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Changelog

Overview

This PR adds a PushConsumer implementation to jetstream, allowing easier migration to new API while maintaining usage of push consumers. For now it only supports the callback-based Consume(), more consuming options will be added in future releases.

ADDED

  • Core NATS:
  • UserCredentialBytes() Conn option (#1877)
  • JetStream:
  • PushConsumer implementation in jetstream package
  • Expose ClientTrace in JetStreamOptions (#1886)
  • Service API:
  • Expose WithEndpointPendingLimits option (#1899)
  • Legacy KeyValue:
  • Error() method to KeyLister and KeyWatcher interfaces (#1889)

FIXED

  • Core NATS:
  • Fix timeoutWriter not recovering after first error (#1896)
  • JetStream:
  • Consumer.Next() hangs after connection is closed (#1883)
  • Fixed stream info request for strict mode (#1887)
  • Ordered consumer not closing on connection close (#1885)
  • Return a more appropriate error when Subject Transform is not supported (#1416)
  • Fix subject transform comparison. Thanks @erikmansson for the contribution (#1907)
  • Legacy JetStream:
  • Use timeout from JetStreamContext if no deadline is set on ctx (#1909)
  • KeyValue:
  • Keys() and ListKeys() returning duplicates (#1884)
  • Fix subject prefix for the Create/Update operation in KV store. Thanks @SalvaChiLlo for the contribution (#1903)

CHANGED

  • Change DefaultSubPendingMsgsLimit (#998)

Complete Changes

https://github.com/nats-io/nats.go/compare/v1.43.0...v1.44.0

Source: README.md, updated 2025-07-29