Syncthing - Open Source BitTorrent sync alternative

I've found this open source BitTorrent sync alternative.

I've set up a sync between multiple computers and it works great.

https://syncthing.net/

Finally I can get rid of some of the cloud services I was using.

 

Syncthing v1.0 Released (January 1, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.0

https://forum.syncthing.net/t/syncthing-v1-0-0/12616
Bugfixes:

• #5324: Incorrect warning when --home and path on same directory level
• #5369: Empty file field in log when normalizePath failed
• #5372: Event system can cause deadlock

Enhancements:

• #2760: Option to limit max simultaneous scans
• #5286: Add hardening options to systemd units
• #5320: Show configured rate limit in the GUI
• #5336: Show list of locally changed files for receive only folders

Other issues:

• #5334: New chmduquesne/rollinghash breaks tests
• #5362: lib/model: TestDeregister* tests are bad

 

Syncthing v1.1 Released (February 5, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.1

https://forum.syncthing.net/t/syncthing-v1-0-1-plus-discovery-relay-servers/12819
Bugfixes:

• #2697: Folder status “box” character not readable by screen readers / not color blindness friendly
• #4216: “Automatic upgrades” web GUI option in pre-release versions is misleading
• #5340: Incorrectly out of sync, sequence number oddness.
• #5385: Deleted files show up as failed scans
• #5389: gui: Missing icon in footer
• #5392: Data race in model.(*folder).startWatch()
• #5397: Scan errors about ignored files displayed in web UI
• #5401: panic: runtime error: invalid memory address or nil pointer dereference in ignore.go
• #5411: Illegal characters in folder name on auto accept
• #5428: Beeps randomly on Windows

Other issues:

• #5148: Consider switching to Go modules
• #5422: TestIssue3028 flaky on windows

Also:
There are new binary releases of stdiscosrv and strelayserv to fix CVE-2019-6486.

• Discovery Server v1.0.1
• Relay Server v1.0.1

 

Syncthing v1.1.1 Released (April 2, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.1.1

https://forum.syncthing.net/t/syncthing-v1-1-1/13122
Bugfixes:

• #5531: Flush to database based on size instead of entries
• #5571: Dir/symlink updates overwrite conflicts & unscanned files
• #5599: Default folder in v1.1.0 isn’t created with useLargeBlocks = true

Enhancements:

• #4921: Syncthing should guard against running old versions with new config
• #5065: Add support for TLS1.3
• #5346: Systemd unit should declare after=multiuser.target
• #5560: Change "Introduced by" icon
• #5569: Outdated copyright notes in "About" dialog

Also:

• #1101: Syncthing has no easter eggs
• #5480: Better describe exposed volumes in our Docker image

Note: Version 1.0.1 is the last version with support for Windows XP

 

Syncthing v1.1.2 Released (May 7, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.1.2

https://forum.syncthing.net/t/syncthing-v1-1-2/13251
Bugfixes:

• #5332: Duplicate Files Names in Out of Sync List
• #5456: Folder marked as "Up to Date" with failed items
• #5578: Filesystem Watcher Error on v1.1.0
• #5624: Simple Syncthing invocations take a long time to run
• #5676: Systemd circular dependency prevents startup

Enhancements:

• #1223: Mention license in "About" dialog
• #5554: Unnecessary time precision in pendingFolder/pendingDevice config entries

Hotfix
Syncthing v1.1.3 Released (May 8, 2019)
Website / (GitHub)
Download

 

Syncthing v1.1.4 Released (June 4, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.1.4

https://forum.syncthing.net/t/syncthing-v1-1-4/13337
Bugfixes:

• #4613: Progress emitter doesn't start from config change if disabled at startup
• #5338: Version restore not possible with custom versioning path set
• #5421: WebGui: Locally Changed Items vanish when clicking 10|25|50
• #5578: Filesystem watcher error when watching disk root directory on Windows
• #5641: Syncthing gets stuck in a high CPU "Failed Files" state - Possibly a symlink issue?
• #5649: Checking block content on unexpected request results doesn't work for the last block
• #5654: Incorrect file info passed as argument to delete existing dir/symlink
• #5704: Failure to fsync() files should not be fatal

Enhancements:

• #1634: Use copy instead of rename for version folder on other file systems
• #4531: GUI folder/device status rows should handle longer values nicer
• #4586: Versioner file tagging is inconsistent
• #4631: In-GUI restoration should be possible from trashcan versioner
• #5419: File versioning across drives
• #5659: Old sync errors should not linger while retrying

Other issues

• #5505: Leaking goroutines through model and leveldb
• #5706: Spurious test failures on Windows

 

Syncthing v1.2.0 Released (July 9, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.2.0

https://forum.syncthing.net/t/syncthing-v1-2-0/13475
Important notes

• This release does not interoperate with Syncthing 0.14.45 or older.
• This release adds QUIC with NAT traversal as a new transport protocol. TCP
  is usually more performant and remains the preferred way of connection when
  possible.
• This release adds automatic crash reporting. See
  docs.syncthing.net/users/crashrep.html for details.
• This release makes large / variable block size the only available mode of
  operation; small / fixed blocks are deprecated. See
  docs.syncthing.net/advanced/folder-uselargeblocks.html for details.
• This release reverts the version naming change in #4586 (v1.1.4). Versions
  are now named with the time of their archiving, and the file modification
  time is unchanged when archiving. An exception to this is the "Trashcan"
  versioner which does not modify the name - instead it does set the file
  modification time the time of archiving.

Bugfixes

• #4170: panic: bug: ClusterConfig called on closed or nonexistent connection
• #5609: Filesystem watching failed when parent folder is not listable
• #5652: Connection error after closing failed items list and opening another list
• #5765: Verioner cleanup looks at the wrong time
• #5766: Support bundle doesn't include errors list, instead printing an error
• #5770: Scan failure blocks "Rescan" button
• #5777: Spurious need to "revert" nonexistent changes with Receive Only folder on Android
• #5780: Panic when folder disappears while scanning
• #5781: Shutdown takes too long, triggering fmut deadlock panic
• #5791: Puller complains about invalid filenames which are long gone

Enhancements:

• #959: Automatic error log sending to dev. team
• #3345: Show last connection error per discovered address
• #5377: Use of QUIC for transport
• #5631: Dockerfile ENTRYPOINT doesn't pass along extra arguments from "docker run"
• #5697: Handle fatal watch errors gracefully
• #5774: WebUI table column widths broken on narrow displays

Other issues

• #5760: Dead link in README.md
• #5796: TestPullInvalidIgnoredSR/SO is flaky

 

Syncthing v1.2.1 Released (August 6, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.2.1

https://forum.syncthing.net/t/syncthing-v1-2-1/13591
Bugfixes

• #5308: FreeBSD: Create new file does not generate a fs event.
• #5801: panic: close of nil channel in relay client stop
• #5803: Web UI shows confusing description on RC builds when upgrades are disabled
• #5828: panic: Index update for not running folder
• #5833: Paused folder shows filesystem watcher error
• #5837: panic: runtime error: index out of range in recheckFile
• #5849: Cannot concatenate external versioner template variables ("%FOLDER_PATH%/%FILE_PATH%")
• #5880: panic: runtime error: invalid memory address or nil pointer dereference in loadIgnoreFile

Enhancements:

• #5811: Download progress of folders in the UI should update more frequently

Other issues

• #5754: Support paging on jobQueue.Jobs
• #5813: Potential bugs on old cores: using 64-bit functions sync/atomic
• #5853: Inconsistent handling of empty folder path

 

Syncthing v1.2.2 Released (September 3, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.2.2

https://forum.syncthing.net/t/syncthing-v1-2-2-plus-relaysrv-discosrv/13716
Bugfixes

• #5824: Sync Protocol Listen Address in Actions behaves badly
• #5836: panic: chmod …: operation not permitted
• #5839: Prevent leaking log info into stack traces
• #5866: No indication in GUI that Syncthing has been shut down
• #5888: Adding/updating pending folders is inefficient
• #5908: panic: close of closed channel in lib/syncthing when shutting down
• #5920: Free space error message is unintelligeble
• #5934: Dialing regards any established connection as successful / does not check device ID

Enhancements:

• #5738: Avoid logging http: TLS handshake error ... remote error: tls: unknown certificate
• #5940: TLS: Support x25519, reconsider elliptic curve priority in handshake

Other issues

• #5115: Include systemd units in stdiscosrv/strelaysrv Debian packages
• #5901: TestPullInvalidIgnoredSR flakyness + data race

 

Syncthing v1.3.0 Released (October 1, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.3.0

https://forum.syncthing.net/t/syncthing-v1-3-0/13839
This release adds the “databaseTuning” config option to adjust parameters for the database size in use. The default is “auto” which automatically determines appropriate parameters. The other options are “small” (results in the parameters used previously, and used now for small databases) and “large” (results in the new parameters for large databases, regardless of the actual database size).
Bugfixes

• #5985: Log spam and high CPU use if #include path is wrong in .stignore

Enhancements:

• #5138: Rate limit can be very bursty
• #5948: Improve free space checking when syncing
• #5966: Database performance: improve situation with huge databases

Other issues

• #5924: Upgrade server JSON generator
• #5991: lib/api: TestHostCheck never finishes with Go 1.13rc2 under Docker
• #5999: Allow providing your own ldflags for building

 

Syncthing v1.3.1 Released (November 5, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.3.1

https://forum.syncthing.net/t/syncthing-v1-3-1/14026
Bugfixes

• #5993: Build information missing in discovery and relay server binaries
• #5995: Usage-reported transfer stats are meaningless
• #6008: Changed file in receive-only folder cannot be ignored
• #6040: Shows authentication warning when listening on UNIX socket
• #6049: Hostnames resolving to localhost are not considered ‘local’ in remote access warning

Enhancements:

• #5583: White tab in black Interface ?
• #5627: Stalled scans need better UI representation

Other issues

• #6010: STUN server stun·voxgratia·org should be removed

 

Syncthing v1.3.2 Released (December 3, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.3.2

https://forum.syncthing.net/t/syncthing-v1-3-2/14148
Bugfixes

• #5810: GUI theme not changing on WebKit-based/like browsers
• #5968: Folder "Up To Date" but has pending "Revert Local Changes"
• #5980: (De)select all not working in add device dialog
• #6027: Folder shows as "Syncing" when there is no data transfer
• #6043: Cannot exit after failed startup
• #6081: QUIC accept error loops too quickly, causing excessive log output
• #6090: Pull-scan loop due to symlink traversal
• #6093: cmd/stdiscosrv: Data race in replication
• #6136: API + UI device last seen is empty/Never
• #6160: Uses too much RAM when syncing large files (1.3.0+)

Enhancements:

• #6036: Generate HTTPS certificates accepted by iOS 13 / macOS Catalina
• #6056: Improve sharing tab when there are no devices to share with
• #6115: Change Web UI based on prefers-color-scheme

 

Syncthing v1.3.3 Released (January 7, 2019)
Website / (GitHub)
Download

Spoiler: Changes v1.3.3

https://forum.syncthing.net/t/syncthing-v1-3-3/14298
Bugfixes

• #6104: Windows: Syncthing log file filling up primary drive.
• #6133: Race condition in restarting folder
• #6139: Some sync errors get cleared despite them still being valid
• #6206: Soft limit for maxfiles is NOT increased to the hard one on macOS

Enhancements:

• #5887: Upgrade Button Does Not Have Confirmation Dialog
• #6057: “Nearby devices” links should look more like links (mouse pointer)
• #6190: Do not create .stignore if there are no ignore patterns

 

Syncthing v1.3.4 Released (February 4, 2020)
Website / (GitHub)
Download

Spoiler: Changes v1.3.4

https://forum.syncthing.net/t/syncthing-v1-3-4/14452
Bugfixes

• #4570: Negative percentage and data to sync
• #5867: Progress bar not visible
• #6044: Clicking “Save” in options says “You have unsaved changes” when changing automatic upgrade setting
• #6213: Tone down STUN logging a bit
• #6222: Connection Error on Listing More Locally Changed Files
• #6234: Docker image uses wrong path for default folder
• #6240: GUI: ignore patterns path is one row too low
• #6263: Panics due to database being closed

 

Syncthing v1.4.0 Released (March 17, 2020)
Website
Download / (GitHub)

Spoiler: Changes v1.4.0

https://forum.syncthing.net/t/syncthing-v1-4-0/14659
Important changes:

• A new config option maxConcurrentIncomingRequestKiB has been added to limit the maximum amount of request data being concurrently processed due to incoming requests. This limits Syncthing’s peak RAM usage when there are many connected devices all requesting file data. The default is 256 MiB.
  
  
• The config option maxConcurrentScans has been removed and replaced a new config option maxFolderConcurrency. In addition to just limiting concurrent scans it now also limits concurrent sync operations. The default is the number of available CPU threads (“GOMAXPROCS”).
  
  
• Syncthing now always runs the monitor process, which previously was disabled with -no-restart. This facilitates crash reporting and makes logging behave more consistently. The observed behavior with -no-restart should be the same as before but the internals differ.
  
  
• The database schema has been improved and will result in a migration plus compaction at first startup after the upgrade.

Bugfixes

• #4774: Doesn’t react to Ctrl-C when run in a subshell with -no-restart (Linux)
• #5952: panic: Should never get a deleted file as needed when we don’t have it
• #6281: Progress emitter uses 100% CPU
• #6300: lib/ignore: panic: runtime error: index out of range [0] with length 0
• #6304: Syncing issues, database missing sequence entries
• #6335: Crash or hard shutdown can case database inconsistency, out of sync

Enhancements

• #5786: Consider always running the monitor process
• #5898: Database performance: reduce duplication
• #5914: Limit folder concurrency to improve performance
• #6302: Avoid thundering herd issue by global request limiter

 

Syncthing v1.4.1 Released (April 7, 2020)
Website
Download / (GitHub)

Spoiler: Changes v1.4.1

https://forum.syncthing.net/t/syncthing-v1-4-1/14769
Bugfixes

• #6289: “general SOCKS server failure” since syncthing 1.3.3
• #6365: Connection errors not shown in GUI
• #6415: Loop in database migration “folder db index missing” after upgrade to v1.4.0
• #6422: “fatal error: runtime: out of memory” during database migration on QNAP NAS

Enhancements

• #5380: gui: Display folder/device name in modal
• #5979: UNIX socket permission bits
• #6384: Do auto upgrades early and synchronously on startup

Other issues

• #6249: Remove unnecessary RAM/CPU stats from GUI

 

Syncthing v1.4.2 Released (April 8, 2020)

Website
Download / (GitHub)

 

Syncthing v1.5.0 Released (May 5, 2020)
Website
Download / (GitHub)

Spoiler: Changes v1.5.0

https://forum.syncthing.net/t/syncthing-v1-5-0/14938
v1.5.0
This release changes the default location for the index database under some circumstances. Two new flags can also be used to affect the location of the configuration (-config) and database (-data) separately. The old -home flag is equivalent to setting both of these to the same directory. When no flags are given the following logic is used to determine the data location:

• If a database exists in the old default location, that location is still used. This means existing installations are not affected by this change.
• If $XDG_DATA_HOME is set, use $XDG_DATA_HOME/syncthing.
• If ~/.local/share/syncthing exists, use that location.
• Use the old default location.

This logic is used on non-Windows, non-Mac platforms only. On Windows and Mac the logic is unchanged.

Bugfixes

• #3808: gui: Number of days must be number flashes red then disappears
• #5809: stdiscosrv failed to load keypair without proper error message
• #6410: Wrong 30-days-interval in staggered versioning
• #6430: Incorrect out-of-sync/locally changed status indication on folders
• #6436: Revert Local Changes red button does not work correctly
• #6440: Doesn’t run monitor process when started with STNORESTART=1
• #6450: LDAP auth doesn’t handle LDAPS with certificate validation
• #6487 1: Scan problem within single unignored subdirectory prevents bidirectional sync

Enhancements

• #4924: Move index db to $XDG_DATA_HOME/syncthing/
• #5376 1: Improve LDAP authentication
• #6384 2: Do auto upgrades early and synchronously on startup
• #6416: Improve device status for “unused” devices
• #6432: Deleted file that existed locally only reported as locally changed
• #6437: Don’t start browser when restarting after upgrade

Other issues

• #6471 3: Windows exe isn’t properly version tagged

 

Syncthing v1.6.0 Released (June 2, 2020)
Website
Download / (GitHub)

Spoiler: Changes v1.6.0

https://forum.syncthing.net/t/syncthing-v1-6-0/15119
v1.6.0
This release performs a database schema migration, and adds the BlockPullOrder, DisableFsync and MaxConcurrentWrites folder options to the configuration schema.
The LocalChangeDetected event no longer has the action set to added for new files, instead showing modified for all local file changes.

Bugfixes

• #3876: Removing and re-adding a folder may cause data loss
• #5731: 100% CPU every minute on watch setup retry
• #6268: Out of sync panel layout overflows
• #6557: Folder error repeatedly set and unset
• #6559: Deadlock on folder unsubscribe
• #6576: Versioning params in config flip flop in order
• #6578: Allow rescan at folder state “Local Additions”
• #6583: Distributed deadlock on request
• #6604: Docker healthcheck fails when run in host network

Enhancements

• #5224: Accept new connections in place of old ones when appropriate
• #6530: Add “Pause All”/“Resume All” button for devices
• #6541 2: Limit number of concurrent writes while syncing

Other issues

• #6575: Incomprehensible error message: ‘directory is not empty; files within are probably ignored on connected devices only’
• #6584: A field in a structure is sometimes protected by Mutex, but sometimes unprotected.

Syncthing v1.6.1 Released (June 2, 2020)
Website
Download / (GitHub)

 

Syncthing v1.7.0 Released (July 7, 2020)

Website
Download / (GitHub)

Spoiler: Changes v1.7.0

https://forum.syncthing.net/t/syncthing-v1-7-0/15279
v1.7.0
Bugfixes:

• #6552: panic: Stop called more than once on ... created by nat.Service
• #6564: Closing an already removed connection causes GUI error message
• #6646: Misleading error message when to be deleted dir contains receive-only changes
• #6653: panic: nil pointer dereference in leveldb.(*DB).isClosed()
• #6654: panic: runtime error: index out of range in processNeeded()
• #6655: panic: nil pointer dereference in checkUpgrade()
• #6679: QUIC listener is not added when default TCP port is unavailable
• #6697: Malformed listen address causes hang on startup
• #6706: Changing a folder in web UI removes introduced-by info

Enhancements:

• #1830: "Folder path missing" when folder path is a junction
• #4703: Suggest setting up auth on initial startup
• #5910: Add Badger database backend for testing and consideration
• #6372: Reduce database size by optimizing version list storage

Other issues:

• #6608: Data race in Windows fs watcher tests
• #6625: TestRequestRemoteRenameChanged is racy/flaky

 

Is anyone using this as a Dropbox replacement on Windows 10?
See: https://tonsky.me/blog/syncthing/

If so, care to share your experiences?

 

Syncthing v1.7.1 Released (July 14, 2020)
Website
Download / (GitHub)

 

Syncthing v1.8.0 Released (August 11, 2020)
Website
Download / (GitHub)

Spoiler: Changes v1.8.0

https://forum.syncthing.net/t/syncthing-v1-8-0/15463
v1.8.0
This release:

• adds the experimental copyRangeMethod config on folders, for use on filesystems with copy-on-write support. Please see https://docs.syncthing.net/advanced/folder-copyrangemethod.html 1 for details.
• adds TCP hole punching, used to establish high performance TCP connections in certain NAT scenarios where only relay or QUIC connections could be used previously.
• adds a configuration to file versioning for how often to run cleanup. This defaults to once an hour, but is configurable from very frequently to never.

Bugfixes

• #5425: Allow editing ignore patterns texterea in GUI’s folder dialog even when #include fails
• #6733: strelaysrv can’t propely unmarshall a response when joining a pool
• #6784: Remote device completion 100% while it is actually syncing
• #6816: fatal error: concurrent map read and map write
• #6823: Syncthing 1.7.0 performs UPnP with NAT traversal disabled
• #6825: “pull: no such file” for existing untouched files

Enhancements

• #4259 1: Attempt TCP hole punching
• #4271: Make use of filesystems that can handle copies efficiently.
• #6075: Feature: API check sync status of folder[s]
• #6313: Improving disk access control in folders with file versioning
• #6565: Create versioning directory recursively (creating parents as necessary)
• #6795: Don’t warn encountering an invalid path separator for deleted items
• #6807: “File Pull Order” should be disabled (greyed out) for “Send Only” folders in the GUI
• #6832: Support running syncthing Docker image as non-root user

 

Syncthing v1.9.0 Released (September 9, 2020)
Website
Download / (GitHub)

Spoiler: Changes v1.9.0

https://forum.syncthing.net/t/syncthing-v1-9-0/15579
v1.9.0
This release adds the advanced folder option caseSensitiveFS (https://docs.syncthing.net/advanced/folder-caseSensitiveFS.html 2) to disable the new safe handling of case insensitive filesystems.

Bugfixes

• #1787 1: Case-only renames break stuff
• #5708: Properly handle upper-/lowercase-only file name collisions
• #6613: TestWatchRename test fails on FreeBSD.
• #6793: Error status should take precedence over Local Additions
• #6850: Global state incorrect when ignoring local change
• #6864: Folder incorrectly marked “Up to Date” after switching from “Receive Only” to “Send & Receive”
• #6867: Certificate error when built with Go 1.15
• #6886: chmod permission after editing .stignore via WebUI not preserved
• #6889: test failures with Go 1.15
• #6892: Syncthing 1.8.0 trying to connect via wrong network route
• #6898: tests in TestCopyRange fail on ppc64le with “inappropriate ioctl for device”
• #6908: NAT service fails to terminate during Shutdown
• #6910: Local Additions when deleting file after changing folder type from SR to RO
• #6922: Auto accepted folders not saved
• #6938: Modifying config during first scan corrupts folder state

Enhancements

• #2739 2: Syncthing should be case insensitive by default
• #5579 1: Avoid anti-aliasing artifacts for svg device icons
• #6873: Don’t fail dirs in receive-only folders that were removed elsewhere but exist locally

 

Syncthing v1.10.0 Released (October 6, 2020)
Website
Download / (GitHub)

Spoiler: Changes v1.10.0

https://forum.syncthing.net/t/syncthing-v1-10-0/15700
v1.10.0
This release adds the config option announceLANAddresses to enable
(the default) or disable announcing private (RFC1918) LAN IP addresses
to global discovery.

Bugfixes:

• #6880: fatal error: concurrent map iteration and map write
• #6917: Reconsider db check on upgrade
• #6930: Can't add new folder with versioning enabled, Cleanup Interval field lacks default value
• #6940: TypeError: Object doesn't support property or method 'startsWith' in IE 11 / Windows 7
• #6943: Missing strings for translation
• #6961: Accounting issue with receive-only deleted files causing spurious 95% completion for remote devices
• #6968: Very slow scans on Windows in 1.9.0
• #6972: Deleting a folder containing a symlink results in a permanently out of sync on windows
• #6973: given name "syncthingxxx.tmp" differs from name in filesystem "syncthingXXX.tmp"

Enhancements:

• #4277: Announce internal and external address to the global discovery service, encrypted
• #6734: Consider moving configuration to a proto contract
• #6928: Announce LAN addresses to global discovery

Other issues:

• #5436: MultiArch for Docker