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syncthing

v2.1.1 Feature

This release adds 4 notable features for engineering teams evaluating rollout.

Published 1d File Storage & Sync
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

go p2p peer-to-peer synchronization

Summary

AI summary

Updates Major changes in 2.1, Other, and syncthing across a mixed release.

Changes in this release

Feature Medium

Devices and folders can now be grouped in the GUI using the new `group` attribute.

Devices and folders can now be grouped in the GUI using the new `group` attribute.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Feature Medium

HTTP and HTTPS proxies with CONNECT support can now be used alongside SOCKS proxies via `all_proxy` environment variable.

HTTP and HTTPS proxies with CONNECT support can now be used alongside SOCKS proxies via `all_proxy` environment variable.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Feature Medium

Block indexing can be disabled for folders to reduce database size and overhead via the `blockIndexing` attribute.

Block indexing can be disabled for folders to reduce database size and overhead via the `blockIndexing` attribute.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Feature Medium

GUI login session duration and cookie path are now configurable via `sessionCookieDurationS` and `sessionCookiePath` attributes.

GUI login session duration and cookie path are now configurable via `sessionCookieDurationS` and `sessionCookiePath` attributes.

Source: llm_adapter@2026-06-02

Confidence: high

 —
Dependency Low

Updated x/net dependency for govulncheck (build(deps): x/net for govulncheck).

Updated x/net dependency for govulncheck (build(deps): x/net for govulncheck).

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Properly upgrade Syncthing via REST when the service is running (fixes #10697).

Properly upgrade Syncthing via REST when the service is running (fixes #10697).

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Ensure user read/write/execute permissions on archived directories during versioning (fixes #10532).

Ensure user read/write/execute permissions on archived directories during versioning (fixes #10532).

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Announce TCP punching wildcard only when listening on a wildcard address (fixes #10503).

Announce TCP punching wildcard only when listening on a wildcard address (fixes #10503).

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Close source loader responses on errors in stcrashreceiver (PR #10704).

Close source loader responses on errors in stcrashreceiver (PR #10704).

Source: llm_adapter@2026-06-02

Confidence: high

 —
Bugfix Medium

Handle zero‑size requests in the protocol layer (fixes #10709).

Handle zero‑size requests in the protocol layer (fixes #10709).

Source: llm_adapter@2026-06-02

Confidence: high

 —
Full changelog

Major changes in 2.1

  • Devices and folders can now be grouped in the GUI by setting the new
    group attribute.

  • HTTP and HTTPS proxies with support for CONNECT can now be used, in
    addition to the existing support for SOCKS proxies (the environment
    variable all_proxy=https://...).

  • Block indexing can be turned off for folders where it's more desirable to
    optimise for reduced database size and overhead than minimal transfer
    size (the blockIndexing attribute on folder configuration).

  • GUI login session duration can be configured to be longer or shorter than
    the default one week, or set to infinitely long. The cookie path can also
    be adjusted. (The sessionCookieDurationS and sessionCookiePath
    attributes in the GUI configuration.)

This release is also available as:

  • APT repository: https://apt.syncthing.net/

  • Docker image: docker.io/syncthing/syncthing:2.1.1 or ghcr.io/syncthing/syncthing:2.1.1
    ({docker,ghcr}.io/syncthing/syncthing:2 to follow just the major version)

What's Changed

Fixes

  • fix(syncthing): properly upgrade via REST when Syncthing is running (fixes #10697) by @calmh in https://github.com/syncthing/syncthing/pull/10699
  • fix(versioner): ensure user read/write/execute on archived dirs (fixes #10532) by @calmh in https://github.com/syncthing/syncthing/pull/10696
  • fix(discover): only announce wildcard for TCP punching when listening on wildcard address (fixes #10503) by @calmh in https://github.com/syncthing/syncthing/pull/10691
  • fix(stcrashreceiver): close source loader responses on errors by @mattn in https://github.com/syncthing/syncthing/pull/10704
  • fix(protocol): handle zero-size requests (fixes #10709) by @calmh in https://github.com/syncthing/syncthing/pull/10710

Other

  • build: be explicit about workflow permissions by @calmh in https://github.com/syncthing/syncthing/pull/10690
  • chore(syncthing): include runtime context in GC crashes by @calmh in https://github.com/syncthing/syncthing/pull/10702
  • build(deps): x/net for govulncheck by @calmh in https://github.com/syncthing/syncthing/pull/10703
  • chore: use path/filepath for local file system paths by @mattn in https://github.com/syncthing/syncthing/pull/10705

New Contributors

  • @mattn made their first contribution in https://github.com/syncthing/syncthing/pull/10704

Full Changelog: https://github.com/syncthing/syncthing/compare/v2.1.0...v2.1.1

View diff on GitHub

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Open Source Continuous File Synchronization

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