v2.12.11

janhq/janv2.12.11Jun 9, 2026by github-actions[bot]

AI Summary

A maintenance release updating the Go version to 1.25.11 and fixing a JetStream regression that caused stale subject state tracking and 'Message Not Found' errors when specific message limits were configured.

Key Highlights

Updated Go version to 1.25.11.
Fixed JetStream regression causing stale subject state tracking.

Full Release Notes

## Changelog

Refer to the [2.12 Upgrade Guide](https://docs.nats.io/release-notes/whats_new/whats_new_212) for backwards compatibility notes with 2.11.x.

### Go Version

- 1.25.11

### Fixed

JetStream

- Fixed a regression introduced in v2.12.7 which could result in stale subject state tracking which could manifest in "Message Not Found" errors when a max messages per subject limit is configured (#8285)
  - Please note that v2.14.x versions are not affected

### Complete Changes
 
https://github.com/nats-io/nats-server/compare/v2.12.10...v2.12.11