NATS
v2.12.11Networking & Messaging2026年6月9日
NATS v2.12.11 is a single-fix patch release targeting a JetStream regression in v2.12.7 that caused stale subject state tracking and 'Message Not Found' errors on streams with per-subject message limits.
breakingUpgrade if you use max-messages-per-subject on any stream
If you run NATS 2.12.7–2.12.10 and have streams configured with MaxMsgsPerSubject (max_msgs_per_subject), you are exposed to silent stale-state bugs that surface as 'Message Not Found' errors. These errors can cause consumers to miss messages or behave unpredictably. Upgrade to 2.12.11 immediately. If you are already on 2.14.x, you are not affected and no action is needed.
主な変更 (4)
- Fixed JetStream regression (introduced v2.12.7): stale subject state tracking caused 'Message Not Found' errors when max-messages-per-subject is configured
- Go runtime updated to 1.25.11
- v2.14.x is unaffected by this regression — only 2.12.7 through 2.12.10 users need to act
- No other changes in this release