The release notes for AirServer for Surface Hub:

Version 2020.9.18

What's new:

  • Added support for the upcoming Windows 10 Team Edition update.

Resolved issues:

  • Fixed Google Cast discovery with certain Android phones.
  • Fixed some videos only playing audio when streaming YouTube over AirPlay.
  • Fixed video playback restarting when interrupted by ads while streaming YouTube over AirPlay.

Version 2.8.1 (09/07/2020)

What's new:

  • Added background audio playback.
  • Improved mirroring resolution when in side-by-side mode with other applications.

Resolved issues:

  • Fixed Google Cast discovery.
  • Fixed protocol compatibility with Oculus update 18.

Other enhancements:

  • AirPlay mirroring TCP port changed from 5000 to 7000 to improve compatibility with common network setups.

Version 2.6.6 (30/01/2020)

What's new:

  • Added support for non-DRM video playback from Apple TV iOS app.

Resolved issues:

  • Fixed Google Cast discovery issues

Version 2.6.0-2.6.5

  • AirServer settings are now stored in the cloud and are automatically retrieved upon re-launch. 
  • Added keyboard, mouse, and touch back-channel support for Miracast, across multiple connections. 
  • AirServer no longer conflicts with the Miracast background service if the built-in hotspot is disabled. 
  • Improved YouTube video playback over AirPlay.