Wowza Streaming Engine 4.8.9 Release Notes

Version: Wowza Streaming Engine™ 4.8.9 build 20201221171606 released on January 12, 2021.

Note: Wowza Streaming Engine 4.8.9 is an updater-only release. For the latest Wowza Streaming Engine installer, see Wowza Streaming Engine 4.8.8.01 Release Notes.

Java support: Wowza Streaming Engine 4.8.9 is built on Java 9 (OpenJDK Java SE JRE 9.0.4), but can be used with Java versions 9-12. For more information, see Manually install and troubleshoot Java on Wowza Streaming Engine.

Note:  For step-by-step instructions on how to update your Wowza Streaming Engine media server software, see Update your Wowza Streaming Engine installation.

Contents


New features and functionality in Wowza Streaming Engine 4.8.9
Update considerations for Wowza Streaming Engine 4.8.9
Detailed list of changes in Wowza Streaming Engine 4.8.9
Known issues with Wowza Streaming Engine 4.8.9
Patch updates to Wowza Streaming Engine 4.8.9

New features and functionality in Wowza Streaming Engine 4.8.9


Wowza Streaming Engine is a robust, customizable, and scalable media server software that powers reliable streaming of high-quality video and audio to any device, anywhere. Wowza Streaming Engine 4.8.9 contains a variety fixes that help to improve the functionality of the media server software.

We've also introduced a new property to change the audio language of streams with MPEG-DASH stream targets for Akamai destinations. For more information about this new property, see the following article:

Update considerations for Wowza Streaming Engine 4.8.9


Wowza Streaming Engine 4.8.5 and later installs a custom packaged version of OpenJDK Java SE JRE 9.0.4 that includes the java.scripting module. This module is required for Wowza Streaming Engine 4.8.8.01 and later but is not added by the Wowza Streaming Engine 4.8.9 updater. If you are updating to Wowza Streaming Engine 4.8.9 from Wowza Streaming Engine 4.8.0 or earlier, before you update, you need to install a supported version of Java that contains the java.scripting module, such as Java 9-12 or the custom version of OpenJDK Java SE JRE 9.0.4 installed with Wowza Streaming Engine 4.8.5 and later (available from the Downloads tab of My Account). Then instruct Wowza Streaming Engine to use that version of Java according to the instructions in Manually install and troubleshoot Java on Wowza Streaming Engine.

Detailed list of changes in Wowza Streaming Engine 4.8.9


Changes since Wowza Streaming Engine 4.8.8.01

 
  • Added a new property for configuring the audio language for streams with MPEG-DASH stream targets (location: [install-dir]/conf/[application-name]/Application.xml, <Application>/<Properties>; name: pushPublishMPEGDashAudioLanguage; type: String; default: eng).
  • Fixed an issue with WebVTT captions not working for HLS VOD streams using SecureToken.
  • Fixed an issue with SecureToken validation not working for HLS streams with AC3 or EC3 audio.
  • Fixed a Null Pointer Exception when encountering a URL that does not exist with HLS MediaCaster streams.
  • Fixed a Concurrent Modification Exception with MediaCaster stream validation.
  • Fixed an issue with removing contents of an nDVR store if a stream does not send onMetadata codec information.
  • Fixed an issue with invalid HLS requests hanging instead of returning a 404 error.
  • Fixed an issue with a deadlock sometimes occurring when attempting to close SRT push publishing sessions.
  • Fixed an issue with SRT push publishing in which streams could be delayed by up to one second.
  • Fixed an issue with RTSP playback when publishing with GStreamer.
  • Fixed an issue with the server attempting to acquire invalid ports.
  • Added support for SNI extensions to the SSL/TLS handshake for all SSL/TLS requests when acting as a client.
  • Fixed an issue with RTMPS delivery to YouTube stream targets failing with Java versions later than Java 9.

Known issues with Wowza Streaming Engine 4.8.9


For a detailed list of known issues that are still in effect, see Known issues with Wowza Streaming Engine.

Patch updates to Wowza Streaming Engine 4.8.9


Between production releases, Wowza occasionally provides patches to fix bugs or regressions in the latest production release, which can be deployed in production environments and workflows for long-term stability.

There is no available patch release for Wowza Streaming Engine 4.8.9 at this time.