cmd/infra/ursrv/serve/serve.go

@@ -26,9 +26,11 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/puzpuzpuz/xsync/v3"
+	"github.com/syncthing/syncthing/internal/blob"
+	"github.com/syncthing/syncthing/internal/blob/azureblob"
+	"github.com/syncthing/syncthing/internal/blob/s3"
 	"github.com/syncthing/syncthing/lib/build"
 	"github.com/syncthing/syncthing/lib/geoip"
-	"github.com/syncthing/syncthing/lib/s3"
 	"github.com/syncthing/syncthing/lib/ur/contract"
 )
 
@@ -40,11 +42,15 @@ type CLI struct {
 	DumpFile        string        `env:"UR_DUMP_FILE" default:"reports.jsons.gz"`
 	DumpInterval    time.Duration `env:"UR_DUMP_INTERVAL" default:"5m"`
 
-	S3Endpoint    string `name:"s3-endpoint" hidden:"true" env:"UR_S3_ENDPOINT"`
-	S3Region      string `name:"s3-region" hidden:"true" env:"UR_S3_REGION"`
-	S3Bucket      string `name:"s3-bucket" hidden:"true" env:"UR_S3_BUCKET"`
-	S3AccessKeyID string `name:"s3-access-key-id" hidden:"true" env:"UR_S3_ACCESS_KEY_ID"`
-	S3SecretKey   string `name:"s3-secret-key" hidden:"true" env:"UR_S3_SECRET_KEY"`
+	S3Endpoint    string `name:"s3-endpoint" env:"UR_S3_ENDPOINT"`
+	S3Region      string `name:"s3-region" env:"UR_S3_REGION"`
+	S3Bucket      string `name:"s3-bucket" env:"UR_S3_BUCKET"`
+	S3AccessKeyID string `name:"s3-access-key-id" env:"UR_S3_ACCESS_KEY_ID"`
+	S3SecretKey   string `name:"s3-secret-key" env:"UR_S3_SECRET_KEY"`
+
+	AzureBlobAccount   string `name:"azure-blob-account" env:"UR_AZUREBLOB_ACCOUNT"`
+	AzureBlobKey       string `name:"azure-blob-key" env:"UR_AZUREBLOB_KEY"`
+	AzureBlobContainer string `name:"azure-blob-container" env:"UR_AZUREBLOB_CONTAINER"`
 }
 
 var (
@@ -77,6 +83,7 @@ var (
 		{regexp.MustCompile(`\ssyncthing@archlinux`), "Arch (3rd party)"},
 		{regexp.MustCompile(`@debian`), "Debian (3rd party)"},
 		{regexp.MustCompile(`@fedora`), "Fedora (3rd party)"},
+		{regexp.MustCompile(`@openSUSE`), "openSUSE (3rd party)"},
 		{regexp.MustCompile(`\sbrew@`), "Homebrew (3rd party)"},
 		{regexp.MustCompile(`\sroot@buildkitsandbox`), "LinuxServer.io (3rd party)"},
 		{regexp.MustCompile(`\sports@freebsd`), "FreeBSD (3rd party)"},
@@ -119,19 +126,25 @@ func (cli *CLI) Run() error {
 		go geo.Serve(context.TODO())
 	}
 
-	// s3
+	// Blob storage
 
-	var s3sess *s3.Session
+	var blobs blob.Store
 	if cli.S3Endpoint != "" {
-		s3sess, err = s3.NewSession(cli.S3Endpoint, cli.S3Region, cli.S3Bucket, cli.S3AccessKeyID, cli.S3SecretKey)
+		blobs, err = s3.NewSession(cli.S3Endpoint, cli.S3Region, cli.S3Bucket, cli.S3AccessKeyID, cli.S3SecretKey)
 		if err != nil {
 			slog.Error("Failed to create S3 session", "error", err)
 			return err
 		}
+	} else if cli.AzureBlobAccount != "" {
+		blobs, err = azureblob.NewBlobStore(cli.AzureBlobAccount, cli.AzureBlobKey, cli.AzureBlobContainer)
+		if err != nil {
+			slog.Error("Failed to create Azure blob store", "error", err)
+			return err
+		}
 	}
 
-	if _, err := os.Stat(cli.DumpFile); err != nil && s3sess != nil {
-		if err := cli.downloadDumpFile(s3sess); err != nil {
+	if _, err := os.Stat(cli.DumpFile); err != nil && blobs != nil {
+		if err := cli.downloadDumpFile(blobs); err != nil {
 			slog.Error("Failed to download dump file", "error", err)
 		}
 	}
@@ -153,7 +166,7 @@ func (cli *CLI) Run() error {
 
 	go func() {
 		for range time.Tick(cli.DumpInterval) {
-			if err := cli.saveDumpFile(srv, s3sess); err != nil {
+			if err := cli.saveDumpFile(srv, blobs); err != nil {
 				slog.Error("Failed to write dump file", "error", err)
 			}
 		}
@@ -192,8 +205,8 @@ func (cli *CLI) Run() error {
 	return metricsSrv.Serve(urListener)
 }
 
-func (cli *CLI) downloadDumpFile(s3sess *s3.Session) error {
-	latestKey, err := s3sess.LatestKey()
+func (cli *CLI) downloadDumpFile(blobs blob.Store) error {
+	latestKey, err := blobs.LatestKey(context.Background())
 	if err != nil {
 		return fmt.Errorf("list latest S3 key: %w", err)
 	}
@@ -201,7 +214,7 @@ func (cli *CLI) downloadDumpFile(s3sess *s3.Session) error {
 	if err != nil {
 		return fmt.Errorf("create dump file: %w", err)
 	}
-	if err := s3sess.Download(fd, latestKey); err != nil {
+	if err := blobs.Download(context.Background(), latestKey, fd); err != nil {
 		_ = fd.Close()
 		return fmt.Errorf("download dump file: %w", err)
 	}
@@ -212,7 +225,7 @@ func (cli *CLI) downloadDumpFile(s3sess *s3.Session) error {
 	return nil
 }
 
-func (cli *CLI) saveDumpFile(srv *server, s3sess *s3.Session) error {
+func (cli *CLI) saveDumpFile(srv *server, blobs blob.Store) error {
 	fd, err := os.Create(cli.DumpFile + ".tmp")
 	if err != nil {
 		return fmt.Errorf("creating dump file: %w", err)
@@ -233,13 +246,13 @@ func (cli *CLI) saveDumpFile(srv *server, s3sess *s3.Session) error {
 	}
 	slog.Info("Dump file saved")
 
-	if s3sess != nil {
+	if blobs != nil {
 		key := fmt.Sprintf("reports-%s.jsons.gz", time.Now().UTC().Format("2006-01-02"))
 		fd, err := os.Open(cli.DumpFile)
 		if err != nil {
 			return fmt.Errorf("opening dump file: %w", err)
 		}
-		if err := s3sess.Upload(fd, key); err != nil {
+		if err := blobs.Upload(context.Background(), key, fd); err != nil {
 			return fmt.Errorf("uploading dump file: %w", err)
 		}
 		_ = fd.Close()
@@ -351,6 +364,9 @@ func (s *server) addReport(rep *contract.Report) bool {
 			break
 		}
 	}
+	rep.DistDist = rep.Distribution
+	rep.DistOS = rep.OS
+	rep.DistArch = rep.Arch
 
 	_, loaded := s.reports.LoadAndStore(rep.UniqueID, rep)
 	return loaded

cmd/stdiscosrv/apisrv.go

@@ -66,7 +66,7 @@ type contextKey int
 
 const idKey contextKey = iota
 
-func newAPISrv(addr string, cert tls.Certificate, db database, repl replicator, useHTTP, compression bool) *apiSrv {
+func newAPISrv(addr string, cert tls.Certificate, db database, repl replicator, useHTTP, compression bool, desiredNotFoundRate float64) *apiSrv {
 	return &apiSrv{
 		addr:        addr,
 		cert:        cert,
@@ -77,13 +77,13 @@ func newAPISrv(addr string, cert tls.Certificate, db database, repl replicator,
 		seenTracker: &retryAfterTracker{
 			name:         "seenTracker",
 			bucketStarts: time.Now(),
-			desiredRate:  250,
+			desiredRate:  desiredNotFoundRate / 2,
 			currentDelay: notFoundRetryUnknownMinSeconds,
 		},
 		notSeenTracker: &retryAfterTracker{
 			name:         "notSeenTracker",
 			bucketStarts: time.Now(),
-			desiredRate:  250,
+			desiredRate:  desiredNotFoundRate / 2,
 			currentDelay: notFoundRetryUnknownMaxSeconds / 2,
 		},
 	}

cmd/stdiscosrv/apisrv_test.go

@@ -111,7 +111,7 @@ func BenchmarkAPIRequests(b *testing.B) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 	go db.Serve(ctx)
-	api := newAPISrv("127.0.0.1:0", tls.Certificate{}, db, nil, true, true)
+	api := newAPISrv("127.0.0.1:0", tls.Certificate{}, db, nil, true, true, 1000)
 	srv := httptest.NewServer(http.HandlerFunc(api.handler))
 
 	kf := b.TempDir() + "/cert"

cmd/stdiscosrv/database.go

@@ -24,11 +24,11 @@ import (
 	"github.com/puzpuzpuz/xsync/v3"
 	"google.golang.org/protobuf/proto"
 
+	"github.com/syncthing/syncthing/internal/blob"
 	"github.com/syncthing/syncthing/internal/gen/discosrv"
 	"github.com/syncthing/syncthing/internal/protoutil"
 	"github.com/syncthing/syncthing/lib/protocol"
 	"github.com/syncthing/syncthing/lib/rand"
-	"github.com/syncthing/syncthing/lib/s3"
 )
 
 type clock interface {
@@ -51,12 +51,12 @@ type inMemoryStore struct {
 	m             *xsync.MapOf[protocol.DeviceID, *discosrv.DatabaseRecord]
 	dir           string
 	flushInterval time.Duration
-	s3            *s3.Session
+	blobs         blob.Store
 	objKey        string
 	clock         clock
 }
 
-func newInMemoryStore(dir string, flushInterval time.Duration, s3sess *s3.Session) *inMemoryStore {
+func newInMemoryStore(dir string, flushInterval time.Duration, blobs blob.Store) *inMemoryStore {
 	hn, err := os.Hostname()
 	if err != nil {
 		hn = rand.String(8)
@@ -65,25 +65,25 @@ func newInMemoryStore(dir string, flushInterval time.Duration, s3sess *s3.Sessio
 		m:             xsync.NewMapOf[protocol.DeviceID, *discosrv.DatabaseRecord](),
 		dir:           dir,
 		flushInterval: flushInterval,
-		s3:            s3sess,
+		blobs:         blobs,
 		objKey:        hn + ".db",
 		clock:         defaultClock{},
 	}
 	nr, err := s.read()
-	if os.IsNotExist(err) && s3sess != nil {
-		// Try to read from AWS
-		latestKey, cerr := s3sess.LatestKey()
+	if os.IsNotExist(err) && blobs != nil {
+		// Try to read from blob storage
+		latestKey, cerr := blobs.LatestKey(context.Background())
 		if cerr != nil {
-			log.Println("Error reading database from S3:", err)
+			log.Println("Error finding database from blob storage:", cerr)
 			return s
 		}
 		fd, cerr := os.Create(path.Join(s.dir, "records.db"))
 		if cerr != nil {
-			log.Println("Error creating database file:", err)
+			log.Println("Error creating database file:", cerr)
 			return s
 		}
-		if cerr := s3sess.Download(fd, latestKey); cerr != nil {
-			log.Printf("Error reading database from S3: %v", err)
+		if cerr := blobs.Download(context.Background(), latestKey, fd); cerr != nil {
+			log.Printf("Error downloading database from blob storage: %v", cerr)
 		}
 		_ = fd.Close()
 		nr, err = s.read()
@@ -310,16 +310,16 @@ func (s *inMemoryStore) write() (err error) {
 		return err
 	}
 
-	// Upload to S3
-	if s.s3 != nil {
+	// Upload to blob storage
+	if s.blobs != nil {
 		fd, err = os.Open(dbf)
 		if err != nil {
-			log.Printf("Error uploading database to S3: %v", err)
+			log.Printf("Error uploading database to blob storage: %v", err)
 			return nil
 		}
 		defer fd.Close()
-		if err := s.s3.Upload(fd, s.objKey); err != nil {
-			log.Printf("Error uploading database to S3: %v", err)
+		if err := s.blobs.Upload(context.Background(), s.objKey, fd); err != nil {
+			log.Printf("Error uploading database to blob storage: %v", err)
 		}
 		log.Println("Finished uploading database")
 	}

cmd/stdiscosrv/main.go

@@ -21,11 +21,13 @@ import (
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/thejerf/suture/v4"
 
+	"github.com/syncthing/syncthing/internal/blob"
+	"github.com/syncthing/syncthing/internal/blob/azureblob"
+	"github.com/syncthing/syncthing/internal/blob/s3"
 	_ "github.com/syncthing/syncthing/lib/automaxprocs"
 	"github.com/syncthing/syncthing/lib/build"
 	"github.com/syncthing/syncthing/lib/protocol"
 	"github.com/syncthing/syncthing/lib/rand"
-	"github.com/syncthing/syncthing/lib/s3"
 	"github.com/syncthing/syncthing/lib/tlsutil"
 )
 
@@ -58,12 +60,13 @@ const (
 var debug = false
 
 type CLI struct {
-	Cert          string `group:"Listen" help:"Certificate file" default:"./cert.pem" env:"DISCOVERY_CERT_FILE"`
-	Key           string `group:"Listen" help:"Key file" default:"./key.pem" env:"DISCOVERY_KEY_FILE"`
-	HTTP          bool   `group:"Listen" help:"Listen on HTTP (behind an HTTPS proxy)" env:"DISCOVERY_HTTP"`
-	Compression   bool   `group:"Listen" help:"Enable GZIP compression of responses" env:"DISCOVERY_COMPRESSION"`
-	Listen        string `group:"Listen" help:"Listen address" default:":8443" env:"DISCOVERY_LISTEN"`
-	MetricsListen string `group:"Listen" help:"Metrics listen address" env:"DISCOVERY_METRICS_LISTEN"`
+	Cert                string  `group:"Listen" help:"Certificate file" default:"./cert.pem" env:"DISCOVERY_CERT_FILE"`
+	Key                 string  `group:"Listen" help:"Key file" default:"./key.pem" env:"DISCOVERY_KEY_FILE"`
+	HTTP                bool    `group:"Listen" help:"Listen on HTTP (behind an HTTPS proxy)" env:"DISCOVERY_HTTP"`
+	Compression         bool    `group:"Listen" help:"Enable GZIP compression of responses" env:"DISCOVERY_COMPRESSION"`
+	Listen              string  `group:"Listen" help:"Listen address" default:":8443" env:"DISCOVERY_LISTEN"`
+	MetricsListen       string  `group:"Listen" help:"Metrics listen address" env:"DISCOVERY_METRICS_LISTEN"`
+	DesiredNotFoundRate float64 `group:"Listen" help:"Desired maximum rate of not-found replies (/s)" default:"1000"`
 
 	DBDir           string        `group:"Database" help:"Database directory" default:"." env:"DISCOVERY_DB_DIR"`
 	DBFlushInterval time.Duration `group:"Database" help:"Interval between database flushes" default:"5m" env:"DISCOVERY_DB_FLUSH_INTERVAL"`
@@ -74,6 +77,10 @@ type CLI struct {
 	DBS3AccessKeyID string `name:"db-s3-access-key-id" group:"Database (S3 backup)" hidden:"true" help:"S3 access key ID for database" env:"DISCOVERY_DB_S3_ACCESS_KEY_ID"`
 	DBS3SecretKey   string `name:"db-s3-secret-key" group:"Database (S3 backup)" hidden:"true" help:"S3 secret key for database" env:"DISCOVERY_DB_S3_SECRET_KEY"`
 
+	DBAzureBlobAccount   string `name:"db-azure-blob-account" env:"DISCOVERY_DB_AZUREBLOB_ACCOUNT"`
+	DBAzureBlobKey       string `name:"db-azure-blob-key" env:"DISCOVERY_DB_AZUREBLOB_KEY"`
+	DBAzureBlobContainer string `name:"db-azure-blob-container" env:"DISCOVERY_DB_AZUREBLOB_CONTAINER"`
+
 	AMQPAddress string `group:"AMQP replication" hidden:"true" help:"Address to AMQP broker" env:"DISCOVERY_AMQP_ADDRESS"`
 
 	Debug   bool `short:"d" help:"Print debug output" env:"DISCOVERY_DEBUG"`
@@ -117,18 +124,20 @@ func main() {
 		Timeout:           2 * time.Minute,
 	})
 
-	// If configured, use S3 for database backups.
-	var s3c *s3.Session
+	// If configured, use blob storage for database backups.
+	var blobs blob.Store
+	var err error
 	if cli.DBS3Endpoint != "" {
-		var err error
-		s3c, err = s3.NewSession(cli.DBS3Endpoint, cli.DBS3Region, cli.DBS3Bucket, cli.DBS3AccessKeyID, cli.DBS3SecretKey)
-		if err != nil {
-			log.Fatalf("Failed to create S3 session: %v", err)
-		}
+		blobs, err = s3.NewSession(cli.DBS3Endpoint, cli.DBS3Region, cli.DBS3Bucket, cli.DBS3AccessKeyID, cli.DBS3SecretKey)
+	} else if cli.DBAzureBlobAccount != "" {
+		blobs, err = azureblob.NewBlobStore(cli.DBAzureBlobAccount, cli.DBAzureBlobKey, cli.DBAzureBlobContainer)
+	}
+	if err != nil {
+		log.Fatalf("Failed to create blob store: %v", err)
 	}
 
 	// Start the database.
-	db := newInMemoryStore(cli.DBDir, cli.DBFlushInterval, s3c)
+	db := newInMemoryStore(cli.DBDir, cli.DBFlushInterval, blobs)
 	main.Add(db)
 
 	// If we have an AMQP broker for replication, start that
@@ -141,7 +150,7 @@ func main() {
 	}
 
 	// Start the main API server.
-	qs := newAPISrv(cli.Listen, cert, db, repl, cli.HTTP, cli.Compression)
+	qs := newAPISrv(cli.Listen, cert, db, repl, cli.HTTP, cli.Compression, cli.DesiredNotFoundRate)
 	main.Add(qs)
 
 	// If we have a metrics port configured, start a metrics handler.

cmd/strelaysrv/listener.go

@@ -184,7 +184,7 @@ func protocolConnectionHandler(tcpConn net.Conn, config *tls.Config, token strin
 					continue
 				}
 				// requestedPeer is the server, id is the client
-				ses := newSession(requestedPeer, id, sessionLimiter, globalLimiter)
+				ses := newSession(requestedPeer, id, sessionLimitBps, globalLimiter)
 
 				go ses.Serve()
 

cmd/strelaysrv/main.go

@@ -51,7 +51,6 @@ var (
 	globalLimitBps    int
 	overLimit         atomic.Bool
 	descriptorLimit   int64
-	sessionLimiter    *rate.Limiter
 	globalLimiter     *rate.Limiter
 	networkBufferSize int
 
@@ -228,9 +227,6 @@ func main() {
 		}
 	}
 
-	if sessionLimitBps > 0 {
-		sessionLimiter = rate.NewLimiter(rate.Limit(sessionLimitBps), 2*sessionLimitBps)
-	}
 	if globalLimitBps > 0 {
 		globalLimiter = rate.NewLimiter(rate.Limit(globalLimitBps), 2*globalLimitBps)
 	}

cmd/strelaysrv/session.go

@@ -27,7 +27,7 @@ var (
 	bytesProxied    atomic.Int64
 )
 
-func newSession(serverid, clientid syncthingprotocol.DeviceID, sessionRateLimit, globalRateLimit *rate.Limiter) *session {
+func newSession(serverid, clientid syncthingprotocol.DeviceID, sessionLimitBps int, globalRateLimit *rate.Limiter) *session {
 	serverkey := make([]byte, 32)
 	_, err := rand.Read(serverkey)
 	if err != nil {
@@ -40,12 +40,17 @@ func newSession(serverid, clientid syncthingprotocol.DeviceID, sessionRateLimit,
 		return nil
 	}
 
+	var sessionRateLimit *rate.Limiter
+	if sessionLimitBps > 0 {
+		sessionRateLimit = rate.NewLimiter(rate.Limit(sessionLimitBps), 2*sessionLimitBps)
+	}
 	ses := &session{
 		serverkey: serverkey,
 		serverid:  serverid,
 		clientkey: clientkey,
 		clientid:  clientid,
 		rateLimit: makeRateLimitFunc(sessionRateLimit, globalRateLimit),
+		limiter:   sessionRateLimit,
 		connsChan: make(chan net.Conn),
 		conns:     make([]net.Conn, 0, 2),
 	}
@@ -109,6 +114,7 @@ type session struct {
 	clientid  syncthingprotocol.DeviceID
 
 	rateLimit func(bytes int)
+	limiter   *rate.Limiter
 
 	connsChan chan net.Conn
 	conns     []net.Conn

cmd/syncthing/main.go

@@ -376,7 +376,7 @@ func (options serveOptions) Run() error {
 	if options.Upgrade {
 		release, err := checkUpgrade()
 		if err == nil {
-			lf := flock.New(locations.Get(locations.CertFile))
+			lf := flock.New(locations.Get(locations.LockFile))
 			locked, err := lf.TryLock()
 			if err != nil {
 				l.Warnln("Upgrade:", err)
@@ -386,6 +386,8 @@ func (options serveOptions) Run() error {
 			} else {
 				err = upgrade.To(release)
 			}
+			_ = lf.Unlock()
+			_ = os.Remove(locations.Get(locations.LockFile))
 		}
 		if err != nil {
 			l.Warnln("Upgrade:", err)
@@ -546,7 +548,7 @@ func syncthingMain(options serveOptions) {
 	}
 
 	// Ensure we are the only running instance
-	lf := flock.New(locations.Get(locations.CertFile))
+	lf := flock.New(locations.Get(locations.LockFile))
 	locked, err := lf.TryLock()
 	if err != nil {
 		l.Warnln("Failed to acquire lock:", err)
@@ -636,9 +638,21 @@ func syncthingMain(options serveOptions) {
 		DBRecheckInterval:    options.DebugDBRecheckInterval,
 		DBIndirectGCInterval: options.DebugDBIndirectGCInterval,
 	}
-	if options.Audit {
-		appOpts.AuditWriter = auditWriter(options.AuditFile)
+
+	if options.Audit || cfgWrapper.Options().AuditEnabled {
+		l.Infoln("Auditing is enabled.")
+
+		auditFile := cfgWrapper.Options().AuditFile
+
+		// Ignore config option if command-line option is set
+		if options.AuditFile != "" {
+			l.Debugln("Using the audit file from the command-line parameter.")
+			auditFile = options.AuditFile
+		}
+
+		appOpts.AuditWriter = auditWriter(auditFile)
 	}
+
 	if dur, err := time.ParseDuration(os.Getenv("STRECHECKDBEVERY")); err == nil {
 		appOpts.DBRecheckInterval = dur
 	}
@@ -692,6 +706,10 @@ func syncthingMain(options serveOptions) {
 		pprof.StopCPUProfile()
 	}
 
+	// Best effort remove lockfile, doesn't matter if it succeeds
+	_ = lf.Unlock()
+	_ = os.Remove(locations.Get(locations.LockFile))
+
 	os.Exit(int(status))
 }
 

cmd/syncthing/monitor.go

@@ -64,7 +64,7 @@ func monitorMain(options serveOptions) {
 			fileDst, err = open(logFile)
 		}
 		if err != nil {
-			l.Warnln("Failed to setup logging to file, proceeding with logging to stdout only:", err)
+			l.Warnln("Failed to set up logging to file, proceeding with logging to stdout only:", err)
 		} else {
 			if build.IsWindows {
 				// Translate line breaks to Windows standard

go.mod

@@ -4,6 +4,7 @@ go 1.23.0
 
 require (
 	github.com/AudriusButkevicius/recli v0.0.7-0.20220911121932-d000ce8fbf0f
+	github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.6.0
 	github.com/alecthomas/kong v1.10.0
 	github.com/aws/aws-sdk-go v1.55.6
 	github.com/calmh/incontainer v1.0.0
@@ -51,6 +52,8 @@ require (
 )
 
 require (
+	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.17.0 // indirect
+	github.com/Azure/azure-sdk-for-go/sdk/internal v1.10.0 // indirect
 	github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect

go.sum

@@ -1,7 +1,19 @@
 github.com/AudriusButkevicius/recli v0.0.7-0.20220911121932-d000ce8fbf0f h1:GmH5lT+moM7PbAJFBq57nH9WJ+wRnBXr/tyaYWbSAx8=
 github.com/AudriusButkevicius/recli v0.0.7-0.20220911121932-d000ce8fbf0f/go.mod h1:Nhfib1j/VFnLrXL9cHgA+/n2O6P5THuWelOnbfPNd78=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.17.0 h1:g0EZJwz7xkXQiZAI5xi9f3WWFYBlX1CPTrR+NDToRkQ=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.17.0/go.mod h1:XCW7KnZet0Opnr7HccfUw1PLc4CjHqpcaxW8DHklNkQ=
+github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.8.0 h1:B/dfvscEQtew9dVuoxqxrUKKv8Ih2f55PydknDamU+g=
+github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.8.0/go.mod h1:fiPSssYvltE08HJchL04dOy+RD4hgrjph0cwGGMntdI=
+github.com/Azure/azure-sdk-for-go/sdk/internal v1.10.0 h1:ywEEhmNahHBihViHepv3xPBn1663uRv2t2q/ESv9seY=
+github.com/Azure/azure-sdk-for-go/sdk/internal v1.10.0/go.mod h1:iZDifYGJTIgIIkYRNWPENUnqx6bJ2xnSDFI2tjwZNuY=
+github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/storage/armstorage v1.6.0 h1:PiSrjRPpkQNjrM8H0WwKMnZUdu1RGMtd/LdGKUrOo+c=
+github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/storage/armstorage v1.6.0/go.mod h1:oDrbWx4ewMylP7xHivfgixbfGBT6APAwsSoHRKotnIc=
+github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.6.0 h1:UXT0o77lXQrikd1kgwIPQOUect7EoR/+sbP4wQKdzxM=
+github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.6.0/go.mod h1:cTvi54pg19DoT07ekoeMgE/taAwNtCShVeZqA+Iv2xI=
 github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 h1:mFRzDkZVAjdal+s7s0MwaRv9igoPqLRdzOLzw/8Xvq8=
 github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU=
+github.com/AzureAD/microsoft-authentication-library-for-go v1.3.2 h1:kYRSnvJju5gYVyhkij+RTJ/VR6QIUaCfWeaFm2ycsjQ=
+github.com/AzureAD/microsoft-authentication-library-for-go v1.3.2/go.mod h1:wP83P5OoQ5p6ip3ScPr0BAq0BvuPAvacpEuSzyouqAI=
 github.com/BurntSushi/toml v1.4.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/alecthomas/assert/v2 v2.11.0 h1:2Q9r3ki8+JYXvGsDyBXwH3LcJ+WK5D0gc5E8vS6K3D0=
 github.com/alecthomas/assert/v2 v2.11.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
@@ -65,6 +77,8 @@ github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1v
 github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8=
 github.com/gofrs/flock v0.12.1 h1:MTLVXXHf8ekldpJk3AKicLij9MdwOWkZ+a/jHHZby9E=
 github.com/gofrs/flock v0.12.1/go.mod h1:9zxTsyu5xtJ9DK+1tFZyibEV7y3uwDxPPfbxeeHCoD0=
+github.com/golang-jwt/jwt/v5 v5.2.1 h1:OuVbFODueb089Lh128TAcimifWaLhJwVflnrgM17wHk=
+github.com/golang-jwt/jwt/v5 v5.2.1/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
 github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
@@ -176,6 +190,8 @@ github.com/oschwald/maxminddb-golang v1.13.1 h1:G3wwjdN9JmIK2o/ermkHM+98oX5fS+k5
 github.com/oschwald/maxminddb-golang v1.13.1/go.mod h1:K4pgV9N/GcK694KSTmVSDTODk4IsCNThNdTmnaBZ/F8=
 github.com/pierrec/lz4/v4 v4.1.22 h1:cKFw6uJDK+/gfw5BcDL0JL5aBsAFdsIT18eRtLj7VIU=
 github.com/pierrec/lz4/v4 v4.1.22/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4=
+github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c h1:+mdjkGKdHQG3305AYmdv1U2eRNDiU2ErMBj1gwrq8eQ=
+github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c/go.mod h1:7rwL4CYBLnjLxUqIJNnCWiEdr3bn6IUYi15bNlnbCCU=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -205,8 +221,8 @@ github.com/rcrowley/go-metrics v0.0.0-20250401214520-65e299d6c5c9 h1:bsUq1dX0N8A
 github.com/rcrowley/go-metrics v0.0.0-20250401214520-65e299d6c5c9/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/riywo/loginshell v0.0.0-20200815045211-7d26008be1ab h1:ZjX6I48eZSFetPb41dHudEyVr5v953N15TsNZXlkcWY=
 github.com/riywo/loginshell v0.0.0-20200815045211-7d26008be1ab/go.mod h1:/PfPXh0EntGc3QAAyUaviy4S9tzy4Zp0e2ilq4voC6E=
-github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
-github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
+github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
+github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/sclevine/spec v1.4.0 h1:z/Q9idDcay5m5irkZ28M7PtQM4aOISzOpj4bUPkDee8=

gui/default/assets/lang/lang-ar.json

@@ -154,7 +154,7 @@
     "Failed Items": "العناصر الفاشلة",
     "Failed to load file versions.": "لم يُتَوَصَّل لنسخة الملف.",
     "Failed to load ignore patterns.": "فشل التَّوَصُّل إلى مُرَشِّحات التجاهل.",
-    "Failed to setup, retrying": "فشل الإعداد، تجري المحاولة مرة أخرى",
+    "Failed to set up, retrying": "فشل الإعداد، تجري المحاولة مرة أخرى",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "يُتوقع فشل الاتصال بخوادم IPv6، إذا لم يكن IPv6 متاحا.",
     "File Pull Order": "ترتيب استيراد الملفات",
     "File Versioning": "إصدارات الملف",

gui/default/assets/lang/lang-bg.json

@@ -156,7 +156,7 @@
     "Failed Items": "Елементи с грешка",
     "Failed to load file versions.": "Грешка при зареждане на версии.",
     "Failed to load ignore patterns.": "Грешка при зареждане на шаблони за пренебрегване.",
-    "Failed to setup, retrying": "Грешка при настройване, извършва се повторен опит",
+    "Failed to set up, retrying": "Грешка при настройване, извършва се повторен опит",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Неуспешна връзка към сървъри по IPv6 може да се очаква ако няма свързаност по IPv6.",
     "File Pull Order": "Ред на изтегляне",
     "File Versioning": "Версии на файловете",

gui/default/assets/lang/lang-ca.json

@@ -154,7 +154,7 @@
     "Failed Items": "Elements fallats",
     "Failed to load file versions.": "No s'han pogut carregar les versions dels fitxers.",
     "Failed to load ignore patterns.": "No s'han pogut carregar els patrons ignorats.",
-    "Failed to setup, retrying": "No s'ha pogut configurar, s'està tornant a provar",
+    "Failed to set up, retrying": "No s'ha pogut configurar, s'està tornant a provar",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "S'espera que no es pugui connectar als servidors IPv6 si no hi ha connectivitat IPv6.",
     "File Pull Order": "Ordre d'agafar fitxers",
     "File Versioning": "Versionat de Fitxers",

gui/default/assets/lang/lang-ca@valencia.json

@@ -150,7 +150,7 @@
     "Failed Items": "Objectes fallits",
     "Failed to load file versions.": "No s'han pogut carregar les versions dels fitxers.",
     "Failed to load ignore patterns.": "No s'han pogut carregar els patrons ignorats.",
-    "Failed to setup, retrying": "Errada en la configuració, reintentant",
+    "Failed to set up, retrying": "Errada en la configuració, reintentant",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "És possible que es produïsca una fallada al connectar als servidors IPv6 si no hi ha connectivitat IPv6.",
     "File Pull Order": "Ordre de fitxers del pull",
     "File Versioning": "Versionat de fitxer",

gui/default/assets/lang/lang-cs.json

@@ -154,7 +154,7 @@
     "Failed Items": "Nezdařené položky",
     "Failed to load file versions.": "Nepodařilo se nahrát verze souboru.",
     "Failed to load ignore patterns.": "Načtení vzorů ignorovaného se nezdařilo.",
-    "Failed to setup, retrying": "Nastavování se nezdařilo, zkouší se znovu",
+    "Failed to set up, retrying": "Nastavování se nezdařilo, zkouší se znovu",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Je v pořádku, když se připojení k IPv6 serverům nezdaří, pokud není k dispozici IPv6 konektivita.",
     "File Pull Order": "Pořadí stahování souborů",
     "File Versioning": "Správa verzí souborů",

gui/default/assets/lang/lang-da.json

@@ -154,7 +154,7 @@
     "Failed Items": "Mislykkede filer",
     "Failed to load file versions.": "Fil versioner kunne ikke indlæses.",
     "Failed to load ignore patterns.": "Ignorerings-mønstre kunne ikke indlæses.",
-    "Failed to setup, retrying": "Opsætning mislykkedes; prøver igen",
+    "Failed to set up, retrying": "Opsætning mislykkedes; prøver igen",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Fejl i forbindelse med opkobling til IPv6-servere skal forventes, hvis der ikke er IPv6-forbindelse.",
     "File Pull Order": "Hentningsrækkefølge for filer",
     "File Versioning": "Filversionering",

gui/default/assets/lang/lang-de.json

@@ -156,7 +156,7 @@
     "Failed Items": "Fehlgeschlagene Elemente",
     "Failed to load file versions.": "Fehler beim Laden der Dateiversionen.",
     "Failed to load ignore patterns.": "Fehler beim Laden der Ignoriermuster.",
-    "Failed to setup, retrying": "Fehler beim Einrichten, erneuter Versuch",
+    "Failed to set up, retrying": "Fehler beim Einrichten, erneuter Versuch",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Ein Verbindungsfehler zu IPv6-Servern ist zu erwarten, wenn es keine IPv6-Konnektivität gibt.",
     "File Pull Order": "Dateiübertragungsreihenfolge",
     "File Versioning": "Dateiversionierung",

gui/default/assets/lang/lang-el.json

@@ -154,7 +154,7 @@
     "Failed Items": "Αρχεία που απέτυχαν",
     "Failed to load file versions.": "Η φόρτωση των εκδόσεων αρχείων απέτυχε.",
     "Failed to load ignore patterns.": "Αποτυχία φόρτωσης μοτίβων παράβλεψης.",
-    "Failed to setup, retrying": "Αποτυχία ενεργοποίησης, γίνεται νέα προσπάθεια",
+    "Failed to set up, retrying": "Αποτυχία ενεργοποίησης, γίνεται νέα προσπάθεια",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Είναι φυσιολογική η αποτυχία σύνδεσης σε εξυπηρετητές IPv6 όταν δεν υπάρχει συνδεσιμότητα IPv6.",
     "File Pull Order": "Σειρά με την οποία θα κατεβαίνουν τα αρχεία",
     "File Versioning": "Τήρηση εκδόσεων αρχείων",

gui/default/assets/lang/lang-en-AU.json

@@ -150,7 +150,7 @@
     "Failed Items": "Failed Items",
     "Failed to load file versions.": "Failed to load file versions.",
     "Failed to load ignore patterns.": "Failed to load ignore patterns.",
-    "Failed to setup, retrying": "Failed to setup, retrying",
+    "Failed to set up, retrying": "Failed to set up, retrying",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.",
     "File Pull Order": "File Pull Order",
     "File Versioning": "File Versioning",

gui/default/assets/lang/lang-en-GB.json

@@ -27,6 +27,7 @@
     "Allowed Networks": "Allowed Networks",
     "Alphabetic": "Alphabetic",
     "Altered by ignoring deletes.": "Altered by ignoring deletes.",
+    "Always turned on when the folder type is \"{%foldertype%}\".": "Always turned on when the folder type is \"{{foldertype}}\".",
     "An external command handles the versioning. It has to remove the file from the shared folder. If the path to the application contains spaces, it should be quoted.": "An external command handles the versioning. It has to remove the file from the shared folder. If the path to the application contains spaces, it should be quoted.",
     "Anonymous Usage Reporting": "Anonymous Usage Reporting",
     "Anonymous usage report format has changed. Would you like to move to the new format?": "Anonymous usage report format has changed. Would you like to move to the new format?",
@@ -52,6 +53,7 @@
     "Body:": "Body:",
     "Bugs": "Bugs",
     "Cancel": "Cancel",
+    "Cannot be enabled when the folder type is \"{%foldertype%}\".": "Cannot be enabled when the folder type is \"{{foldertype}}\".",
     "Changelog": "Changelog",
     "Clean out after": "Clean out after",
     "Cleaning Versions": "Cleaning Versions",
@@ -154,7 +156,7 @@
     "Failed Items": "Failed Items",
     "Failed to load file versions.": "Failed to load file versions.",
     "Failed to load ignore patterns.": "Failed to load ignore patterns.",
-    "Failed to setup, retrying": "Failed to setup, retrying",
+    "Failed to set up, retrying": "Failed to set up, retrying",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.",
     "File Pull Order": "File Pull Order",
     "File Versioning": "File Versioning",

gui/default/assets/lang/lang-en.json

@@ -156,7 +156,7 @@
     "Failed Items": "Failed Items",
     "Failed to load file versions.": "Failed to load file versions.",
     "Failed to load ignore patterns.": "Failed to load ignore patterns.",
-    "Failed to setup, retrying": "Failed to setup, retrying",
+    "Failed to set up, retrying": "Failed to set up, retrying",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.",
     "File Pull Order": "File Pull Order",
     "File Versioning": "File Versioning",

gui/default/assets/lang/lang-eo.json

@@ -106,7 +106,7 @@
     "Error": "Eraro",
     "External File Versioning": "Ekstera Versionado de Dosiero",
     "Failed Items": "Malsukcesaj Eroj",
-    "Failed to setup, retrying": "Malsukcesis agordi, provante denove",
+    "Failed to set up, retrying": "Malsukcesis agordi, provante denove",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Malsukceso por konekti al IPv6 serviloj atendante se ekzistas neniu IPv6 konektebleco.",
     "File Pull Order": "Ordo por Tiri Dosieron",
     "File Versioning": "Versionado de Dosieroj",

gui/default/assets/lang/lang-es.json

@@ -154,7 +154,7 @@
     "Failed Items": "Elementos fallidos",
     "Failed to load file versions.": "Error al cargar las versiones de los archivos.",
     "Failed to load ignore patterns.": "No se pudieron cargar los patrones de ignorar.",
-    "Failed to setup, retrying": "Fallo en la configuración, reintentando",
+    "Failed to set up, retrying": "Fallo en la configuración, reintentando",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Se espera un fallo al conectar a los servidores IPv6 si no hay conectividad IPv6.",
     "File Pull Order": "Orden de Obtención de los Archivos",
     "File Versioning": "Versionado de ficheros",

gui/default/assets/lang/lang-et.json

@@ -9,9 +9,15 @@
     "Add Folder": "Lisa kaust",
     "Add new folder?": "Lisa uus kaust?",
     "Address": "Aadress",
+    "Addresses": "Aadressid",
+    "All Data": "Kõik andmed",
+    "All Time": "Kõik ajad",
+    "Allowed Networks": "Lubatud võrgud",
     "Alphabetic": "Tähestikuline",
     "Automatic upgrades": "Automaatsed uuendused",
     "Be careful!": "Ettevaatust!",
+    "Cancel": "Loobu",
+    "Changelog": "Muudatuste nimekiri",
     "Close": "Sulge",
     "Configured": "Seadistatud",
     "Connection Error": "Ühenduse viga",

gui/default/assets/lang/lang-eu.json

@@ -130,7 +130,7 @@
     "External File Versioning": "Fitxategi bertsioen kanpoko kudeaketa",
     "Failed Items": "Huts egin duten fitxategiak",
     "Failed to load ignore patterns.": "Huts egin du baztertze ereduak kargatzean.",
-    "Failed to setup, retrying": "Konfigurazioan huts egitea, berriro saiatuz",
+    "Failed to set up, retrying": "Konfigurazioan huts egitea, berriro saiatuz",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "IPv6 zerbitzariei buruzko konexioak huts eginen du, IPv6 konektibitaterik ez bada",
     "File Pull Order": "Fitxategiak berreskuratzeko ordena",
     "File Versioning": "Fitxategiak zaintzeko metodoa",

gui/default/assets/lang/lang-fi.json

@@ -122,7 +122,7 @@
     "External": "Ulkoinen",
     "External File Versioning": "Ulkoinen tiedostoversionti",
     "Failed Items": "Epäonnistuneet kohteet",
-    "Failed to setup, retrying": "Käyttöönotto epäonnistui, Yritetään uudelleen",
+    "Failed to set up, retrying": "Käyttöönotto epäonnistui, Yritetään uudelleen",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Yhteys IPv6-palvelimiin todennäköisesti epäonnistuu, koska IPv6-yhteyksiä ei ole.",
     "File Pull Order": "Tiedostojen noutojärjestys",
     "File Versioning": "Tiedostoversiointi",

gui/default/assets/lang/lang-fil.json

@@ -154,7 +154,7 @@
     "Failed Items": "Mga Nabigong Item",
     "Failed to load file versions.": "Nabigong i-load ang mga bersyon ng file.",
     "Failed to load ignore patterns.": "Nabigong i-load ang mga ignore pattern.",
-    "Failed to setup, retrying": "Nabigong i-set up, sinusubukan muli",
+    "Failed to set up, retrying": "Nabigong i-set up, sinusubukan muli",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Inaasahan ang pagbigo sa pagkonekta sa mga IPv6 na server kapag walang konektibidad sa IPv6.",
     "File Pull Order": "Order ng Pagkuha ng File",
     "File Versioning": "File Versioning",

gui/default/assets/lang/lang-fr.json

@@ -156,7 +156,7 @@
     "Failed Items": "Éléments en échec",
     "Failed to load file versions.": "Échec de chargement des versions de fichiers.",
     "Failed to load ignore patterns.": "Échec du chargement des masques d'exclusions.",
-    "Failed to setup, retrying": "Échec, nouvel essai",
+    "Failed to set up, retrying": "Échec, nouvel essai",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "La connexion aux serveurs en IPv6 va échouer s'il n'y a pas de connectivité IPv6.",
     "File Pull Order": "Ordre de récupération des fichiers",
     "File Versioning": "Préservation des fichiers",

gui/default/assets/lang/lang-fy.json

@@ -146,7 +146,7 @@
     "Error": "Flater",
     "External File Versioning": "Ekstern ferzjebehear foar triemen",
     "Failed Items": "Mislearre items",
-    "Failed to setup, retrying": "Ynskeakeljen mislearre, wurd no opnij besocht",
+    "Failed to set up, retrying": "Ynskeakeljen mislearre, wurd no opnij besocht",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Mislearjen fan it ferbinen mei IPv6-tsjinners wurd ferwachte as der gjin stipe foar IPv6-ferbinings is.",
     "File Pull Order": "Triemlûkfolchoarder",
     "File Versioning": "Triemferzjebehear",

gui/default/assets/lang/lang-ga.json

@@ -27,6 +27,7 @@
     "Allowed Networks": "Líonraí Ceadaithe",
     "Alphabetic": "Aibítreach",
     "Altered by ignoring deletes.": "Athraithe trí neamhaird a dhéanamh ar scriosadh.",
+    "Always turned on when the folder type is \"{%foldertype%}\".": "Cuirtear ar siúl i gcónaí é nuair is é \"{{foldertype}}\" an cineál fillteáin.",
     "An external command handles the versioning. It has to remove the file from the shared folder. If the path to the application contains spaces, it should be quoted.": "Láimhseálann ordú seachtrach an leagan. Caithfidh sé an comhad a bhaint den fhillteán comhroinnte. Má tá spásanna sa chosán chuig an bhfeidhmchlár, ba chóir é a lua.",
     "Anonymous Usage Reporting": "Tuairisciú Úsáide Gan Ainm",
     "Anonymous usage report format has changed. Would you like to move to the new format?": "Tá athrú tagtha ar fhormáid na tuarascála úsáide gan ainm. Ar mhaith leat bogadh go dtí an fhormáid nua?",
@@ -52,6 +53,7 @@
     "Body:": "Comhlacht:",
     "Bugs": "Fabhtanna",
     "Cancel": "Cuir ar ceal",
+    "Cannot be enabled when the folder type is \"{%foldertype%}\".": "Ní féidir é a chumasú nuair is é \"{{foldertype}}\" an cineál fillteáin.",
     "Changelog": "ChangelogName",
     "Clean out after": "Glan amach tar éis",
     "Cleaning Versions": "Leaganacha Glantacháin",
@@ -154,7 +156,7 @@
     "Failed Items": "Míreanna Teipthe",
     "Failed to load file versions.": "Theip ar luchtú leaganacha comhaid.",
     "Failed to load ignore patterns.": "Theip ar phatrúin neamhairde a luchtú.",
-    "Failed to setup, retrying": "Theip ar thus, ag triail arís",
+    "Failed to set up, retrying": "Theip ar thus, ag triail arís",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Táthar ag súil le mainneachtain ceangal le freastalaithe IPv6 mura bhfuil nascacht IPv6 ann.",
     "File Pull Order": "Ordú Tarraingthe Comhad",
     "File Versioning": "Leagan Comhaid",

gui/default/assets/lang/lang-gl.json

@@ -153,7 +153,7 @@
     "Failed Items": "Elmentos fallados",
     "Failed to load file versions.": "Fallou a carga das versións dos ficheiros.",
     "Failed to load ignore patterns.": "Fallou a carga de patróns ignorados.",
-    "Failed to setup, retrying": "Fallou a configuración, reintentando",
+    "Failed to set up, retrying": "Fallou a configuración, reintentando",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "É de agardar o fallo ao conectar con servidores IPv6 se non hai conexión por IPv6.",
     "File Pull Order": "Orde de Obtención de Arquivos",
     "File Versioning": "Versionado de Ficheiros",

gui/default/assets/lang/lang-he-IL.json

@@ -154,7 +154,7 @@
     "Failed Items": "פריטים שנכשלו",
     "Failed to load file versions.": "טעינת גרסאות קבצים נכשלה.",
     "Failed to load ignore patterns.": "טעינת דפוסי התעלמות נכשלה.",
-    "Failed to setup, retrying": "ההגדרה נכשלה, מנסה שוב",
+    "Failed to set up, retrying": "ההגדרה נכשלה, מנסה שוב",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "צפוי כשל בהתחברות לשרתי IPv6 אם אין קישוריות IPv6.",
     "File Pull Order": "סדר משיכת קבצים",
     "File Versioning": "ניהול גרסאות קבצים",

gui/default/assets/lang/lang-hi.json

@@ -154,7 +154,7 @@
     "Failed Items": "विफल वस्तुएं",
     "Failed to load file versions.": "फाइल संस्करण लोड करने में विफल।",
     "Failed to load ignore patterns.": "नजरअंदाज प्रतिमान लोड करने में विफल।",
-    "Failed to setup, retrying": "स्थापना करने में विफल, पुनः प्रयास किया जा रहा है",
+    "Failed to set up, retrying": "स्थापना करने में विफल, पुनः प्रयास किया जा रहा है",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "यदि IPv6 संयोजकता नहीं है तो IPv6 सर्वर से जुड़ने में विफलता अपेक्षित है।",
     "File Pull Order": "फाइल खींचने का क्रम",
     "File Versioning": "फाइल संस्करणीकरण",

gui/default/assets/lang/lang-hu.json

@@ -146,7 +146,7 @@
     "Failed Items": "Hibás elemek",
     "Failed to load file versions.": "Nem sikerült betölteni a fájlverziókat.",
     "Failed to load ignore patterns.": "Nem sikerült betölteni a mellőzési mintákat.",
-    "Failed to setup, retrying": "Telepítés nem sikerült, újrapróbálkozás",
+    "Failed to set up, retrying": "Telepítés nem sikerült, újrapróbálkozás",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Mivel nincs IPv6 kapcsolat, ezért várhatóan nem fog sikerülni IPv6-os szerverekhez csatlakozni.",
     "File Pull Order": "Fájlküldési sorrend",
     "File Versioning": "Fájlverzió-követés",

gui/default/assets/lang/lang-id.json

@@ -146,7 +146,7 @@
     "Failed Items": "Berkas yang gagal",
     "Failed to load file versions.": "Gagal memuat versi berkas.",
     "Failed to load ignore patterns.": "Gagal memuat pola pengabaian.",
-    "Failed to setup, retrying": "Gagal menyiapkan, mengulang",
+    "Failed to set up, retrying": "Gagal menyiapkan, mengulang",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Gagal untuk menyambung ke server IPv6 itu disangka apabila tidak ada konektivitas IPv6.",
     "File Pull Order": "Urutan Penarikan Berkas",
     "File Versioning": "Pemversian Berkas",

gui/default/assets/lang/lang-it.json

@@ -156,7 +156,7 @@
     "Failed Items": "Elementi Errati",
     "Failed to load file versions.": "Impossibile caricare le versioni dei file.",
     "Failed to load ignore patterns.": "Impossibile caricare gli schemi di esclusione.",
-    "Failed to setup, retrying": "Configurazione fallita, riprovo",
+    "Failed to set up, retrying": "Configurazione fallita, riprovo",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "La connessione a server IPv6 fallisce se non c'è connettività IPv6.",
     "File Pull Order": "Ordine Prelievo File",
     "File Versioning": "Controllo Versione File",

gui/default/assets/lang/lang-ko-KR.json

@@ -27,6 +27,7 @@
     "Allowed Networks": "허가된 망",
     "Alphabetic": "가나다순",
     "Altered by ignoring deletes.": "삭제 항목 무시로 변경됨",
+    "Always turned on when the folder type is \"{%foldertype%}\".": "{{foldertype}} 폴더 유형일 때는 항상 활성화되어 있습니다.",
     "An external command handles the versioning. It has to remove the file from the shared folder. If the path to the application contains spaces, it should be quoted.": "외부 명령이 파일 버전을 관리합니다. 공유 폴더에서 파일을 삭제해야 합니다. 응용 프로그램의 경로에 공백이 있으면 따옴표로 묶어야 합니다.",
     "Anonymous Usage Reporting": "익명 사용 보고",
     "Anonymous usage report format has changed. Would you like to move to the new format?": "익명 사용 보고의 형식이 변경되었습니다. 새 형식으로 설정을 변경하시겠습니까?",
@@ -52,6 +53,7 @@
     "Body:": "내용:",
     "Bugs": "버그",
     "Cancel": "취소",
+    "Cannot be enabled when the folder type is \"{%foldertype%}\".": "{{foldertype}} 폴더 유형일 때는 활성화할 수 없습니다.",
     "Changelog": "변경 기록",
     "Clean out after": "보관 기간",
     "Cleaning Versions": "버전 정리",
@@ -154,7 +156,7 @@
     "Failed Items": "실패 항목",
     "Failed to load file versions.": "파일 버전을 불러오기에 실패했습니다.",
     "Failed to load ignore patterns.": "무시 양식을 불러오기에 실패했습니다.",
-    "Failed to setup, retrying": "설정 적용 실패; 재시도 중",
+    "Failed to set up, retrying": "설정 적용 실패; 재시도 중",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "IPv6에 연결되어 있지 않을 때는 IPv6 서버에 접속하지 못하는 것이 정상입니다.",
     "File Pull Order": "파일 수신 순서",
     "File Versioning": "파일 버전 관리",

gui/default/assets/lang/lang-lt.json

@@ -144,7 +144,7 @@
     "Failed Items": "Nepavykę siuntimai",
     "Failed to load file versions.": "Nepavyko įkelti failo versijų.",
     "Failed to load ignore patterns.": "Nepavyko įkelti nepaisymo šablonų.",
-    "Failed to setup, retrying": "Nepavyko nustatyti, bandoma iš naujo",
+    "Failed to set up, retrying": "Nepavyko nustatyti, bandoma iš naujo",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Nesėkmė prisijungti prie IPv6 serverių yra tikėtina, jei nėra IPv6 ryšio.",
     "File Pull Order": "Failų siuntimo tvarka",
     "File Versioning": "Versijų valdymas",

gui/default/assets/lang/lang-nb.json

@@ -154,7 +154,7 @@
     "Failed Items": "Elementsynkronisering som har mislyktes",
     "Failed to load file versions.": "Lasting av fil-versjoner feilet.",
     "Failed to load ignore patterns.": "Lasting av ignorer mønstre feilet.",
-    "Failed to setup, retrying": "Klarte ikke å utføre oppsett, prøver igjen",
+    "Failed to set up, retrying": "Klarte ikke å utføre oppsett, prøver igjen",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Å ikke klare å koble til IPv6-tjenere er forventet hvis det ikke er noen IPv6-tilknytning.",
     "File Pull Order": "Filenes henterekkefølge",
     "File Versioning": "Versjonskontroll",

gui/default/assets/lang/lang-nl.json

@@ -154,7 +154,7 @@
     "Failed Items": "Mislukte items",
     "Failed to load file versions.": "Laden van bestandsversies mislukt.",
     "Failed to load ignore patterns.": "Laden van negeerpatronen mislukt.",
-    "Failed to setup, retrying": "Instellen mislukt, opnieuw proberen",
+    "Failed to set up, retrying": "Instellen mislukt, opnieuw proberen",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Als er geen IPv6-connectiviteit is worden problemen bij verbinden met IPv6-servers verwacht.",
     "File Pull Order": "Volgorde voor binnenhalen van bestanden",
     "File Versioning": "Versiebeheer",

gui/default/assets/lang/lang-pl.json

@@ -156,7 +156,7 @@
     "Failed Items": "Elementy zakończone niepowodzeniem",
     "Failed to load file versions.": "Nie udało się załadować wersji plików.",
     "Failed to load ignore patterns.": "Nie udało się załadować wzorców ignorowania.",
-    "Failed to setup, retrying": "Nie udało się ustawić; ponawiam próbę",
+    "Failed to set up, retrying": "Nie udało się ustawić; ponawiam próbę",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Błąd połączenia do serwerów IPv6 może wystąpić, gdy w ogóle nie ma połączenia po IPv6.",
     "File Pull Order": "Kolejność pobierania plików",
     "File Versioning": "Wersjonowanie plików",

gui/default/assets/lang/lang-pt-BR.json

@@ -156,7 +156,7 @@
     "Failed Items": "Itens com falha",
     "Failed to load file versions.": "Falha ao carregar versões do arquivo.",
     "Failed to load ignore patterns.": "Falha ao carregar os padrões para ignorar.",
-    "Failed to setup, retrying": "Não foi possível configurar, tentando novamente",
+    "Failed to set up, retrying": "Não foi possível configurar, tentando novamente",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Falhas na conexão a servidores IPv6 são esperadas caso não haja conectividade IPv6.",
     "File Pull Order": "Ordem de retirada do arquivo",
     "File Versioning": "Versionamento de arquivos",

gui/default/assets/lang/lang-pt-PT.json

@@ -156,7 +156,7 @@
     "Failed Items": "Itens que falharam",
     "Failed to load file versions.": "Falha ao carregar as versões do ficheiro.",
     "Failed to load ignore patterns.": "Falha ao carregar os padrões de exclusão.",
-    "Failed to setup, retrying": "A preparação falhou, a tentar novamente",
+    "Failed to set up, retrying": "A preparação falhou, a tentar novamente",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "São esperadas falhas na ligação a servidores IPv6 se não existir conectividade IPv6.",
     "File Pull Order": "Ordem de obtenção de ficheiros",
     "File Versioning": "Gestão de versões de ficheiros",

gui/default/assets/lang/lang-ro-RO.json

@@ -143,7 +143,6 @@
     "Error": "Eroare",
     "External File Versioning": "Administrare externă a versiunilor documentului",
     "Failed Items": "Failed Items",
-    "Failed to setup, retrying": "Failed to setup, retrying",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.",
     "File Pull Order": "File Pull Order",
     "File Versioning": "Versiune Fișier",

gui/default/assets/lang/lang-ru.json

@@ -154,7 +154,7 @@
     "Failed Items": "Сбойные объекты",
     "Failed to load file versions.": "Не удалось загрузить версии файлов.",
     "Failed to load ignore patterns.": "Не удалось загрузить шаблоны игнорирования.",
-    "Failed to setup, retrying": "Не удалось настроить, пробуем ещё",
+    "Failed to set up, retrying": "Не удалось настроить, пробуем ещё",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Если нет IPv6-соединений, при подключении к IPv6-серверам произойдёт ошибка.",
     "File Pull Order": "Порядок получения файлов",
     "File Versioning": "Управление версиями",

gui/default/assets/lang/lang-si.json

@@ -143,7 +143,7 @@
     "Failed Items": "අසාර්ථක අයිතම",
     "Failed to load file versions.": "ගොනු අනුවාද පූරණය කිරීමට අසමත් විය.",
     "Failed to load ignore patterns.": "නොසලකා හැරීමේ රටා පූරණය කිරීමට අසමත් විය.",
-    "Failed to setup, retrying": "පිහිටුවීමට අසමත් විය, උත්සාහ කරමින්",
+    "Failed to set up, retrying": "පිහිටුවීමට අසමත් විය, උත්සාහ කරමින්",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "IPv6 සම්බන්ධතාවක් නොමැති නම් IPv6 සේවාදායක වෙත සම්බන්ධ වීමට අසමත් වීම අපේක්ෂා කෙරේ.",
     "File Pull Order": "ගොනු ඇදීමේ නියෝගය",
     "File Versioning": "ගොනු අනුවාදය",

gui/default/assets/lang/lang-sk.json

@@ -153,7 +153,7 @@
     "Failed Items": "Zlyhané položky",
     "Failed to load file versions.": "Nepodarilo sa načítať verzie súborov.",
     "Failed to load ignore patterns.": "Nepodarilo sa načítať ignorované vzory.",
-    "Failed to setup, retrying": "Nepodarilo sa nastaviť, opakujem",
+    "Failed to set up, retrying": "Nepodarilo sa nastaviť, opakujem",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Zlyhanie pripojenia k IPv6 serverom je očakávané ak neexistujú žiadne IPv6 pripojenia.",
     "File Pull Order": "Poradie sťahovania súborov",
     "File Versioning": "Verzie súborov",

gui/default/assets/lang/lang-sl.json

@@ -131,7 +131,7 @@
     "External File Versioning": "Zunanje beleženje različic datotek",
     "Failed Items": "Neuspeli predmeti",
     "Failed to load ignore patterns.": "Prezrih vzorcev ni bilo mogoče naložiti.",
-    "Failed to setup, retrying": "Nastavitev ni uspela, ponovni poskus",
+    "Failed to set up, retrying": "Nastavitev ni uspela, ponovni poskus",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Neuspeh povezav z IPv6 strežniki je pričakovan, če ni IPv6 povezljivost.",
     "File Pull Order": "Vrstni red prenosa datotek",
     "File Versioning": "Beleženje različic datotek",

gui/default/assets/lang/lang-sv.json

@@ -27,6 +27,7 @@
     "Allowed Networks": "Tillåtna nätverk",
     "Alphabetic": "Alfabetisk",
     "Altered by ignoring deletes.": "Ändrad genom att ignorera borttagningar.",
+    "Always turned on when the folder type is \"{%foldertype%}\".": "Alltid på när mapptypen är \"{{foldertype}}\".",
     "An external command handles the versioning. It has to remove the file from the shared folder. If the path to the application contains spaces, it should be quoted.": "Ett externt kommando hanterar versionen. Det måste ta bort filen från den delade mappen. Om sökvägen till applikationen innehåller mellanslag bör den citeras.",
     "Anonymous Usage Reporting": "Anonym användarstatistiksrapportering",
     "Anonymous usage report format has changed. Would you like to move to the new format?": "Anonymt användningsrapportformat har ändrats. Vill du flytta till det nya formatet?",
@@ -52,6 +53,7 @@
     "Body:": "Meddelande:",
     "Bugs": "Felrapporter",
     "Cancel": "Avbryt",
+    "Cannot be enabled when the folder type is \"{%foldertype%}\".": "Kan inte aktiveras när mapptypen är \"{{foldertype}}\".",
     "Changelog": "Ändringslogg",
     "Clean out after": "Rensa efteråt",
     "Cleaning Versions": "Rensningsversioner",
@@ -154,7 +156,7 @@
     "Failed Items": "Misslyckade objekt",
     "Failed to load file versions.": "Det gick inte att läsa in filversioner.",
     "Failed to load ignore patterns.": "Det gick inte att läsa in ignoreringsmönster.",
-    "Failed to setup, retrying": "Det gick inte att ställa in, försöker igen",
+    "Failed to set up, retrying": "Det gick inte att ställa in, försöker igen",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Det går inte att ansluta till IPv6-servrar om det inte finns någon IPv6-anslutning.",
     "File Pull Order": "Filhämtningsprioritering",
     "File Versioning": "Filversionshantering",

gui/default/assets/lang/lang-tr.json

@@ -156,7 +156,7 @@
     "Failed Items": "Başarısız Olan Öğeler",
     "Failed to load file versions.": "Dosya sürümlerini yükleme başarısız.",
     "Failed to load ignore patterns.": "Yoksayma şekillerini yükleme başarısız.",
-    "Failed to setup, retrying": "Ayarlama başarısız, yeniden deneniyor",
+    "Failed to set up, retrying": "Ayarlama başarısız, yeniden deneniyor",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "IPv6 bağlanabilirliği yoksa IPv6 sunucularına bağlanma hatası beklenmekte.",
     "File Pull Order": "Dosya Çekme Sırası",
     "File Versioning": "Dosya Sürümlendirme",

gui/default/assets/lang/lang-uk.json

@@ -27,6 +27,7 @@
     "Allowed Networks": "Дозволені мережі",
     "Alphabetic": "За абеткою",
     "Altered by ignoring deletes.": "Змінено, ігноруючи видалення.",
+    "Always turned on when the folder type is \"{%foldertype%}\".": "Завжди вмикається, якщо тип теки «{{foldertype}}».",
     "An external command handles the versioning. It has to remove the file from the shared folder. If the path to the application contains spaces, it should be quoted.": "Зовнішня команда керує версіями. Вона повинна видалити файл із спільної теки. Якщо шлях до застосунку містить пробіли, його слід взяти в лапки.",
     "Anonymous Usage Reporting": "Анонімне звітування про використання",
     "Anonymous usage report format has changed. Would you like to move to the new format?": "Формат анонімного звітування про використання змінився. Бажаєте перейти на новий формат?",
@@ -52,6 +53,7 @@
     "Body:": "Повідомлення:",
     "Bugs": "Помилки",
     "Cancel": "Скасувати",
+    "Cannot be enabled when the folder type is \"{%foldertype%}\".": "Неможливо ввімкнути, якщо тип теки «{{foldertype}}».",
     "Changelog": "Журнал змін",
     "Clean out after": "Очистити після",
     "Cleaning Versions": "Очищення версій",
@@ -154,7 +156,7 @@
     "Failed Items": "Невдалі",
     "Failed to load file versions.": "Не вдалося завантажити версії файлів.",
     "Failed to load ignore patterns.": "Не вдалося завантажити шаблони ігнорування.",
-    "Failed to setup, retrying": "Не вдалося налаштувати, повторна спроба",
+    "Failed to set up, retrying": "Не вдалося налаштувати, повторна спроба",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "За відсутності з'єднання IPv6 очікується неможливість під'єднання до серверів IPv6.",
     "File Pull Order": "Порядок витягнення файлів",
     "File Versioning": "Версіонування файлів",
@@ -550,6 +552,6 @@
     },
     "unknown device": "невідомий пристрій",
     "{%device%} wants to share folder \"{%folder%}\".": "{{device}} хоче поділитися папкою \"{{folder}}\".",
-    "{%device%} wants to share folder \"{%folderlabel%}\" ({%folder%}).": "{{device}} хоче поділитися папкою \"{{folderLabel}}\" ({{folder}}).",
+    "{%device%} wants to share folder \"{%folderlabel%}\" ({%folder%}).": "{{device}} хоче поділитися текою \"{{folderlabel}}\" ({{folder}}).",
     "{%reintroducer%} might reintroduce this device.": "{{reintroducer}} може повторно порекомендувати цей пристрій."
 }

gui/default/assets/lang/lang-zh-CN.json

@@ -156,7 +156,7 @@
     "Failed Items": "失败的项目",
     "Failed to load file versions.": "加载文件版本失败。",
     "Failed to load ignore patterns.": "加载忽略模式失败。",
-    "Failed to setup, retrying": "设置失败，正在重试",
+    "Failed to set up, retrying": "设置失败，正在重试",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "如果本机没有配置 IPv6，则无法连接 IPv6 服务器是正常的。",
     "File Pull Order": "文件拉取顺序",
     "File Versioning": "文件版本控制",

gui/default/assets/lang/lang-zh-HK.json

@@ -145,7 +145,7 @@
     "Failed Items": "失敗的項目",
     "Failed to load file versions.": "無法加載文件版本。",
     "Failed to load ignore patterns.": "無法加載忽略模式。",
-    "Failed to setup, retrying": "設置失敗，正在重試。",
+    "Failed to set up, retrying": "設置失敗，正在重試。",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "如果本機沒有配置IPv6，則無法連接IPv6服務器是正常的。",
     "File Pull Order": "文件拉取順序",
     "File Versioning": "版本控制",

gui/default/assets/lang/lang-zh-TW.json

@@ -154,7 +154,7 @@
     "Failed Items": "失敗的項目",
     "Failed to load file versions.": "無法載入檔案版本。",
     "Failed to load ignore patterns.": "無法載入忽略模式。",
-    "Failed to setup, retrying": "無法設定，正在重試",
+    "Failed to set up, retrying": "無法設定，正在重試",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "若沒有 IPv6 連線能力，則無法連接 IPv6 伺服器為正常現象。",
     "File Pull Order": "提取檔案的順序",
     "File Versioning": "檔案版本控制",

gui/default/index.html

@@ -521,7 +521,7 @@
                             </span>
                             <span ng-if="folder.fsWatcherEnabled && !folder.paused && folderStatus(folder) !== 'stopped' && model[folder.id].watchError" tooltip data-original-title="{{'Periodic scanning at given interval and failed setting up watching for changes, retrying every 1m:' | translate}}<br/>{{model[folder.id].watchError}}">
                               <span class="far fa-clock"></span>&nbsp;{{folder.rescanIntervalS | duration}}&ensp;
-                              <span class="fas fa-eye-slash"></span>&nbsp;<span translate>Failed to setup, retrying</span>
+                              <span class="fas fa-eye-slash"></span>&nbsp;<span translate>Failed to set up, retrying</span>
                             </span>
                           </div>
                           <div ng-if="folder.rescanIntervalS <= 0">
@@ -535,7 +535,7 @@
                             </span>
                             <span ng-if="folder.fsWatcherEnabled && !folder.paused && folderStatus(folder) !== 'stopped' && model[folder.id].watchError" tooltip data-original-title="{{'Disabled periodic scanning and failed setting up watching for changes, retrying every 1m:' | translate}}<br/>{{model[folder.id].watchError}}">
                               <span class="far fa-clock"></span>&nbsp;<span translate>Disabled</span>&ensp;
-                              <span class="fas fa-eye-slash"></span>&nbsp;<span translate>Failed to setup, retrying</span>
+                              <span class="fas fa-eye-slash"></span>&nbsp;<span translate>Failed to set up, retrying</span>
                             </span>
                           </div>
                         </td>

gui/default/syncthing/core/aboutModalView.html

@@ -30,7 +30,7 @@
         <h4 class="text-center" translate>The Syncthing Authors</h4>
         <div class="row">
           <div class="col-md-12" id="contributor-list">
-Jakob Borg, Audrius Butkevicius, Jesse Lucas, Simon Frei, Tomasz Wilczyński, Alexander Graf, Alexandre Viau, Anderson Mesquita, André Colomb, Antony Male, Ben Schulz, Caleb Callaway, Daniel Harte, Emil Lundberg, Eric P, Evgeny Kuznetsov, Lars K.W. Gohlke, Lode Hoste, Michael Ploujnikov, Nate Morrison, Philippe Schommers, Ross Smith II, Ryan Sullivan, Sergey Mishin, Stefan Tatschner, Wulf Weich, bt90, greatroar, Aaron Bieber, Adam Piggott, Adel Qalieh, Alan Pope, Alberto Donato, Aleksey Vasenev, Alessandro G., Alex Ionescu, Alex Lindeman, Alex Xu, Alexander Seiler, Alexandre Alves, Aman Gupta, Anatoli Babenia, Andreas Sommer, Andrew Dunham, Andrew Meyer, Andrew Rabert, Andrey D, Anjan Momi, Anthony Goeckner, Antoine Lamielle, Anur, Aranjedeath, Arkadiusz Tymiński, Aroun, Arthur Axel fREW Schmidt, Artur Zubilewicz, Aurélien Rainone, BAHADIR YILMAZ, Bart De Vries, Beat Reichenbach, Ben Curthoys, Ben Shepherd, Ben Sidhom, Benedikt Heine, Benedikt Morbach, Benjamin Nater, Benno Fünfstück, Benny Ng, Boqin Qin, Boris Rybalkin, Brandon Philips, Brendan Long, Brian R. Becker, Carsten Hagemann, Catfriend1, Cathryne Linenweaver, Cedric Staniewski, Chih-Hsuan Yen, Choongkyu, Chris Howie, Chris Joel, Chris Tonkinson, Christian Kujau, Christian Prescott, Colin Kennedy, Cromefire_, Cyprien Devillez, Dale Visser, Dan, Daniel Barczyk, Daniel Bergmann, Daniel Martí, Daniel Padrta, Darshil Chanpura, David Rimmer, DeflateAwning, Denis A., Dennis Wilson, DerRockWolf, Devon G. Redekopp, Dimitri Papadopoulos Orfanos, Dmitry Saveliev, Domenic Horner, Dominik Heidler, Elias Jarlebring, Elliot Huffman, Emil Hessman, Eng Zer Jun, Eric Lesiuta, Erik Meitner, Evan Spensley, Federico Castagnini, Felix, Felix Ableitner, Felix Lampe, Felix Unterpaintner, Francois-Xavier Gsell, Frank Isemann, Gahl Saraf, Gilli Sigurdsson, Gleb Sinyavskiy, Graham Miln, Greg, Gusted, Han Boetes, HansK-p, Harrison Jones, Heiko Zuerker, Hireworks, Hugo Locurcio, Iain Barnett, Ian Johnson, Ikko Ashimine, Ilya Brin, Iskander Sharipov, Jaakko Hannikainen, Jacek Szafarkiewicz, Jack Croft, Jacob, Jake Peterson, James O'Beirne, James Patterson, Jaroslav Lichtblau, Jaroslav Malec, Jaspitta, Jauder Ho, Jaya Chithra, Jaya Kumar, Jeffery To, Jens Diemer, Jerry Jacobs, Jochen Voss, Johan Andersson, Johan Vromans, John Rinehart, Jonas Thelemann, Jonathan, Jonathan Cross, Jonta, Jose Manuel Delicado, Julian Lehrhuber, Jörg Thalheim, Jędrzej Kula, K.B.Dharun Krishna, Kalle Laine, Kapil Sareen, Karol Różycki, Kebin Liu, Keith Harrison, Keith Turner, Kelong Cong, Ken'ichi Kamada, Kevin Allen, Kevin Bushiri, Kevin White, Jr., Kurt Fitzner, LSmithx2, Lars Lehtonen, Laurent Arnoud, Laurent Etiemble, Leo Arias, Liu Siyuan, Lord Landon Agahnim, Lukas Lihotzki, Luke Hamburg, Majed Abdulaziz, Marc Laporte, Marc Pujol, Marcin Dziadus, Marcus B Spencer, Marcus Legendre, Mario Majila, Mark Pulford, Martchus, Martin Polehla, Mateusz Naściszewski, Mateusz Ż, Matic Potočnik, Matt Burke, Matt Robenolt, Matteo Ruina, Maurizio Tomasi, Max, Max Schulze, MaximAL, Maxime Thirouin, Maximilian, MichaIng, Michael Jephcote, Michael Rienstra, Michael Tilli, Migelo, Mike Boone, MikeLund, MikolajTwarog, Mingxuan Lin, Naveen, Nicholas Rishel, Nick Busey, Nico Stapelbroek, Nicolas Braud-Santoni, Nicolas Perraut, Niels Peter Roest, Nils Jakobi, NinoM4ster, Nitroretro, NoLooseEnds, Oliver Freyermuth, Otiel, Oyebanji Jacob Mayowa, Pablo, Pascal Jungblut, Paul Brit, Pawel Palenica, Paweł Rozlach, Peter Badida, Peter Dave Hello, Peter Hoeg, Peter Marquardt, Phani Rithvij, Phil Davis, Phill Luby, Pier Paolo Ramon, Piotr Bejda, Pramodh KP, Quentin Hibon, Rahmi Pruitt, Richard Hartmann, Robert Carosi, Roberto Santalla, Robin Schoonover, Roman Zaynetdinov, Ruslan Yevdokymov, Ryan Qian, Sacheendra Talluri, Scott Klupfel, Sertonix, Severin von Wnuck-Lipinski, Shaarad Dalvi, Simon Mwepu, Simon Pickup, Sly_tom_cat, Sonu Kumar Saw, Stefan Kuntz, Steven Eckhoff, Suhas Gundimeda, Sven Bachmann, Taylor Khan, Terrance, Thomas, Thomas Hipp, Tim Abell, Tim Howes, Tim Nordenfur, Tobias Frölich, Tobias Klauser, Tobias Nygren, Tobias Tom, Tom Jakubowski, Tommy Thorn, Tommy van der Vorst, Tully Robinson, Tyler Brazier, Tyler Kropp, Unrud, Veeti Paananen, Victor Buinsky, Vik, Vil Brekin, Vladimir Rusinov, WangXi, Will Rouesnel, William A. Kennington III, Xavier O., Yannic A., andresvia, andyleap, boomsquared, chenrui, chucic, cjc7373, cui fliter, d-volution, dashangcun, derekriemer, desbma, diemade, digital, entity0xfe, georgespatton, ghjklw, guangwu, gudvinr, ignacy123, janost, jaseg, jelle van der Waa, jtagcat, klemens, kylosus, luchenhan, luzpaz, marco-m, mathias4833, maxice8, mclang, mv1005, nf, orangekame3, otbutz, overkill, perewa, polyfloyd, red_led, rubenbe, sec65, vapatel2, villekalliomaki, wangguoliang, wouter bolsterlee, xarx00, xjtdy888, 佛跳墙, 落心
+Jakob Borg, Audrius Butkevicius, Jesse Lucas, Simon Frei, Tomasz Wilczyński, Alexander Graf, Alexandre Viau, Anderson Mesquita, André Colomb, Antony Male, Ben Schulz, Caleb Callaway, Daniel Harte, Emil Lundberg, Eric P, Evgeny Kuznetsov, Lars K.W. Gohlke, Lode Hoste, Michael Ploujnikov, Nate Morrison, Philippe Schommers, Ross Smith II, Ryan Sullivan, Sergey Mishin, Stefan Tatschner, Wulf Weich, bt90, greatroar, Aaron Bieber, Adam Piggott, Adel Qalieh, Alan Pope, Alberto Donato, Aleksey Vasenev, Alessandro G., Alex Ionescu, Alex Lindeman, Alex Xu, Alexander Seiler, Alexandre Alves, Aman Gupta, Anatoli Babenia, Andreas Sommer, Andrew Dunham, Andrew Meyer, Andrew Rabert, Andrey D, Anjan Momi, Anthony Goeckner, Antoine Lamielle, Anur, Aranjedeath, Arkadiusz Tymiński, Aroun, Arthur Axel fREW Schmidt, Artur Zubilewicz, Aurélien Rainone, BAHADIR YILMAZ, Bart De Vries, Beat Reichenbach, Ben Curthoys, Ben Shepherd, Ben Sidhom, Benedikt Heine, Benedikt Morbach, Benjamin Nater, Benno Fünfstück, Benny Ng, Boqin Qin, Boris Rybalkin, Brandon Philips, Brendan Long, Brian R. Becker, Carsten Hagemann, Catfriend1, Cathryne Linenweaver, Cedric Staniewski, Chih-Hsuan Yen, Choongkyu, Chris Howie, Chris Joel, Chris Tonkinson, Christian Kujau, Christian Prescott, Colin Kennedy, Cromefire_, Cyprien Devillez, Dale Visser, Dan, Daniel Barczyk, Daniel Bergmann, Daniel Martí, Daniel Padrta, Darshil Chanpura, David Rimmer, DeflateAwning, Denis A., Dennis Wilson, DerRockWolf, Devon G. Redekopp, Dimitri Papadopoulos Orfanos, Dmitry Saveliev, Domenic Horner, Dominik Heidler, Elias Jarlebring, Elliot Huffman, Emil Hessman, Eng Zer Jun, Eric Lesiuta, Erik Meitner, Evan Spensley, Federico Castagnini, Felix, Felix Ableitner, Felix Lampe, Felix Unterpaintner, Francois-Xavier Gsell, Frank Isemann, Gahl Saraf, Gilli Sigurdsson, Gleb Sinyavskiy, Graham Miln, Greg, Gusted, Han Boetes, HansK-p, Harrison Jones, Heiko Zuerker, Hireworks, Hugo Locurcio, Iain Barnett, Ian Johnson, Ikko Ashimine, Ilya Brin, Iskander Sharipov, Jaakko Hannikainen, Jacek Szafarkiewicz, Jack Croft, Jacob, Jake Peterson, James O'Beirne, James Patterson, Jaroslav Lichtblau, Jaroslav Malec, Jaspitta, Jauder Ho, Jaya Chithra, Jaya Kumar, Jeffery To, Jens Diemer, Jerry Jacobs, Jochen Voss, Johan Andersson, Johan Vromans, John Rinehart, Jonas Thelemann, Jonathan, Jonathan Cross, Jonta, Jose Manuel Delicado, Julian Lehrhuber, Jörg Thalheim, Jędrzej Kula, K.B.Dharun Krishna, Kalle Laine, Kapil Sareen, Karol Różycki, Kebin Liu, Keith Harrison, Keith Turner, Kelong Cong, Ken'ichi Kamada, Kevin Allen, Kevin Bushiri, Kevin White, Jr., Kurt Fitzner, LSmithx2, Lars Lehtonen, Laurent Arnoud, Laurent Etiemble, Leo Arias, Liu Siyuan, Lord Landon Agahnim, Lukas Lihotzki, Luke Hamburg, Majed Abdulaziz, Marc Laporte, Marc Pujol, Marcin Dziadus, Marcus B Spencer, Marcus Legendre, Mario Majila, Mark Pulford, Martchus, Martin Polehla, Mateusz Naściszewski, Mateusz Ż, Matic Potočnik, Matt Burke, Matt Robenolt, Matteo Ruina, Maurizio Tomasi, Max, Max Schulze, MaximAL, Maxime Thirouin, Maximilian, MichaIng, Michael Jephcote, Michael Rienstra, Michael Tilli, Migelo, Mike Boone, MikeLund, MikolajTwarog, Mingxuan Lin, Naveen, Nicholas Rishel, Nick Busey, Nico Stapelbroek, Nicolas Braud-Santoni, Nicolas Perraut, Niels Peter Roest, Nils Jakobi, NinoM4ster, Nitroretro, NoLooseEnds, Oliver Freyermuth, Otiel, Oyebanji Jacob Mayowa, Pablo, Pascal Jungblut, Paul Brit, Paul Donald, Pawel Palenica, Paweł Rozlach, Peter Badida, Peter Dave Hello, Peter Hoeg, Peter Marquardt, Phani Rithvij, Phil Davis, Phill Luby, Pier Paolo Ramon, Piotr Bejda, Pramodh KP, Quentin Hibon, Rahmi Pruitt, Richard Hartmann, Robert Carosi, Roberto Santalla, Robin Schoonover, Roman Zaynetdinov, Ruslan Yevdokymov, Ryan Qian, Sacheendra Talluri, Scott Klupfel, Sertonix, Severin von Wnuck-Lipinski, Shaarad Dalvi, Simon Mwepu, Simon Pickup, Sly_tom_cat, Sonu Kumar Saw, Stefan Kuntz, Steven Eckhoff, Suhas Gundimeda, Sven Bachmann, Sébastien WENSKE, Taylor Khan, Terrance, TheCreeper, Thomas, Thomas Hipp, Tim Abell, Tim Howes, Tim Nordenfur, Tobias Frölich, Tobias Klauser, Tobias Nygren, Tobias Tom, Tom Jakubowski, Tommy Thorn, Tommy van der Vorst, Tully Robinson, Tyler Brazier, Tyler Kropp, Unrud, Veeti Paananen, Victor Buinsky, Vik, Vil Brekin, Vladimir Rusinov, WangXi, Will Rouesnel, William A. Kennington III, Xavier O., Yannic A., andresvia, andyleap, boomsquared, chenrui, chucic, cjc7373, cui fliter, d-volution, dashangcun, derekriemer, desbma, diemade, digital, entity0xfe, georgespatton, ghjklw, guangwu, gudvinr, ignacy123, janost, jaseg, jelle van der Waa, jtagcat, klemens, kylosus, luchenhan, luzpaz, marco-m, mathias4833, maxice8, mclang, mv1005, nf, orangekame3, otbutz, overkill, perewa, polyfloyd, red_led, rubenbe, sec65, vapatel2, villekalliomaki, wangguoliang, wouter bolsterlee, xarx00, xjtdy888, 佛跳墙, 落心
           </div>
         </div>
       </div>
@@ -38,45 +38,71 @@ Jakob Borg, Audrius Butkevicius, Jesse Lucas, Simon Frei, Tomasz Wilczyński, Al
       <div id="about-includes" class="tab-pane">
         <p translate>Syncthing includes the following software or portions thereof:</p>
         <ul class="list-unstyled two-columns" id="copyright-notices">
-          <li><a href="http://getbootstrap.com/">Bootstrap</a>, Copyright &copy; 2011-2016 Twitter, Inc.</li>
+          <li><a href="https://getbootstrap.com/">Bootstrap</a>, Copyright &copy; 2011-2016 Twitter, Inc.</li>
           <li><a href="https://angularjs.org/">AngularJS</a>, Copyright &copy; 2010-2014, 2016 Google, Inc.</li>
-          <li><a href="http://www.daterangepicker.com/">Date Range Picker</a>, Copyright &copy; 2012-2018 Dan Grossman.</li>
+          <li><a href="https://www.daterangepicker.com/">Date Range Picker</a>, Copyright &copy; 2012-2018 Dan Grossman.</li>
           <li><a href="https://github.com/mar10/fancytree">JQuery Fancytree Plugin</a>, Copyright &copy; 2008-2018 Martin Wendt.</li>
+          <li><a href="https://fontawesome.com/">Font Awesome</a>Copyright &copy; 2024 Fonticons, Inc.</li>
           <li><a href="https://forkaweso.me/Fork-Awesome/">Fork Awesome</a>, Copyright &copy; 2018 Dave Gandy &amp; Fork Awesome.</li>
-          <li><a href="http://jquery.com/">jQuery JavaScript Library</a>, Copyright &copy; jQuery Foundation and other contributors.</li>
-          <li><a href="http://momentjs.com/">moment.js</a>, Copyright &copy; JS Foundation and other contributors.</li>
+          <li><a href="https://evanhahn.github.io/HumanizeDuration.js/">HumanDuration.js</a>, Copyright &copy; 2013-2024 Evan Hahn, portions copyright &copy; 2024 Ross Smith II.</li>
+          <li><a href="https://jquery.com/">jQuery JavaScript Library</a>, Copyright &copy; jQuery Foundation and other contributors.</li>
+          <li><a href="https://leafletjs.com/">leaflet.js</a>, Copyright &copy; 2010-2025 Volodymyr Agafonkin, Copyright &copy; 2010-2011 CloudMade.</li>
+          <li><a href="https://momentjs.com/">moment.js</a>, Copyright &copy; JS Foundation and other contributors.</li>
+          <li><a href="https://golang.org/">The Go Programming Language</a>, Copyright &copy; 2009 The Go Authors.</li>
           <li><a href="https://prometheus.io/">Prometheus</a>, Copyright &copy; 2012-2015 The Prometheus Authors.</li>
-          <li><a href="https://github.com/AudriusButkevicius/go-nat-pmp">AudriusButkevicius/go-nat-pmp</a>, Copyright &copy; 2013 John Howard Palevich.</li>
           <li><a href="https://github.com/AudriusButkevicius/recli">AudriusButkevicius/recli</a>, Copyright &copy; 2019 Audrius Butkevicius.</li>
+          <li><a href="https://github.com/Azure/go-ntlmssp">Azure/go-ntlmssp</a>, Copyright &copy; 2016 Microsoft.</li>
+          <li><a href="https://github.com/alecthomas/kong">alecthomas/kong</a>, Copyright &copy; 2018 Alec Thomas.</li>
           <li><a href="https://github.com/beorn7/perks">beorn7/perks</a>, Copyright &copy; 2013 Blake Mizerany.</li>
-          <li><a href="https://github.com/pierrec/lz4">pierrec/lz4</a>, Copyright &copy; 2015 Pierre Curto.</li>
-          <li><a href="https://github.com/calmh/du">calmh/du</a>, Public domain.</li>
+          <li><a href="https://github.com/calmh/incontainer">calmh/incontainer</a>, Copyright &copy; 2022 calmh.</li>
           <li><a href="https://github.com/calmh/xdr">calmh/xdr</a>, Copyright &copy; 2014 Jakob Borg.</li>
+          <li><a href="https://github.com/ccding/go-stun">ccding/go-stun</a>, Copyright &copy; 2016 Cong Ding.</li>
+          <li><a href="https://github.com/cespare/xxhash/v2">cespare/xxhash/v2</a>, Copyright &copy; 2016 Caleb Spare.</li>
           <li><a href="https://github.com/chmduquesne/rollinghash">chmduquesne/rollinghash</a>, Copyright &copy; 2015 Christophe-Marie Duquesne.</li>
-          <li><a href="https://github.com/d4l3k/messagediff">d4l3k/messagediff</a>, Copyright &copy; 2015 Tristan Rice.</li>
+          <li><a href="https://github.com/cpuguy83/go-md2man/v2">cpuguy83/go-md2man/v2</a>, Copyright &copy; 2014 Brian Goff.</li>
+          <li><a href="https://github.com/davecgh/go-spew">davecgh/go-spew</a>, Copyright &copy; 2012-2016 Dave Collins.</li>
+          <li><a href="https://github.com/go-asn1-ber/asn1-ber">go-asn1-ber/asn1-ber</a>, Copyright &copy; 2011-2015 Michael Mitton (mmitton@gmail.com).</li>
+          <li><a href="https://github.com/go-ldap/ldap">go-ldap/ldap</a>, Copyright &copy; 2011-2015 Michael Mitton (mmitton@gmail.com).</li>
+          <li><a href="https://github.com/uber-go/automaxprocs">go.uber.org/automaxprocs</a>, Copyright &copy; 2017 Uber Technologies, Inc.</li>
           <li><a href="https://github.com/gobwas/glob">gobwas/glob</a>, Copyright &copy; 2016 Sergey Kamardin.</li>
-          <li><a href="https://github.com/golang/groupcache">golang/groupcache</a>, Copyright &copy; 2013 Google Inc.</li>
-          <li><a href="https://github.com/golang/protobuf">golang/protobuf</a>, Copyright &copy; 2010 The Go Authors.</li>
+          <li><a href="https://github.com/gofrs/flock">gofrs/flock</a>, Copyright &copy; 2018-2025, The Gofrs.</li>
           <li><a href="https://github.com/golang/snappy">golang/snappy</a>, Copyright &copy; 2011 The Snappy-Go Authors.</li>
+          <li><a href="https://github.com/protocolbuffers/protobuf-go">google.golang.org/protobuf</a>, Copyright &copy; 2018 The Go Authors.</li>
+          <li><a href="https://github.com/google/uuid">google/uuid</a>, Copyright &copy; 2009,2014 Google Inc.</li>
+          <li><a href="https://gopkg.in/yaml.v3">gopkg.in/yaml.v3</a>, Copyright &copy; 2025, the gopkg.in/yaml.v3 authors.</li>
+          <li><a href="https://github.com/greatroar/blobloom">greatroar/blobloom</a>, Copyright &copy; 2020-2024 the Blobloom authors.</li>
+          <li><a href="https://github.com/hashicorp/errwrap">hashicorp/errwrap</a>, Copyright &copy; 2014 HashiCorp, Inc.</li>
+          <li><a href="https://github.com/hashicorp/go-multierror">hashicorp/go-multierror</a>, Copyright &copy; 2014 HashiCorp, Inc.</li>
+          <li><a href="https://github.com/hashicorp/golang-lru">hashicorp/golang-lru</a>, Copyright &copy; 2014 HashiCorp, Inc.</li>
           <li><a href="https://github.com/jackpal/gateway">jackpal/gateway</a>, Copyright &copy; 2010 Jack Palevich.</li>
+          <li><a href="https://github.com/jackpal/go-nat-pmp">jackpal/go-nat-pmp</a>, Copyright 2013 John Howard Palevich.</li>
+          <li><a href="https://github.com/julienschmidt/httprouter">julienschmidt/httprouter</a>, Copyright &copy; 2013, Julien Schmidt.</li>
           <li><a href="https://github.com/kballard/go-shellquote">kballard/go-shellquote</a>, Copyright &copy; 2014 Kevin Ballard.</li>
-          <li><a href="https://github.com/mattn/go-isatty">mattn/go-isatty</a>, Copyright &copy; Yasuhiro MATSUMOTO.</li>
-          <li><a href="https://github.com/matttproud/golang_protobuf_extensions">matttproud/golang_protobuf_extensions</a>, Copyright &copy; 2012 Matt T. Proud.</li>
-          <li><a href="https://github.com/oschwald/geoip2-golang">oschwald/geoip2-golang</a>, Copyright &copy; 2015, Gregory J. Oschwald.</li>
-          <li><a href="https://github.com/oschwald/maxminddb-golang">oschwald/maxminddb-golang</a>, Copyright &copy; 2015, Gregory J. Oschwald.</li>
-          <li><a href="https://github.com/petermattis/goid">petermattis/goid</a>, Copyright &copy; 2015-2016 Peter Mattis.</li>
+          <li><a href="https://github.com/klauspost/compress">klauspost/compress</a>, Copyright &copy; 2012 The Go Authors.</li>
+          <li><a href="https://github.com/miscreant/miscreant.go">miscreant/miscreant.go</a>, Copyright &copy; 2017-2019 The Miscreant Developers.</li>
+          <li><a href="https://github.com/munnerz/goautoneg">munnerz/goautoneg</a>, Copyright &copy; 2011, Open Knowledge Foundation Ltd.</li>
+          <li><a href="https://github.com/pierrec/lz4">pierrec/lz4</a>, Copyright &copy; 2015 Pierre Curto.</li>
           <li><a href="https://github.com/pkg/errors">pkg/errors</a>, Copyright &copy; 2015, Dave Cheney.</li>
+          <li><a href="https://github.com/pmezard/go-difflib">pmezard/go-difflib</a>, Copyright &copy; 2013, Patrick Mezard.</li>
+          <li><a href="https://github.com/posener/complete">posener/complete</a>, Copyright &copy; 2017 Eyal Posener.</li>
+          <li><a href="https://github.com/prometheus/client_golang">prometheus/client_golang</a>, Copyright 2012-2015 The Prometheus Authors.</li>
+          <li><a href="https://github.com/prometheus/client_model">prometheus/client_model</a>, Copyright &copy; 2025, the prometheus/client_model authors.</li>
+          <li><a href="https://github.com/prometheus/common">prometheus/common</a>, Copyright &copy; 2025, the prometheus/common authors.</li>
+          <li><a href="https://github.com/prometheus/procfs">prometheus/procfs</a>, Copyright &copy; 2025, the prometheus/procfs authors.</li>
+          <li><a href="https://github.com/quic-go/quic-go">quic-go/quic-go</a>, Copyright &copy; 2016 the quic-go authors & Google, Inc.</li>
           <li><a href="https://github.com/rcrowley/go-metrics">rcrowley/go-metrics</a>, Copyright &copy; 2012 Richard Crowley.</li>
-          <li><a href="https://github.com/sasha-s/go-deadlock">sasha-s/go-deadlock</a>, Copyright &copy; 2016 sasha-s.</li>
-          <li><a href="https://github.com/syncthing/notify">syncthing/notify</a>, Copyright &copy; 2014-2015 The Notify Authors.</li>
+          <li><a href="https://github.com/riywo/loginshell">riywo/loginshell</a>, Copyright &copy; 2019 Ryosuke IWANAGA.</li>
+          <li><a href="https://github.com/russross/blackfriday/v2">russross/blackfriday/v2</a>, Copyright &copy; 2011 Russ Ross.</li>
+          <li><a href="https://github.com/shirou/gopsutil">shirou/gopsutil</a>, Copyright &copy; 2014, WAKAYAMA Shirou.</li>
+          <li><a href="https://github.com/stretchr/objx">stretchr/objx</a>, Copyright &copy; 2014 Stretchr, Inc.</li>
+          <li><a href="https://github.com/stretchr/testify">stretchr/testify</a>, Copyright &copy; 2012-2020 Mat Ryer, Tyler Bunnell and contributors.</li>
           <li><a href="https://github.com/syndtr/goleveldb">syndtr/goleveldb</a>, Copyright &copy; 2012 Suryandaru Triandana.</li>
           <li><a href="https://github.com/thejerf/suture">thejerf/suture</a>, Copyright &copy; 2014-2015 Barracuda Networks, Inc.</li>
-          <li><a href="https://github.com/urfave/cli">urfave/cli</a>, Copyright &copy; 2016 Jeremy Saenz &amp; Contributors.</li>
+          <li><a href="https://github.com/tklauser/go-sysconf">tklauser/go-sysconf</a>, Copyright &copy; 2018-2022, Tobias Klauser.</li>
+          <li><a href="https://github.com/tklauser/numcpus">tklauser/numcpus</a>, Copyright &copy; 2018-2024 Tobias Klauser.</li>
+          <li><a href="https://github.com/urfave/cli">urfave/cli</a>, Copyright &copy; 2016 Jeremy Saenz & Contributors.</li>
           <li><a href="https://github.com/vitrun/qart">vitrun/qart</a>, Copyright &copy; 2010-2011 The Go Authors.</li>
-          <li><a href="https://gopkg.in/asn1-ber.v1">gopkg.in/asn1-ber.v1</a>, Copyright &copy; 2011-2015 Michael Mitton, portions Copyright &copy; 2015-2016 go-asn1-ber Authors.</li>
-          <li><a href="https://gopkg.in/ldap.v2">gopkg.in/ldap.v2</a>, Copyright &copy; 2011-2015 Michael Mitton, portions Copyright &copy; 2015-2016 go-ldap Authors.</li>
-          <li><a href="https://golang.org">The Go Programming Language</a>, Copyright &copy; 2009 The Go Authors.</li>
-          <li>Font Awesome by Dave Gandy - <a href="http://fontawesome.io/">http://fontawesome.io</a></li>
+          <li><a href="https://github.com/willabides/kongplete">willabides/kongplete</a>, Copyright &copy; 2020 WillAbides.</li>
         </ul>
       </div>
 

gui/default/syncthing/core/syncthingController.js

@@ -1165,7 +1165,7 @@ angular.module('syncthing.core')
             }
 
             // Disconnected
-            if (!unused && $scope.deviceStats[deviceCfg.deviceID] && $scope.deviceStats[deviceCfg.deviceID].lastSeenDays && $scope.deviceStats[deviceCfg.deviceID].lastSeenDays >= 7) {
+            if (!unused && $scope.deviceStats[deviceCfg.deviceID] && (!$scope.deviceStats[deviceCfg.deviceID].lastSeenDays || $scope.deviceStats[deviceCfg.deviceID].lastSeenDays >= 7)) {
                 return status + 'disconnected-inactive';
             } else {
                 return status + 'disconnected';

internal/blob/azureblob/azureblob.go

@@ -0,0 +1,80 @@
+// Copyright (C) 2025 The Syncthing Authors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at https://mozilla.org/MPL/2.0/.
+
+package azureblob
+
+import (
+	"context"
+	"io"
+	"time"
+
+	stblob "github.com/syncthing/syncthing/internal/blob"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blob"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/container"
+)
+
+var _ stblob.Store = (*BlobStore)(nil)
+
+type BlobStore struct {
+	client    *azblob.Client
+	container string
+}
+
+func NewBlobStore(accountName, accountKey, containerName string) (*BlobStore, error) {
+	credential, err := azblob.NewSharedKeyCredential(accountName, accountKey)
+	if err != nil {
+		return nil, err
+	}
+	url := "https://" + accountName + ".blob.core.windows.net/"
+	sc, err := azblob.NewClientWithSharedKeyCredential(url, credential, &azblob.ClientOptions{})
+	if err != nil {
+		return nil, err
+	}
+	// This errors when the container already exists, which we ignore.
+	_, _ = sc.CreateContainer(context.Background(), containerName, &container.CreateOptions{})
+	return &BlobStore{
+		client:    sc,
+		container: containerName,
+	}, nil
+}
+
+func (a *BlobStore) Upload(ctx context.Context, key string, data io.Reader) error {
+	_, err := a.client.UploadStream(ctx, a.container, key, data, &blockblob.UploadStreamOptions{})
+	return err
+}
+
+func (a *BlobStore) Download(ctx context.Context, key string, w stblob.Writer) error {
+	resp, err := a.client.DownloadStream(ctx, a.container, key, &blob.DownloadStreamOptions{})
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	_, err = io.Copy(w, resp.Body)
+	return err
+}
+
+func (a *BlobStore) LatestKey(ctx context.Context) (string, error) {
+	opts := &azblob.ListBlobsFlatOptions{}
+	pager := a.client.NewListBlobsFlatPager(a.container, opts)
+	var latest string
+	var lastModified time.Time
+	for pager.More() {
+		page, err := pager.NextPage(ctx)
+		if err != nil {
+			return "", err
+		}
+		for _, blob := range page.Segment.BlobItems {
+			if latest == "" || blob.Properties.LastModified.After(lastModified) {
+				latest = *blob.Name
+				lastModified = *blob.Properties.LastModified
+			}
+		}
+	}
+	return latest, nil
+}

internal/blob/interface.go

@@ -0,0 +1,23 @@
+// Copyright (C) 2025 The Syncthing Authors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at https://mozilla.org/MPL/2.0/.
+
+package blob
+
+import (
+	"context"
+	"io"
+)
+
+type Store interface {
+	Upload(ctx context.Context, key string, r io.Reader) error
+	Download(ctx context.Context, key string, w Writer) error
+	LatestKey(ctx context.Context) (string, error)
+}
+
+type Writer interface {
+	io.Writer
+	io.WriterAt
+}

internal/blob/s3/s3.go

@@ -7,6 +7,7 @@
 package s3
 
 import (
+	"context"
 	"io"
 	"time"
 
@@ -15,8 +16,11 @@ import (
 	"github.com/aws/aws-sdk-go/aws/session"
 	"github.com/aws/aws-sdk-go/service/s3"
 	"github.com/aws/aws-sdk-go/service/s3/s3manager"
+	"github.com/syncthing/syncthing/internal/blob"
 )
 
+var _ blob.Store = (*Session)(nil)
+
 type Session struct {
 	bucket string
 	s3sess *session.Session
@@ -26,9 +30,10 @@ type Object = s3.Object
 
 func NewSession(endpoint, region, bucket, accessKeyID, secretKey string) (*Session, error) {
 	sess, err := session.NewSession(&aws.Config{
-		Region:      aws.String(region),
-		Endpoint:    aws.String(endpoint),
-		Credentials: credentials.NewStaticCredentials(accessKeyID, secretKey, ""),
+		Region:           aws.String(region),
+		Endpoint:         aws.String(endpoint),
+		Credentials:      credentials.NewStaticCredentials(accessKeyID, secretKey, ""),
+		S3ForcePathStyle: aws.Bool(true),
 	})
 	if err != nil {
 		return nil, err
@@ -39,7 +44,7 @@ func NewSession(endpoint, region, bucket, accessKeyID, secretKey string) (*Sessi
 	}, nil
 }
 
-func (s *Session) Upload(r io.Reader, key string) error {
+func (s *Session) Upload(_ context.Context, key string, r io.Reader) error {
 	uploader := s3manager.NewUploader(s.s3sess)
 	_, err := uploader.Upload(&s3manager.UploadInput{
 		Bucket: aws.String(s.bucket),
@@ -49,7 +54,31 @@ func (s *Session) Upload(r io.Reader, key string) error {
 	return err
 }
 
-func (s *Session) List(fn func(*Object) bool) error {
+func (s *Session) Download(_ context.Context, key string, w blob.Writer) error {
+	downloader := s3manager.NewDownloader(s.s3sess)
+	_, err := downloader.Download(w, &s3.GetObjectInput{
+		Bucket: aws.String(s.bucket),
+		Key:    aws.String(key),
+	})
+	return err
+}
+
+func (s *Session) LatestKey(_ context.Context) (string, error) {
+	var latestKey string
+	var lastModified time.Time
+	if err := s.list(func(obj *Object) bool {
+		if latestKey == "" || obj.LastModified.After(lastModified) {
+			latestKey = *obj.Key
+			lastModified = *obj.LastModified
+		}
+		return true
+	}); err != nil {
+		return "", err
+	}
+	return latestKey, nil
+}
+
+func (s *Session) list(fn func(*Object) bool) error {
 	svc := s3.New(s.s3sess)
 
 	opts := &s3.ListObjectsV2Input{
@@ -75,27 +104,3 @@ func (s *Session) List(fn func(*Object) bool) error {
 
 	return nil
 }
-
-func (s *Session) LatestKey() (string, error) {
-	var latestKey string
-	var lastModified time.Time
-	if err := s.List(func(obj *Object) bool {
-		if latestKey == "" || obj.LastModified.After(lastModified) {
-			latestKey = *obj.Key
-			lastModified = *obj.LastModified
-		}
-		return true
-	}); err != nil {
-		return "", err
-	}
-	return latestKey, nil
-}
-
-func (s *Session) Download(w io.WriterAt, key string) error {
-	downloader := s3manager.NewDownloader(s.s3sess)
-	_, err := downloader.Download(w, &s3.GetObjectInput{
-		Bucket: aws.String(s.bucket),
-		Key:    aws.String(key),
-	})
-	return err
-}

lib/api/api_auth.go

@@ -18,6 +18,7 @@ import (
 	ldap "github.com/go-ldap/ldap/v3"
 	"github.com/syncthing/syncthing/lib/config"
 	"github.com/syncthing/syncthing/lib/events"
+	"github.com/syncthing/syncthing/lib/osutil"
 	"github.com/syncthing/syncthing/lib/rand"
 )
 
@@ -27,15 +28,54 @@ const (
 	randomTokenLength  = 64
 )
 
-func emitLoginAttempt(success bool, username, address string, evLogger events.Logger) {
-	evLogger.Log(events.LoginAttempt, map[string]interface{}{
+func emitLoginAttempt(success bool, username string, r *http.Request, evLogger events.Logger) {
+	remoteAddress, proxy := remoteAddress(r)
+	evData := map[string]any{
 		"success":       success,
 		"username":      username,
-		"remoteAddress": address,
-	})
-	if !success {
-		l.Infof("Wrong credentials supplied during API authorization from %s", address)
+		"remoteAddress": remoteAddress,
 	}
+	if proxy != "" {
+		evData["proxy"] = proxy
+	}
+	evLogger.Log(events.LoginAttempt, evData)
+
+	if success {
+		return
+	}
+	if proxy != "" {
+		l.Infof("Wrong credentials supplied during API authorization from %s proxied by %s", remoteAddress, proxy)
+	} else {
+		l.Infof("Wrong credentials supplied during API authorization from %s", remoteAddress)
+	}
+}
+
+func remoteAddress(r *http.Request) (remoteAddr, proxy string) {
+	remoteAddr = r.RemoteAddr
+	remoteIP := osutil.IPFromString(r.RemoteAddr)
+
+	// parse X-Forwarded-For only if the proxy connects via unix socket, localhost or a LAN IP
+	var localProxy bool
+	if remoteIP != nil {
+		remoteAddr = remoteIP.String()
+		localProxy = remoteIP.IsLoopback() || remoteIP.IsPrivate() || remoteIP.IsLinkLocalUnicast()
+	} else if remoteAddr == "@" {
+		localProxy = true
+	}
+
+	if !localProxy {
+		return
+	}
+
+	forwardedAddr, _, _ := strings.Cut(r.Header.Get("X-Forwarded-For"), ",")
+	forwardedAddr = strings.TrimSpace(forwardedAddr)
+	forwardedIP := osutil.IPFromString(forwardedAddr)
+
+	if forwardedIP != nil {
+		proxy = remoteAddr
+		remoteAddr = forwardedIP.String()
+	}
+	return
 }
 
 func antiBruteForceSleep() {
@@ -51,7 +91,7 @@ func forbidden(w http.ResponseWriter) {
 	http.Error(w, "Forbidden", http.StatusForbidden)
 }
 
-func isNoAuthPath(path string) bool {
+func isNoAuthPath(path string, metricsWithoutAuth bool) bool {
 	// Local variable instead of module var to prevent accidental mutation
 	noAuthPaths := []string{
 		"/",
@@ -60,6 +100,10 @@ func isNoAuthPath(path string) bool {
 		"/rest/svc/lang", // Required to load language settings on login page
 	}
 
+	if metricsWithoutAuth {
+		noAuthPaths = append(noAuthPaths, "/metrics")
+	}
+
 	// Local variable instead of module var to prevent accidental mutation
 	noAuthPrefixes := []string{
 		// Static assets
@@ -115,7 +159,7 @@ func (m *basicAuthAndSessionMiddleware) ServeHTTP(w http.ResponseWriter, r *http
 	}
 
 	// Exception for static assets and REST calls that don't require authentication.
-	if isNoAuthPath(r.URL.Path) {
+	if isNoAuthPath(r.URL.Path, m.guiCfg.MetricsWithoutAuth) {
 		m.next.ServeHTTP(w, r)
 		return
 	}
@@ -148,7 +192,7 @@ func (m *basicAuthAndSessionMiddleware) passwordAuthHandler(w http.ResponseWrite
 		return
 	}
 
-	emitLoginAttempt(false, req.Username, r.RemoteAddr, m.evLogger)
+	emitLoginAttempt(false, req.Username, r, m.evLogger)
 	antiBruteForceSleep()
 	forbidden(w)
 }
@@ -171,7 +215,7 @@ func attemptBasicAuth(r *http.Request, guiCfg config.GUIConfiguration, ldapCfg c
 		return usernameFromIso, true
 	}
 
-	emitLoginAttempt(false, username, r.RemoteAddr, evLogger)
+	emitLoginAttempt(false, username, r, evLogger)
 	antiBruteForceSleep()
 	return "", false
 }

lib/api/api_csrf.go

@@ -78,7 +78,7 @@ func (m *csrfManager) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	if isNoAuthPath(r.URL.Path) {
+	if isNoAuthPath(r.URL.Path, false) {
 		// REST calls that don't require authentication also do not
 		// need a CSRF token.
 		m.next.ServeHTTP(w, r)

lib/api/tokenmanager.go

@@ -189,7 +189,7 @@ func (m *tokenCookieManager) createSession(username string, persistent bool, w h
 		Path:   "/",
 	})
 
-	emitLoginAttempt(true, username, r.RemoteAddr, m.evLogger)
+	emitLoginAttempt(true, username, r, m.evLogger)
 }
 
 func (m *tokenCookieManager) hasValidSession(r *http.Request) bool {

lib/config/config.go

@@ -68,13 +68,9 @@ var (
 	DefaultTheme = "default"
 	// Default stun servers should be substituted when the configuration
 	// contains <stunServer>default</stunServer>.
-
-	// DefaultPrimaryStunServers are servers provided by us (to avoid causing the public servers burden)
-	DefaultPrimaryStunServers = []string{
-		// Discontinued because of misuse. See https://forum.syncthing.net/t/stun-server-misuse/23319
-		//"stun.syncthing.net:3478",
-	}
-	DefaultSecondaryStunServers = []string{
+	// The primary stun servers are provided by us and are resolved via an SRV record
+	// The fallback stun servers are used if the primary ones can't be resolved or are down.
+	DefaultFallbackStunServers = []string{
 		"stun.counterpath.com:3478",
 		"stun.counterpath.net:3478",
 		"stun.ekiga.net:3478",

lib/config/config_test.go

@@ -92,6 +92,8 @@ func TestDefaultValues(t *testing.T) {
 			RawStunServers:            []string{"default"},
 			AnnounceLANAddresses:      true,
 			FeatureFlags:              []string{},
+			AuditEnabled:              false,
+			AuditFile:                 "",
 			ConnectionPriorityTCPLAN:  10,
 			ConnectionPriorityQUICLAN: 20,
 			ConnectionPriorityTCPWAN:  30,
@@ -101,7 +103,7 @@ func TestDefaultValues(t *testing.T) {
 		Defaults: Defaults{
 			Folder: FolderConfiguration{
 				FilesystemType:   FilesystemTypeBasic,
-				Path:             "~",
+				Path:             "",
 				Type:             FolderTypeSendReceive,
 				Devices:          []FolderDeviceConfiguration{{DeviceID: device1}},
 				RescanIntervalS:  3600,
@@ -181,7 +183,7 @@ func TestDeviceConfig(t *testing.T) {
 				Devices:          []FolderDeviceConfiguration{{DeviceID: device1}, {DeviceID: device4}},
 				Type:             FolderTypeSendOnly,
 				RescanIntervalS:  600,
-				FSWatcherEnabled: false,
+				FSWatcherEnabled: true,
 				FSWatcherDelayS:  10,
 				Copiers:          0,
 				Hashers:          0,
@@ -189,14 +191,18 @@ func TestDeviceConfig(t *testing.T) {
 				MinDiskFree:      Size{1, "%"},
 				MaxConflicts:     -1,
 				Versioning: VersioningConfiguration{
-					Params: map[string]string{},
+					CleanupIntervalS: 3600,
+					FSType:           FilesystemTypeBasic,
+					Params:           map[string]string{},
 				},
 				WeakHashThresholdPct: 25,
 				MarkerName:           DefaultMarkerName,
 				JunctionsAsDirs:      true,
 				MaxConcurrentWrites:  maxConcurrentWritesDefault,
 				XattrFilter: XattrFilter{
-					Entries: []XattrFilterEntry{},
+					MaxSingleEntrySize: 1024,
+					MaxTotalSize:       4096,
+					Entries:            []XattrFilterEntry{},
 				},
 			},
 		}
@@ -291,6 +297,8 @@ func TestOverriddenValues(t *testing.T) {
 		StunKeepaliveMinS:         900,
 		RawStunServers:            []string{"foo"},
 		FeatureFlags:              []string{"feature"},
+		AuditEnabled:              true,
+		AuditFile:                 "nggyu",
 		ConnectionPriorityTCPLAN:  40,
 		ConnectionPriorityQUICLAN: 45,
 		ConnectionPriorityTCPWAN:  50,

lib/config/filesystemtype.go

@@ -16,18 +16,31 @@ const (
 )
 
 func (t FilesystemType) ToFS() fs.FilesystemType {
+	if t == "" {
+		// legacy compat, zero value means basic
+		return fs.FilesystemTypeBasic
+	}
 	return fs.FilesystemType(string(t))
 }
 
 func (t FilesystemType) String() string {
+	if t == "" {
+		// legacy compat, zero value means basic
+		return string(FilesystemTypeBasic)
+	}
 	return string(t)
 }
 
 func (t FilesystemType) MarshalText() ([]byte, error) {
-	return []byte(t), nil
+	return []byte(t.String()), nil
 }
 
 func (t *FilesystemType) UnmarshalText(bs []byte) error {
+	if len(bs) == 0 {
+		// legacy compat, zero value means basic
+		*t = FilesystemTypeBasic
+		return nil
+	}
 	*t = FilesystemType(string(bs))
 	return nil
 }

lib/config/folderconfiguration.go

@@ -9,6 +9,8 @@ package config
 import (
 	"bytes"
 	"crypto/sha256"
+	"encoding/json"
+	"encoding/xml"
 	"errors"
 	"fmt"
 	"path"
@@ -23,6 +25,7 @@ import (
 	"github.com/syncthing/syncthing/lib/db"
 	"github.com/syncthing/syncthing/lib/fs"
 	"github.com/syncthing/syncthing/lib/protocol"
+	"github.com/syncthing/syncthing/lib/structutil"
 )
 
 var (
@@ -48,7 +51,7 @@ type FolderConfiguration struct {
 	ID                      string                      `json:"id" xml:"id,attr" nodefault:"true"`
 	Label                   string                      `json:"label" xml:"label,attr" restart:"false"`
 	FilesystemType          FilesystemType              `json:"filesystemType" xml:"filesystemType" default:"basic"`
-	Path                    string                      `json:"path" xml:"path,attr" default:"~"`
+	Path                    string                      `json:"path" xml:"path,attr"`
 	Type                    FolderType                  `json:"type" xml:"type,attr"`
 	Devices                 []FolderDeviceConfiguration `json:"devices" xml:"device"`
 	RescanIntervalS         int                         `json:"rescanIntervalS" xml:"rescanIntervalS,attr" default:"3600"`
@@ -399,3 +402,23 @@ func (f XattrFilter) GetMaxSingleEntrySize() int {
 func (f XattrFilter) GetMaxTotalSize() int {
 	return f.MaxTotalSize
 }
+
+func (f *FolderConfiguration) UnmarshalJSON(data []byte) error {
+	structutil.SetDefaults(f)
+
+	// avoid recursing into this method
+	type noCustomUnmarshal FolderConfiguration
+	ptr := (*noCustomUnmarshal)(f)
+
+	return json.Unmarshal(data, ptr)
+}
+
+func (f *FolderConfiguration) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
+	structutil.SetDefaults(f)
+
+	// avoid recursing into this method
+	type noCustomUnmarshal FolderConfiguration
+	ptr := (*noCustomUnmarshal)(f)
+
+	return d.DecodeElement(ptr, &start)
+}

lib/config/guiconfiguration.go

@@ -25,6 +25,7 @@ type GUIConfiguration struct {
 	User                      string   `json:"user" xml:"user,omitempty"`
 	Password                  string   `json:"password" xml:"password,omitempty"`
 	AuthMode                  AuthMode `json:"authMode" xml:"authMode,omitempty"`
+	MetricsWithoutAuth        bool     `json:"metricsWithoutAuth" xml:"metricsWithoutAuth" default:"false"`
 	RawUseTLS                 bool     `json:"useTLS" xml:"tls,attr"`
 	APIKey                    string   `json:"apiKey" xml:"apikey,omitempty"`
 	InsecureAdminAccess       bool     `json:"insecureAdminAccess" xml:"insecureAdminAccess,omitempty"`

lib/config/optionsconfiguration.go

@@ -8,8 +8,10 @@ package config
 
 import (
 	"fmt"
+	"net"
 	"runtime"
 	"slices"
+	"strings"
 
 	"github.com/syncthing/syncthing/lib/protocol"
 	"github.com/syncthing/syncthing/lib/rand"
@@ -66,22 +68,21 @@ type OptionsConfiguration struct {
 	AnnounceLANAddresses        bool     `json:"announceLANAddresses" xml:"announceLANAddresses" default:"true"`
 	SendFullIndexOnUpgrade      bool     `json:"sendFullIndexOnUpgrade" xml:"sendFullIndexOnUpgrade"`
 	FeatureFlags                []string `json:"featureFlags" xml:"featureFlag"`
+	AuditEnabled                bool     `json:"auditEnabled" xml:"auditEnabled" default:"false"`
+	AuditFile                   string   `json:"auditFile" xml:"auditFile"`
 	// The number of connections at which we stop trying to connect to more
 	// devices, zero meaning no limit. Does not affect incoming connections.
 	ConnectionLimitEnough int `json:"connectionLimitEnough" xml:"connectionLimitEnough"`
 	// The maximum number of connections which we will allow in total, zero
 	// meaning no limit. Affects incoming connections and prevents
 	// attempting outgoing connections.
-	ConnectionLimitMax int `json:"connectionLimitMax" xml:"connectionLimitMax"`
-	// When set, this allows TLS 1.2 on sync connections, where we otherwise
-	// default to TLS 1.3+ only.
-	InsecureAllowOldTLSVersions        bool `json:"insecureAllowOldTLSVersions" xml:"insecureAllowOldTLSVersions"`
-	ConnectionPriorityTCPLAN           int  `json:"connectionPriorityTcpLan" xml:"connectionPriorityTcpLan" default:"10"`
-	ConnectionPriorityQUICLAN          int  `json:"connectionPriorityQuicLan" xml:"connectionPriorityQuicLan" default:"20"`
-	ConnectionPriorityTCPWAN           int  `json:"connectionPriorityTcpWan" xml:"connectionPriorityTcpWan" default:"30"`
-	ConnectionPriorityQUICWAN          int  `json:"connectionPriorityQuicWan" xml:"connectionPriorityQuicWan" default:"40"`
-	ConnectionPriorityRelay            int  `json:"connectionPriorityRelay" xml:"connectionPriorityRelay" default:"50"`
-	ConnectionPriorityUpgradeThreshold int  `json:"connectionPriorityUpgradeThreshold" xml:"connectionPriorityUpgradeThreshold" default:"0"`
+	ConnectionLimitMax                 int `json:"connectionLimitMax" xml:"connectionLimitMax"`
+	ConnectionPriorityTCPLAN           int `json:"connectionPriorityTcpLan" xml:"connectionPriorityTcpLan" default:"10"`
+	ConnectionPriorityQUICLAN          int `json:"connectionPriorityQuicLan" xml:"connectionPriorityQuicLan" default:"20"`
+	ConnectionPriorityTCPWAN           int `json:"connectionPriorityTcpWan" xml:"connectionPriorityTcpWan" default:"30"`
+	ConnectionPriorityQUICWAN          int `json:"connectionPriorityQuicWan" xml:"connectionPriorityQuicWan" default:"40"`
+	ConnectionPriorityRelay            int `json:"connectionPriorityRelay" xml:"connectionPriorityRelay" default:"50"`
+	ConnectionPriorityUpgradeThreshold int `json:"connectionPriorityUpgradeThreshold" xml:"connectionPriorityUpgradeThreshold" default:"0"`
 	// Legacy deprecated
 	DeprecatedUPnPEnabled        bool     `json:"-" xml:"upnpEnabled,omitempty"`        // Deprecated: Do not use.
 	DeprecatedUPnPLeaseM         int      `json:"-" xml:"upnpLeaseMinutes,omitempty"`   // Deprecated: Do not use.
@@ -184,15 +185,22 @@ func (opts OptionsConfiguration) StunServers() []string {
 	for _, addr := range opts.RawStunServers {
 		switch addr {
 		case "default":
-			defaultPrimaryAddresses := make([]string, len(DefaultPrimaryStunServers))
-			copy(defaultPrimaryAddresses, DefaultPrimaryStunServers)
-			rand.Shuffle(defaultPrimaryAddresses)
-			addresses = append(addresses, defaultPrimaryAddresses...)
+			_, records, err := net.LookupSRV("stun", "udp", "syncthing.net")
+			if err != nil {
+				l.Debugf("Unable to resolve primary STUN servers via DNS:", err)
+			}
 
-			defaultSecondaryAddresses := make([]string, len(DefaultSecondaryStunServers))
-			copy(defaultSecondaryAddresses, DefaultSecondaryStunServers)
-			rand.Shuffle(defaultSecondaryAddresses)
-			addresses = append(addresses, defaultSecondaryAddresses...)
+			for _, record := range records {
+				priority := record.Priority
+				target := strings.TrimSuffix(record.Target, ".")
+				address := fmt.Sprintf("%s:%d", target, record.Port)
+				l.Debugf("Resolved primary STUN server %s with priority %d", address, priority)
+				addresses = append(addresses, address)
+			}
+
+			fallbackAddresses := slices.Clone(DefaultFallbackStunServers)
+			rand.Shuffle(fallbackAddresses)
+			addresses = append(addresses, fallbackAddresses...)
 		default:
 			addresses = append(addresses, addr)
 		}

lib/config/testdata/overridenvalues.xml

@@ -45,6 +45,8 @@
         <unackedNotificationID>asdfasdf</unackedNotificationID>
         <announceLANAddresses>false</announceLANAddresses>
         <featureFlag>feature</featureFlag>
+        <auditEnabled>true</auditEnabled>
+        <auditFile>nggyu</auditFile>
         <connectionPriorityTcpLan>40</connectionPriorityTcpLan>
         <connectionPriorityQuicLan>45</connectionPriorityQuicLan>
         <connectionPriorityTcpWan>50</connectionPriorityTcpWan>

lib/dialer/internal.go

@@ -28,7 +28,7 @@ func init() {
 			TLSHandshakeTimeout: 10 * time.Second,
 		}
 
-		// Defer this, so that logging gets setup.
+		// Defer this, so that logging gets set up.
 		go func() {
 			time.Sleep(500 * time.Millisecond)
 			l.Infoln("Proxy settings detected")

lib/fs/basicfs.go

@@ -336,10 +336,6 @@ func (*BasicFilesystem) underlying() (Filesystem, bool) {
 	return nil, false
 }
 
-func (*BasicFilesystem) wrapperType() filesystemWrapperType {
-	return filesystemWrapperTypeNone
-}
-
 // basicFile implements the fs.File interface on top of an os.File
 type basicFile struct {
 	*os.File

lib/fs/basicfs_watch.go

@@ -54,7 +54,7 @@ func (f *BasicFilesystem) Watch(name string, ignore Matcher, ctx context.Context
 	if err != nil {
 		notify.Stop(backendChan)
 		if reachedMaxUserWatches(err) {
-			err = errors.New("failed to setup inotify handler. Please increase inotify limits, see https://docs.syncthing.net/users/faq.html#inotify-limits")
+			err = errors.New("failed to set up inotify handler. Please increase inotify limits, see https://docs.syncthing.net/users/faq.html#inotify-limits")
 		}
 		return nil, nil, err
 	}

lib/fs/casefs.go

@@ -357,10 +357,6 @@ func (f *caseFilesystem) underlying() (Filesystem, bool) {
 	return f.Filesystem, true
 }
 
-func (*caseFilesystem) wrapperType() filesystemWrapperType {
-	return filesystemWrapperTypeCase
-}
-
 func (f *caseFilesystem) checkCase(name string) error {
 	var err error
 	if name, err = Canonicalize(name); err != nil {

lib/fs/casefs_test.go

@@ -161,10 +161,11 @@ func BenchmarkWalkCaseFakeFS100k(b *testing.B) {
 		b.Fatal(err)
 	}
 	b.Run("rawfs", func(b *testing.B) {
-		var fakefs *fakeFS
-		if ffs, ok := unwrapFilesystem(fsys, filesystemWrapperTypeNone); ok {
-			fakefs = ffs.(*fakeFS)
+		fakefs, ok := unwrapFilesystem[*fakeFS](fsys)
+		if !ok {
+			panic("expected unwrap to fakefs")
 		}
+
 		fakefs.resetCounters()
 		benchmarkWalkFakeFS(b, fsys, paths, 0, "")
 		fakefs.reportMetricsPerOp(b)
@@ -180,9 +181,10 @@ func BenchmarkWalkCaseFakeFS100k(b *testing.B) {
 				cache: newCaseCache(),
 			},
 		}
-		var fakefs *fakeFS
-		if ffs, ok := unwrapFilesystem(fsys, filesystemWrapperTypeNone); ok {
-			fakefs = ffs.(*fakeFS)
+
+		fakefs, ok := unwrapFilesystem[*fakeFS](fsys)
+		if !ok {
+			panic("expected unwrap to fakefs")
 		}
 		fakefs.resetCounters()
 		benchmarkWalkFakeFS(b, casefs, paths, 0, "")
@@ -209,10 +211,12 @@ func BenchmarkWalkCaseFakeFS100k(b *testing.B) {
 				cache: newCaseCache(),
 			},
 		}
-		var fakefs *fakeFS
-		if ffs, ok := unwrapFilesystem(fsys, filesystemWrapperTypeNone); ok {
-			fakefs = ffs.(*fakeFS)
+
+		fakefs, ok := unwrapFilesystem[*fakeFS](fsys)
+		if !ok {
+			panic("expected unwrap to fakefs")
 		}
+
 		fakefs.resetCounters()
 		benchmarkWalkFakeFS(b, casefs, paths, otherOpEvery, otherOpPath)
 		fakefs.reportMetricsPerOp(b)

lib/fs/errorfs.go

@@ -69,7 +69,3 @@ func (fs *errorFilesystem) PlatformData(_ string, _, _ bool, _ XattrFilter) (pro
 func (*errorFilesystem) underlying() (Filesystem, bool) {
 	return nil, false
 }
-
-func (*errorFilesystem) wrapperType() filesystemWrapperType {
-	return filesystemWrapperTypeError
-}

lib/fs/fakefs.go

@@ -724,10 +724,6 @@ func (*fakeFS) underlying() (Filesystem, bool) {
 	return nil, false
 }
 
-func (*fakeFS) wrapperType() filesystemWrapperType {
-	return filesystemWrapperTypeNone
-}
-
 func (fs *fakeFS) resetCounters() {
 	fs.mut.Lock()
 	fs.counters = fakeFSCounters{}

lib/fs/filesystem.go

@@ -21,18 +21,6 @@ import (
 	"github.com/syncthing/syncthing/lib/protocol"
 )
 
-type filesystemWrapperType int32
-
-const (
-	filesystemWrapperTypeNone filesystemWrapperType = iota
-	filesystemWrapperTypeMtime
-	filesystemWrapperTypeCase
-	filesystemWrapperTypeError
-	filesystemWrapperTypeWalk
-	filesystemWrapperTypeLog
-	filesystemWrapperTypeMetrics
-)
-
 type XattrFilter interface {
 	Permit(string) bool
 	GetMaxSingleEntrySize() int
@@ -75,10 +63,11 @@ type Filesystem interface {
 	PlatformData(name string, withOwnership, withXattrs bool, xattrFilter XattrFilter) (protocol.PlatformData, error)
 	GetXattr(name string, xattrFilter XattrFilter) ([]protocol.Xattr, error)
 	SetXattr(path string, xattrs []protocol.Xattr, xattrFilter XattrFilter) error
+}
 
+type wrappingFilesystem interface {
 	// Used for unwrapping things
 	underlying() (Filesystem, bool)
-	wrapperType() filesystemWrapperType
 }
 
 // The File interface abstracts access to a regular file, being a somewhat
@@ -353,16 +342,23 @@ func Canonicalize(file string) (string, error) {
 	return file, nil
 }
 
-// unwrapFilesystem removes "wrapping" filesystems to expose the filesystem of the requested wrapperType, if it exists.
-func unwrapFilesystem(fs Filesystem, wrapperType filesystemWrapperType) (Filesystem, bool) {
-	var ok bool
+// unwrapFilesystem removes "wrapping" filesystems to expose the filesystem of the requested wrapper type T, if it exists.
+func unwrapFilesystem[T Filesystem](fs Filesystem) (T, bool) {
 	for {
-		if fs.wrapperType() == wrapperType {
-			return fs, true
+		if unwrapped, ok := fs.(T); ok {
+			return unwrapped, true
 		}
-		fs, ok = fs.underlying()
+
+		wrappingFs, ok := fs.(wrappingFilesystem)
 		if !ok {
-			return nil, false
+			var x T
+			return x, false
+		}
+
+		fs, ok = wrappingFs.underlying()
+		if !ok {
+			var x T
+			return x, false
 		}
 	}
 }

lib/fs/logfs.go

@@ -177,7 +177,3 @@ func (fs *logFilesystem) Usage(name string) (Usage, error) {
 func (fs *logFilesystem) underlying() (Filesystem, bool) {
 	return fs.Filesystem, true
 }
-
-func (*logFilesystem) wrapperType() filesystemWrapperType {
-	return filesystemWrapperTypeLog
-}

lib/fs/metrics.go

@@ -273,10 +273,6 @@ func (m *metricsFS) underlying() (Filesystem, bool) {
 	return m.next, true
 }
 
-func (m *metricsFS) wrapperType() filesystemWrapperType {
-	return filesystemWrapperTypeMetrics
-}
-
 type metricsFile struct {
 	fs   *metricsFS
 	next File

lib/fs/mtimefs.go

@@ -146,10 +146,6 @@ func (f *mtimeFS) underlying() (Filesystem, bool) {
 	return f.Filesystem, true
 }
 
-func (*mtimeFS) wrapperType() filesystemWrapperType {
-	return filesystemWrapperTypeMtime
-}
-
 func (f *mtimeFS) save(name string, real, virtual time.Time) {
 	if f.caseInsensitive {
 		name = UnicodeLowercaseNormalized(name)
@@ -255,13 +251,9 @@ func (t *MtimeMapping) Unmarshal(bs []byte) error {
 }
 
 func GetMtimeMapping(fs Filesystem, file string) (MtimeMapping, error) {
-	fs, ok := unwrapFilesystem(fs, filesystemWrapperTypeMtime)
+	mtimeFs, ok := unwrapFilesystem[*mtimeFS](fs)
 	if !ok {
 		return MtimeMapping{}, errors.New("failed to unwrap")
 	}
-	mtimeFs, ok := fs.(*mtimeFS)
-	if !ok {
-		return MtimeMapping{}, errors.New("unwrapping failed")
-	}
 	return mtimeFs.load(file)
 }

lib/fs/mtimefs_test.go

@@ -261,7 +261,7 @@ func newMtimeFS(path string, db database, options ...MtimeFSOption) *mtimeFS {
 
 func newMtimeFSWithWalk(path string, db database, options ...MtimeFSOption) (*mtimeFS, *walkFilesystem) {
 	fs := NewFilesystem(FilesystemTypeBasic, path, NewMtimeOption(db, options...))
-	wfs, _ := unwrapFilesystem(fs, filesystemWrapperTypeWalk)
-	mfs, _ := unwrapFilesystem(fs, filesystemWrapperTypeMtime)
-	return mfs.(*mtimeFS), wfs.(*walkFilesystem)
+	wfs, _ := unwrapFilesystem[*walkFilesystem](fs)
+	mfs, _ := unwrapFilesystem[*mtimeFS](fs)
+	return mfs, wfs
 }

lib/fs/walkfs.go

@@ -153,7 +153,3 @@ func (f *walkFilesystem) Walk(root string, walkFn WalkFunc) error {
 func (f *walkFilesystem) underlying() (Filesystem, bool) {
 	return f.Filesystem, true
 }
-
-func (*walkFilesystem) wrapperType() filesystemWrapperType {
-	return filesystemWrapperTypeWalk
-}

lib/locations/locations.go

@@ -33,6 +33,7 @@ const (
 	AuditLog      LocationEnum = "auditLog"
 	GUIAssets     LocationEnum = "guiAssets"
 	DefFolder     LocationEnum = "defFolder"
+	LockFile      LocationEnum = "lockFile"
 )
 
 type BaseDirEnum string
@@ -124,6 +125,7 @@ var locationTemplates = map[LocationEnum]string{
 	AuditLog:      "${data}/audit-%{timestamp}.log",
 	GUIAssets:     "${config}/gui",
 	DefFolder:     "${userHome}/Sync",
+	LockFile:      "${data}/syncthing.lock",
 }
 
 var locations = make(map[LocationEnum]string)

lib/model/folder_sendrecv.go

@@ -1854,6 +1854,7 @@ func (f *sendReceiveFolder) moveForConflict(name, lastModBy string, scanChan cha
 		return nil
 	}
 
+	metricFolderConflictsTotal.WithLabelValues(f.ID).Inc()
 	newName := conflictName(name, lastModBy)
 	err := f.mtimefs.Rename(name, newName)
 	if fs.IsNotExist(err) {

lib/model/metrics.go

@@ -57,6 +57,13 @@ var (
 		Name:      "folder_processed_bytes_total",
 		Help:      "Total amount of data processed during folder syncing, per folder ID and data source (network/local_origin/local_other/local_shifted/skipped)",
 	}, []string{"folder", "source"})
+
+	metricFolderConflictsTotal = promauto.NewCounterVec(prometheus.CounterOpts{
+		Namespace: "syncthing",
+		Subsystem: "model",
+		Name:      "folder_conflicts_total",
+		Help:      "Total number of conflicts",
+	}, []string{"folder"})
 )
 
 const (
@@ -90,4 +97,5 @@ func registerFolderMetrics(folderID string) {
 	metricFolderProcessedBytesTotal.WithLabelValues(folderID, metricSourceLocalOther)
 	metricFolderProcessedBytesTotal.WithLabelValues(folderID, metricSourceLocalShifted)
 	metricFolderProcessedBytesTotal.WithLabelValues(folderID, metricSourceSkipped)
+	metricFolderConflictsTotal.WithLabelValues(folderID)
 }

lib/osutil/lowprio_linux.go

@@ -15,32 +15,6 @@ import (
 	"syscall"
 )
 
-const ioprioClassShift = 13
-
-type ioprioClass int
-
-const (
-	ioprioClassRT ioprioClass = iota + 1
-	ioprioClassBE
-	ioprioClassIdle
-)
-
-const (
-	ioprioWhoProcess = iota + 1
-	ioprioWhoPGRP
-	ioprioWhoUser
-)
-
-func ioprioSet(class ioprioClass, value int) error {
-	res, _, err := syscall.Syscall(syscall.SYS_IOPRIO_SET,
-		uintptr(ioprioWhoProcess), 0,
-		uintptr(class)<<ioprioClassShift|uintptr(value))
-	if res == 0 {
-		return nil
-	}
-	return err
-}
-
 // SetLowPriority lowers the process CPU scheduling priority, and possibly
 // I/O priority depending on the platform and OS.
 func SetLowPriority() error {
@@ -89,14 +63,13 @@ func SetLowPriority() error {
 		}
 	}
 
+	// For any new process, the default is to be assigned the IOPRIO_CLASS_BE
+	// scheduling class. This class directly maps the BE prio level to the
+	// niceness of a process, determined as: io_nice = (cpu_nice + 20) / 5.
+	// For example, a niceness of 11 results in an I/O priority of B6.
+	// https://www.kernel.org/doc/Documentation/block/ioprio.txt
 	if err := syscall.Setpriority(syscall.PRIO_PGRP, pidSelf, wantNiceLevel); err != nil {
 		return fmt.Errorf("set niceness: %w", err)
 	}
-
-	// Best effort, somewhere to the end of the scale (0 through 7 being the
-	// range).
-	if err := ioprioSet(ioprioClassBE, 5); err != nil {
-		return fmt.Errorf("set I/O priority: %w", err)
-	}
 	return nil
 }

lib/osutil/net.go

@@ -8,6 +8,7 @@ package osutil
 
 import (
 	"net"
+	"strings"
 )
 
 // GetInterfaceAddrs returns the IP networks of all interfaces that are up.
@@ -46,6 +47,17 @@ func GetInterfaceAddrs(includePtP bool) ([]*net.IPNet, error) {
 	return nets, nil
 }
 
+func IPFromString(addr string) net.IP {
+	// strip the port
+	host, _, err := net.SplitHostPort(addr)
+	if err != nil {
+		host = addr
+	}
+	// strip IPv6 zone identifier
+	host, _, _ = strings.Cut(host, "%")
+	return net.ParseIP(host)
+}
+
 func IPFromAddr(addr net.Addr) (net.IP, error) {
 	switch a := addr.(type) {
 	case *net.TCPAddr:

lib/osutil/osutil_test.go

@@ -135,3 +135,35 @@ func TestRenameOrCopy(t *testing.T) {
 		}
 	}
 }
+
+func TestIPFromString(t *testing.T) {
+	t.Parallel()
+
+	cases := []struct {
+		in  string
+		out string
+	}{
+		{"192.168.178.1", "192.168.178.1"},
+		{"192.168.178.1:8384", "192.168.178.1"},
+		{"fe80::20c:29ff:fe9a:46d2", "fe80::20c:29ff:fe9a:46d2"},
+		{"[fe80::20c:29ff:fe9a:46d2]:8384", "fe80::20c:29ff:fe9a:46d2"},
+		{"[fe80::20c:29ff:fe9a:46d2%eno1]:8384", "fe80::20c:29ff:fe9a:46d2"},
+		{"google.com", ""},
+		{"1.1.1.1.1", ""},
+		{"", ""},
+	}
+
+	for _, c := range cases {
+		ip := osutil.IPFromString(c.in)
+		var address string
+		if ip != nil {
+			address = ip.String()
+		} else {
+			address = ""
+		}
+
+		if c.out != address {
+			t.Fatalf("result should be %s != %s", c.out, address)
+		}
+	}
+}