v3.1.8

• major:
  • better compatibility with python2 servers
  • missed clipboard synchronization events
  • try to cleanup OpenGL context more correctly
  • content type guess mismatch due to types
  • crashes on clipboard backend cleanup
  • bug report hangs when closing
  • missing cairo dependency for non-OpenGL renderer
  • honour ssh switch when re-connecting
  • MS Windows pdfium compatibility
  • preserve the same interpreter with systemd-run wrapping
  • ignore keyboard layouts without a valid X11 name
  • mDNS sessions not grouped in mdns sessions gui tool
• build and packaging:
  • CentOS 7 uses a vendored name for lsb_release
  • CentOS 7 build fix
  • libvpx 1.14.1, libwebp 1.4.0
  • Cython 3.x warnings, exception value warnings
  • Debian build scripts need wget for the outdated python packages workarounds
  • missing crypto libraries in MacOS builds
  • build CUDA kernels with clang instead of gcc 14+
  • bundle openssh.cnf with MS Windows builds
• encodings:
  • ensure NV12 encoded streams are decoded the same as YUV420P
  • ignore alpha channel when requested
  • tolerate video dimensions rounded down to nearest multiple of 2
  • smarter auto refresh encoding selection
  • include color range metadata in h264 stream
  • handle full range colorspace conversion
  • mmap overwrite race condition
• minor and cosmetic fixes:
  • connection errors with RFB mode and http socket upgrades
  • support scaling specifed as a percentage
  • shadow servers: missing attributes should raise a AttributeError
  • vpx: set the correct (unused) pixel format constant
  • unused import, typos
  • build modifications attribute is a number
  • case insensitive window role matching
  • konsole is a text application
  • missing constant
  • downgrade unavoidable Wayland keyboard warning
  • stricter default and return types
  • decode usernames on MS Windows
  • don't enable sync-xvfb without cairo
  • we have a test suite
  • warn that paramiko is unmaintained