v4.3.3

• major bugs:
  • X11 server crashes with quickly disappearing odd sized video windows: 53e7406
  • MS Windows clients mishandling some window hints (ie: Firefox): #3533
  • connection errors when non-user-interactive clients are connected: 21265da
  • bencode network error with cuda data: 2c5b88e
  • workaround VAAPI server crashes: ad64880
  • socket leak when failing to wrap as ssl: d1b0050
  • potential race conditions with xpra info requests: 1ab2bc5
  • missing notifications due to icon parsing errors: #3366
  • workaround broken svg data format generated by Inkscape: 5f21e3c
  • more correct solution for unicode clipboard data (MS Windows clients): 64280ca, 0c195d1 + ba56b1a
  • video capability workaround for legacy packet encoders (ie: older clients): 077b3d5
  • MacOS DMG missing code signature: e72718d
• screen updates:
  • fix jpeg with alpha painting with opengl backend: 515b07d
  • png screen updates refreshed unnecessarily: 98f3eef
  • don't use an rgb format with an empty alpha channel: a038833
  • ensure video screen updates are only flushed when complete: e512d5c
  • avoid errors handling grayscale png images with transparency: 1d4b31f
  • handle grayscale with spng encoder: fdee128
  • missing transparency with webp encoder: 382412c
  • paint errors in non-opengl backend: c97baac
  • never delay screen updates unless we have a video region: 16b9617
  • invalid image metadata with jpeg decoder and csc_cython output: 6b40f4c
• cosmetic:
  • during shutdown, ignore errors trying to set nodelay / cork: 35ec622
  • codec loader output was ignoring standard log output format: 1d5e049
  • adjust docstring and debug logging messages, typos etc: 7235282, 5225e4b, 0994f06, 665348f, cfc705a
  • show disabled menu entries in MacOS menus: ee92daf
  • log current keyboard layout whenever mapping changes: cf2f819
  • avoid warnings triggered by Pillow v9: 1e62ccb
  • error messages shown when the systray menu is not yet ready: 3ddca80
  • more understandable error message when ssh fails to connect: 1346866
  • always log the full backtrace for client connection errors: e0b8cff
  • errors when changing encoding from the client's systray menu: 44c8120
• minor:
  • make it possible to run the client without some cython extensions: 767db9d
  • make socket querying code more resilient: 1f96179, 044f0c8
  • restore ability to disable smooth scrolling: 9e0286b
  • carefully access subprocess file descriptors: cc0ab96
  • map ffplay to video application type: 88139ce, unityhub as browser type (dc987e2)
  • incomplete socket dirs validation: 0f4cd80
  • jpeg and nvjpeg encoders could go missing with unusual settings: 688f7bb
  • Xorg dummy patch refresh: fc68a54
  • CUDA builds with GCC 12: 97a75e2, silence unavoidable warnings: ce29637
  • small X11 memory leak: e110f08
  • make it possible to increase the ping timeout delay: ff6dfd1
  • avoid strict warning when sorting windows (xpra list-windows): d214585
  • window mapping 'event' markers should not be stored as client properties: cbd1893
  • use strings for all client properties: 1b428f8