Red5 Documentation

Red5 Pro Release Notes 14.2.0

May 16, 2025

New Features

Improvements

  • Notifications via metadata when an unsupported codec is detected
  • h.265 to h.264 transcoding audio sync
  • Improved performance of h.265 transcoding
  • KLV data defined in the PMT table using registration descriptor is recognized
  • Stream Manager 2.0 CPU and Memory based scaling improvements
  • Stream Manager 2.0 Failed Node limit parameterized and raised
  • Stream Manager 2.0 improved logging
  • Stream Manager 2.0 Kafka timeouts parameterized and improved
  • Stream Manager 2.0 Terraform and Kafka threading improvements
  • Stream Manager 2.0 destroys faulted nodes automatically

Bug Fixes

  • Updated SDP to ensure recordings have proper resolution
  • Websocket memory leak in some scenarios
  • Opus transcoder could push CPU to 100% in some scenarios
  • ABR transcoding leaks memory in some scenarios
  • Reconnecting to Transcoder with WHIP could fail if the encoder sends a DELETE message without the nodeGroup id
  • Stream Manager 2.0 subgroup routing fixed
  • Stream Manager 2.0 capacity limits could be exceeded by one connection
  • Stream Manager 2.0 could not delete a mixer event if the mixer node was already removed
  • Stream Manager 2.0 could mark nodes as faulted if rapid reconnects occurred

Known Issues

  • iOS >=18.4.1 flv recordings may not play back properly