[winswitch] [ANNOUNCE] Xpra 3.0.11: many issues, one critical

[Antoine Martin]

Hi,

This update to the LTS branch contains a subset of the fixes that were
included yesterday as part of the 4.0.2 release.

The only real critical issue is the same server crash in the scrolling
detection code.

Updating is recommended.

Cheers,
Antoine

PS: the MS Windows Python2 builds are currently missing some features
because of a bug in the packaging tools.


Release notes:
* fix encryption option overzealously enforced on all socket types
* fix network layer compression errors that cause connections to drop
* fix printing errors with some shell character encodings
* fix NVENC h264 stream compatibility with HTML5 client
* fix windows not getting focused when clicking on title bar (HTML5)
* fix suspend / resume errors with tray windows
* fix Python2 / GTK2 compatibility regression from 3.0.10
* fix tray geometry errors
* fix minimum video scaling not being honoured via heuristics
* fix clipboard data sometimes going missing when ownership changes
* fix error in main thread verifier (fortunately, never fired)
* fix python-pillow packaging conflicts on CentOS / RHEL 7
* fix memory contents of the swscale pixel format object
* fix csc_swscale converter getting recycled every time
* fix division by zero errors during window cleanup
* fix detection of named-pipe creation errors
* fix MS Windows shadow server errors with 'bind=auto'
* fix MS Windows servers slow to handle connections with mDNS enabled
* fix sshfp support on MacOS (was missing dns python module)
* fix MacOS errors with some subcommands (ie: 'list')
* fix notification widget wrongly stealing input focus
* fix support for building with CUDA 11.0
* fix unshrinkable session-info window
* fix window resizing errors when non-GUI clients are also connected
* avoid ever using b-frames for text content
* silence unhelpful gtk warnings on MacOS
* avoid opengl warning with wayland
* discard invalid clipboard requests early
* workaround for older versions of python-cryptography
* use 'text' mode for 'geany' (fixes lossy screen updates)
* ensure all toolbox windows set a correct and readable window title
* convert invalid map events to warnings (no scary crash reports)
* also update mdns records when the session name changes
* make it possible to specify path used for saving video streams/frames