• critical bugs:
  • crashes during printer enumeration on MS Windows
  • crashes when starting audio forwarding via the command line
  • disable crashy ffmpeg codecs with 32-bit builds
  • rencode DoS (MacOS and MS Windows binary builds)
  • missing key events
• server stalls:
  • don't load menu data from the main thread
  • don't query the list of printers from the main thread
• build, packaging and platform fixes:
  • Python 3.10 support
  • default to using CUDA 11.4
  • don't try to build NVENC against newer glibc headers (CUDA bug)
  • support NVidia Ampere cards natively
  • compatibility with experimental version of ffmpeg (GBRP9LE)
  • more reliable git branch detection
  • Linux distribution detection bug with Python 3 versions
  • remove unnecessary runtime dependency on distutils
  • clipboard support with python2 servers started from a Wayland environment
  • corrupted cursors on MS Windows
  • make it possible to bundle webcam support on MS Windows (still disabled by default)
  • updated GStreamer dependencies
  • the Debian package name we have to recommend is 'dnspython'
  • generic / common RPM packages should not depend on Python 3
  • use the correct /etc/default path for service configuration
  • MacOS updates for GTK3 3.24.30: patches, dependencies
  • MacOS packaging of the latest Python pillow with webp support
  • add missing C++ files to source snapshots
  • fixup some compatibility issues in previous backports
  • clean generated Cython files (some pyd filenames have changed)
  • use the versioned python interpreter for sourcing files (fix error on CentOS 8)
  • locate libfakeXinerama more reliably (at build time)
  • missing vpx support on CentOS 7.x
  • libwebp 1.2.1
  • pynvml 11.470.66
  • patched rencode - override the buggy version from EPEL
  • arm64 build and packaging tweaks
• network:
  • handle mmap client setup errors correctly
  • mmap unix group lookup API
  • support improved packet encoders
  • use the correct exit code for encryption problems
  • http script errors
  • session 'name' server control command error
  • use cryptographically secure random values with AES
  • prevent DoS using unreasonably large number of key stretching iterations
  • menu errors when there are active VNC connections
  • stricter validation of raw packet indexes
  • better compatibility with packet encoders (start menu, clipboard)
  • reply with 404 if we don't find any data to send
  • correctly parse ssh remote command output
  • MacOS and MS Windows shadow servers missing the default TCP socket (port 14500)
• authentication:
  • stricter validation of challenge digest
  • honour the socket-dirs option in authentication modules
  • fallback to the current user if the one specified is invalid
• encodings:
  • correctly paint OpenGL scaled jpeg YUV screen updates
  • error in 'void' paint handler (normally unused)
  • sha1 data integrity checksum values
  • re-enable non-fatal ffmpeg logging outside suppressed code blocks
  • vpx encoder uninitialized variable undefined behaviour
  • restrict the number of NVENC errors tagged as transient
  • don't use AV sync for 'text', 'desktop' and 'picture' content types
• window geometry:
  • errors with StackMode requests
  • size hints not being honoured in some rare cases
• misc fixes:
  • notifications should not override the exit code
  • stop processing info requests when the server is exiting
  • increase the maximum size of Xdummy resolutions (uses more memory)
  • retry if we fail to load the list of windows the first time (seamless servers)
  • missing notifications when failing to load the icon
  • fix default values shown with 'xpra --help'
  • try harder to exit the server cleanly (kill xvfb and dbus later)
  • honour the force-replace-wm flag when upgrading
  • some modifiers may not have matching key names (ie: VNC clients)
  • don't expose xdg desktop entries that don't have a command to run
  • smooth scrolling with GTK3 clients
  • documentation, debugging, logging tweaks and fixes
  • u2f tool error
  • prefer https for links to the xpra.org website
  • fix saving icons with gi bindings (Python 3)
  • make it easier to run in a prefixed installation
  • cursor regression with Python 2 builds
• proxy fixes:
  • preserve audio packets chunking (avoids an HTML5 client bug)
  • avoid potential race conditions with video encoder re-framing
  • try harder to find a usable session directory to use
• audio fixes:
  • ensure we always stop the 'new-stream' notification process
  • remove aac codec flag causing compatibility errors
  • fix sink test tool command line usage
• 'top' client:
  • server errors when 'top' clients are connected
  • handle unicode window names correctly
  • threading fixes (screen corruption)
  • latency shown as always zero
• html5:
  • less strict content security policy
  • ensure the 'set-initial-position' attribute is initialized
  • avoid sending window attributes set to 'None'
  • fix lz4 with AES incompatibility
  • log the reason when closing
  • don't start a new session again when re-connecting
  • don't try to re-connect when the server is shutting down
  • re-connected session would lose its connection quickly
  • keyboard layout mapping from browser language
  • window snapping to the edge, wrong offset
  • avoid triggering server side errors on OR windows