# Syncthing v2.1.4-rc.2

- Product: Syncthing (https://whatsnew.fyi/product/syncthing)
- Vendor: Syncthing
- Date: 2026-08-24
- Version: v2.1.4-rc.2
- Original notes: https://github.com/syncthing/syncthing/releases/tag/v2.1.4-rc.2
- Permalink: https://whatsnew.fyi/product/syncthing/releases/v2.1.4-rc.2
- Labels: Pre-release

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Devices and folders can now be grouped in the GUI by setting the new group attribute
- **added** — HTTP and HTTPS proxies with support for CONNECT can now be used, in addition to the existing support for SOCKS proxies via the all_proxy environment variable
- **added** — Block indexing can be turned off for folders to optimise for reduced database size and overhead via the blockIndexing attribute on folder configuration
- **added** — GUI login session duration can be configured to be longer or shorter than the default one week, or set to infinitely long, and the cookie path can be adjusted via sessionCookieDurationS and sessionCookiePath attributes in GUI configuration
- **fixed** — Correctly handle receive-only changed directories
- **fixed** — Correctly return metrics and support bundle via API
- **fixed** — Open GUI when relaunched instead of printing error
- **changed** — Set User-Agent on all outgoing HTTP requests

##### 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:2.1.4-rc.2` or `ghcr.io/syncthing/syncthing:2.1.4-rc.2`
  (`{docker,ghcr}.io/syncthing/syncthing:2` to follow just the major version)

##### What's Changed
###### Fixes
* fix(model): correctly handle receive-only changed directories (fixes #8004) by @calmh in https://github.com/syncthing/syncthing/pull/10843
* fix(api): correctly return metrics, support bundle (fixes #10847) by @calmh in https://github.com/syncthing/syncthing/pull/10849
* fix: open GUI when relaunched instead of printing error (fixes #10727) by @calmh in https://github.com/syncthing/syncthing/pull/10852
###### Other
* chore: style fixes from `go fix` by @calmh in https://github.com/syncthing/syncthing/pull/10846
* build: use Go 1.27, minimum version is Go 1.26 by @calmh in https://github.com/syncthing/syncthing/pull/10864
* build(deps): update dependencies by @calmh in https://github.com/syncthing/syncthing/pull/10865
* chore: set User-Agent on all outgoing HTTP requests by @calmh in https://github.com/syncthing/syncthing/pull/10867

**Full Changelog**: https://github.com/syncthing/syncthing/compare/v2.1.3...v2.1.4-rc.2