github nats-io/nats-server v2.14.7-RC.1
Release v2.14.7-RC.1

pre-release5 hours ago

Changelog

Refer to the 2.14 Upgrade Guide for backwards compatibility notes with 2.12.x. Please note that the 2.13.x version was skipped.

Go Version

Dependencies

  • github.com/antithesishq/antithesis-sdk-go v0.8.0-default-no-op (#8562)
  • github.com/klauspost/compress v1.20.0 (#8562)
  • golang.org/x/crypto v0.56.0 (#8562)

Added

JetStream

  • Compatibility for the new desired state metalayer, introduced in v2.15, to support safe upgrades and downgrades (#8554)

Improved

General

  • The fastrand and math/rand packages have been replaced with math/rand/v2 (#8538, #8557)
  • Reduced lock contention that could arise from tracking event IDs or closed connections (#8533)

JetStream

  • When syncing deletes from a snapshot, block removals are now aggregated, reducing pending calculations (#8545)
  • Message size checks are now performed before more expensive header checks (#8561)
  • Pending calculations are now considerably faster when the max messages per subject limit is 1 (#8567)

Fixed

General

  • The {{left}} and {{right}} mapping functions now work correctly in account mappings and source/mirror transforms (#8568)

JetStream

  • A potential underflow when calculating deletes in skip messages has been fixed (#8546)
  • Fixed an issue where catchup signals to the metalayer are blocked, which could stall stream or cluster management operations until the node is restarted (#8555)
  • Consumer removal is now handled correctly after a recreate during metalayer recovery at startup (#8556)
  • Fixed a potential panic that could happen when filestore block caches were released during message removal (#8548)
  • The last dedupe message ID is now restored correctly if the last message was outside of the window after restart (#8564)
  • An unreachable send snapshot condition has been removed from the stream monitor (#8565)
  • Pull request expiry is now counted as activity when inactive_threshold is set (#8575)
  • Purges and roll-ups on multi-filter subject consumers will no longer advance past unrelated subjects (#8572)
  • Filestore compression header checking is now extended to check for compatible compression values and for the presence of correct or incorrect first record checksums, avoiding collisions at the beginning of a message block (#8581)
  • JetStream usage from peer-removed nodes is now removed from the remaining cluster node accounting correctly (#8570)

Complete Changes

v2.14.6...v2.14.7-RC.1

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