[winswitch] [ANNOUNCE] Xpra 6.3.1

[Antoine Martin]

Hi,

This update to the stable branch contains a mix of fixes: some are 
recent regressions from the 6.3 release, and others are much older bugs 
that were not reported until recently.
The `pam` and MS Windows packaging issues were significant as they were 
causing authentication failures, but there is no urgency to update if 
you were not affected.
The encoding `full-range` colorspace issues did not affect GPU 
accelerated setups, but should have been caught sooner nonetheless.

For the full list of changes, see the v6.3 release notes:
https://github.com/Xpra-org/xpra/releases/tag/v6.3.1
The download links and installation instructions can be found here:
https://github.com/Xpra-org/xpra/wiki/Download

Cheers,
Antoine