February 14, 2025

New Features

• ERTMP v2 — supporting additional codecs over RTMP, this enhances RTMP and provides backwards compatibility with RTMP.
• h.265 (HEVC) Support:
  • h.265 is not supported by default in browsers and is hidden behind browser configuration flags.
  • Windows: Requires the HEVC Video Extension from the Microsoft Store.
  • Mobile Devices: Requires hardware h.265 encoding and/or decoding support.
  • Linux: Requires hardware h.265 encoding and/or decoding support.
  • Chrome: Using Windows version with these startup flags and the Red5 Pro Testbed with codec selection: chrome --enable-features=PlatformHEVCEncoderSupport,WebRtcAllowH265Receive,WebRtcAllowH265Send --force-fieldtrials=WebRTC-Video-H26xPacketBuffer/Enabled
  • Safari: Use developer options to enable h.265 and the Red5 Pro Testbed with codec selection

Improvements

• Update to JDK21 from JDK11
  • If you have created a custom plugin for Red5 Pro, you may need to update it to support JDK21.
  • A tool is available that can help with this: Detecting Compatibility Issues with JDK21
• Update Tomcat to 11 from Tomcat 8.5
  • If you have a custom webapp running in Tomcat under Red5 Pro, you may need to update it to support Tomcat 11.
  • A guide is available to help with this: Migrating to Tomcat 11
  • A tool is available that can help with this: Tomcat Migration Tool
• Windows SRT Support
  • You may need the Visual C++ Redistributable

Deprecations/Removals

• RTMPE — RTMPE is no longer supported, please use RTMPS instead.