v2.12.11
feder-cr/invisible_dotsv2.12.11Jun 9, 2026by github-actions[bot]
Upgrading?
Release notes summary
NATS Server v2.12.11 fixes a regression in JetStream that caused stale subject state tracking and 'Message Not Found' errors when max messages per subject limits were configured.
Key Highlights
- Fixed a regression in JetStream causing stale subject state tracking
- Fixed Message Not Found errors with max messages per subject limit
- Go version updated to 1.25.11
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
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