nats-io/nats-server v2.12.9-RC.1

Release v2.12.9-RC.1

on GitHub

Changelog

Refer to the 2.12 Upgrade Guide for backwards compatibility notes with 2.11.x.

Go Version

• 1.25.10 (#8107)

Dependencies

• github.com/klauspost/compress v1.18.6 (#8124)
• golang.org/x/crypto v0.51.0 (#8124)
• golang.org/x/sys v0.44.0 (#8124)

Added

General

• New metrics in_client_msgs, in_client_bytes, out_client_msgs and out_client_bytes are now available via the /varz monitoring endpoint for tracking data to/from normal clients only (#7851)

Improved

General

• Client TLS certificates without subject DNs but with DNS subject alternate names are now permitted (#8100)

Fixed

General

• Fixed a deadlock that could occur when processing cluster info hit Raft lock contention (#8080)
• A number of sublists that incorrectly ignored the disable_sublist_cache option have been fixed (#8081)
• Cluster route compression now obeys the cluster max_pings_out option if configured (#8093)
• The internal send loop no longer mutates caller headers, which could corrupt buffers (#8097)
• Removing headers no longer fails to remove later headers if the matching prefix also appeared in an earlier header value (#8103)
• The sublist now correctly maintains negative results in the cache when calculating number of interested subjects (#8119)
• Server shutdown requests are now idempotent, preventing concurrency issues when shutting down in embedded contexts (#8163)
• TLS listeners now work correctly with the PROXY protocol where enabled (#8130)
• Reduced lock contention that could be created between leafnodes and clients (#8139, #8159)

JetStream

• Atomic batch now sends an unsupported advisory on API level mismatch (#8082)
• A bug which corrupted message schedule subjects on recovery has been fixed (#8085)
• Reduced lock contention on node leader changes and Raft group creation (#8087)
• Fixed a protocol error that could be caused by double-encoding of $JS.ACK reply subjects over routes or gateways (#8089)
  – Fixed a panic that could occur when decoding a truncated Raft append entry from the wire (#8092)
• Atomic batch no longer double-pools committed entries on cleanup (#8098)
• Raft nodes will now ignore temporary snapshots on recovery after a crash (#8101)
• A number of paths that could leave consumer redelivered in a drifted state have been fixed, e.g. with workqueue or interest-based streams with max_deliver, on single message removal or after purges/compactions (#8102)
• Caches are now cleared correctly when converting filestore encryption mode, avoiding block-level corruption (#8105, #8166)
• Fixed a race condition when updating the deduplication map on leader change (#8106)
• Source consumer creation will no longer schedule a recreation if a setup is already in progress, avoiding potential setup storms (#8111)
• Fixed data races when reading from the stream configuration when checking reservations, answering some API requests amongst others (#8115)
• Stream republish subjects are now validated correctly (#8127)
• The delivery policy for consumers on clustered workqueue streams is now enforced correctly (#8126)
• Raft node append entry caches are now invalidated correctly on WAL truncation and snapshot installs (#8149)
• Skip message errors are now surfaced correctly, propagating failures (#8152)
• Mirror consumers are now retried immediately on a last sequence mismatch, avoiding stalling for longer than necessary (#8152)
• Raft nodes will no longer allow proposals to remove unknown peers (#8154)
• Pending state no longer leaks when reaching max deliveries (#8156)
• A panic when reusing a wait group when resetting a stream's clustered state has been fixed (#8158)

MQTT

• Invalid characters in subjects are now rejected correctly, avoiding protocol issues when forwarded to other connection types (#8104, #8112)

Complete Changes

v2.12.8...v2.12.9-RC.1