[winswitch] [ANNOUNCE] xpra 0.15.3 (minor fixes)

[Antoine Martin]

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Hi,

This update fixes a fair number of minor issues, none of which are
really critical, but updating is recommended nonetheless.

There is also one "new" feature, which is unusual for a stable update,
that's because the feature is both very unlikely to interfere with
anything (10 lines of code) and very useful for running in containers.
You can now connect to a socket directly by name, ie:
xpra attach socket:/path/to/hostname-$DISPLAY


0.15.3 release notes:
* fix invalid X11 atom
* fix unhandled failure code from libav
* fix default socket permissions when config file is missing
* fix error handling for missing cuda kernels
* fix OpenGL paint early errors
* fix "print" control command with multiple clients
* skip sending invalid packet to client for the "name" control command
* more helpful dpi warning
* support connecting to named unix domain sockets
* OpenGL option can force enable despite platform checks
* replace unsafe deprecated API call in HTML5 client
* more reliable and clean shutdown of connections and threads
* log internal system failures as errors

The source:
https://xpra.org/src/
Binaries/repositories:
https://winswitch.org/downloads/
Direct binary downloads:
https://xpra.org/dists/
Beta:
https://xpra.org/beta/

Cheers
Antoine
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