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Qpid ProtonJ2 1.0.0-M5 Release Notes

Proton is a high-performance, lightweight messaging library. More about Qpid Proton.

For more information about this release, including download links and documentation, see the release overview.

New features and improvements

  • PROTON-2499 - Reduce overhead of Stream Sender message operations
  • PROTON-2505 - Improve stream sender reconnect detection for in-progress message streams

Bugs fixed

  • PROTON-2490 - SASL to AMQP handoff is unsuccessful in server contexts (e.g. for peer-to-peer)
  • PROTON-2504 - Message Properties type is not properly filtering for valid CorrelationId types
  • PROTON-2507 - AMQP Test Peer can select the wrong handle for attach response
  • PROTON-2510 - Client Transaction recovery can fail if detach response is delayed
  • PROTON-2513 - Connection and Client CloseAsync are not yet operating asynchronously
  • PROTON-2524 - protonj2 stream receiver does not always expand the credit window correctly


  • PROTON-2486 - Update Netty dependencies to latest release
  • PROTON-2496 - Update slf4j to latest 1.7 release series
  • PROTON-2515 - Update test dependencies to latest releases