[winswitch] [ANNOUNCE] Xpra LTS+1 v5.1

[Antoine Martin]

Hi,

As the new "+1" update from the v5.x LTS branch, v5.2 was meant to 
incorporate useful new features backported from the 6.x series.
Unfortunately, the code structure in v6.x has changed so much that most 
of the features originally scheduled for inclusion were too difficult 
and risky to apply:
https://github.com/Xpra-org/xpra/issues/3954
Perhaps, this can be attempted again for v5.2 if specific features are 
needed.
Apart from the self-contained "keycloak" authentication module, most 
other changes are regular bug fixes, as normally expected.

There are no critical fixes in this release. For more details, please see:
https://github.com/Xpra-org/xpra/releases/tag/v5.1

Downloads:
https://github.com/Xpra-org/xpra/wiki/Download
(the macOS arm64 builds are stuck and may take a while to land)

Cheers,
Antoine