NATS - v2.3.0

Changelog

Go Version

• 1.16.5: Both release executables and Docker images are built with this Go release.

Added

• JetStream:
  • Richer API errors. JetStream errors now contain an ErrCode that uniquely describes the error. Thanks to @jon-whit and others for the suggestion (#2168, #2255, #2266)
  • Ability to send more advanced Stream purge requests (#2296, #2297, #2303, #2306)
  • Stream can now be configured with a per-subject message limit (#2284)
  • Encryption at rest (#2302)
• Monitoring:
  • JetStream information into statsz (#2269, #2276)
• OCSP support (#2240, #2263, #2277)

Changed

• CPU and memory usage report on macOS (removed dependency on ps) (#2260)
• Throttle the number of maximum subscriptions exceeded log statements per account, to 1 every 2 seconds (#2304)

Improved

• JetStream:
  • Setting initial pending and selecting starting sequence number of streams with multiple subjects (#2284)
  • Filestore memory usage (#2306)

Fixed

• Gateways:
  • Handling of subject rewrites for subjects to a globally routed subject (#2275)
  • Message headers were lost (passed in the message payload) from a response across a Gateway and through a route (#2278)
• JetStream:
  • Better support for multiple domains where the hub is JetStream enabled but the hub account is not, and the Leafnode is (#2261)
  • Orphaned consumers on sourced or mirrored streams keep trying to create new ones (#2279)
  • CPU spikes in some catch-up situations (#2280)
  • Dynamic account limits would be applied based on single server limits (#2281)
  • Error description missing in some requests (#2293, #2294, #2295)
• LeafNode:
  • Hanging connection when account can't be found (#2267, #2288)
  • Configuration reload could fail even if there were no changes to the Leafnode configuration (#2274)
  • Service export interest was not propagated correctly (#2288)
• MQTT:
  • Panic when subjects cross accounts with import/export. Thanks to @mullerch for the report (#2268)
• Websocket:
  • Compression/Decompression issues with continuation frames. Thanks to @luan007 for the report (#2300)
• Clients disconnected on configuration reload when only $SYS account is configured (#2301)
• Failed route TLS handshake would leave the failed connection's lock in a locked state (#2305)

Complete Changes

https://github.com/nats-io/nats-server/compare/v2.2.6...v2.3.0