• Platforms, build and packaging:
  • syntax compatibility fix, and another one
  • openssl.cnf location in MS Windows builds
  • force rebuild of dummy driver RPMs
  • Fedora can build html documentation again
  • always build the latest dummy DEB
  • MS Windows multi-page printing
  • run CI builds with Python 3.6 and 3.12, this requires Ubuntu 20.04
  • remove outdated numpy workaround
  • libyuv 0.1878
  • nasm 2.16.03
  • cython 3.0.11
  • aioquic 1.2.0
  • pynvml 12.555.43
  • pycuda 2024.1.2
  • pycuda RPMs to link against the system boost library, but not on RHEL 8
  • build fix for ffmpeg v7 decoder and csc module
  • build CUDA kernels with clang++ instead of gcc >= 14
  • don't ship any Qt components in this branch
  • skip xauth setup on MS Windows servers
• Major:
  • system tray docking causing server crashes + fixup
  • MS Windows PDF printing crash, library mismatch
  • honour ssh option when re-connecting
  • missing http headers caused html5 client caching
  • mDNS browser handling for binary text records from zeroconf
  • sync-xvfb: always free images with an error context
  • better compatibility with all builds of python cryptography
  • uninitialized pixels when resizing windows
  • window border offset with non-opengl renderer
  • client errors out with window forwarding disabled, remove more assumptions
  • xshape client errors with desktop scaling
  • xshape windows should still honour the window border
  • expose all clipboard targets
  • clipboard INCR transfers get stuck
  • scroll paint corruption
  • connection drops when downscaling
  • authentication aborted due to encryption not detected
  • always set a default initial resolution
  • honour the initial resolution, even if resizing is disabled
  • failure to add new virtual monitors
  • http directory listing + handler errors
  • avoid Directory listing forbidden error
• Encodings:
  • mmap race condition
  • validate openh264 colorspace
  • test used potentially invalid colorspace
  • avoid slow modules and slow encoders
  • reduce how often quality swings cause scaling changes
  • stick to the same video scaling value longer
  • sub-optimal non-scroll areas
  • prettier sampling filter when downscaling
  • nvenc causing decoding errors
  • workaround nvenc padded frames: openh264 decoder and ffmpeg decoder
• Keyboard:
  • keyboard-sync switch not honoured and not sent
  • ignore MS Windows keyboard layouts without a valid X11 layout name
  • try harder to identify the key event string
  • don't show duplicate keyboard layout names
  • try harder to find a matching key by name try lowercase if needed, use default modifiers if that's all we've got
• Minor:
  • remove enum prefix with older Python versions
  • ssl path checks
  • RFB connections cannot be upgraded to http or ws
  • make it possible to skip NM api
  • expose QUIC sockets via mDNS
  • only enable gtk error context with x11 Gdk backend
  • handle empty ibus daemon command
  • handle invalid dbus-launch command
  • system tray setup failures with non-composited screens, ie: 8-bit displays
  • map missing modifiers using defaults
    ...

• Platforms, build and packaging:
  • pyopengl build fix for Fedora 41 + force rebuild
  • build pycuda against the system boost library if possible
  • avoid dnf v5
• Major:
  • system tray docking causing server crashes + fixup
  • system tray not updated
  • client errors out with window forwarding disabled, remove more assumptions
  • OpenGL probe results were being ignored
  • shape client errors with desktop scaling
  • xshape windows should still honour the window border
  • pointer positions with desktop scaling: initial position and some window events
  • pointer overlay position when scaling
  • clipboard INCR transfers get stuck
  • keyboard-sync switch not honoured and not sent
  • connection drops when downscaling
  • server-side window state not updated
  • detection of display state for all types of servers
• Minor:
  • dev-env subcommand fails on Debian
  • always set a default initial resolution
  • system tray setup failures with non-composited screens, ie: 8-bit displays
  • system tray paint failures with mmap
  • map missing modifiers using defaults
  • don't setup ssh agent dispatch when ssh is disabled
• Encodings:
  • sub-optimal non-scroll areas
  • prettier sampling filter when downscaling
  • NVidia driver version check never fails
• OpenGL:
  • window scaling corruption
  • desktop scaling miscalculations and corruption
  • scroll encoding corruption
• Cosmetic:
  • faster CI
  • confusing display message
  • don't populate av-sync menu if the feature is disabled
  • correct type hint
  • skip scary warning without compression
  • log full backtraces with X11 context errors

• Platforms, build and packaging:
  • RHEL 8.10 pygobject3 packaging update
  • always build the latest X11 dummy driver version
  • only build xpra from the 6.1.x branch
  • pycuda 2024.1.2
  • MS Windows multi-page printing
  • MS Windows console detection
  • remove outdated numpy workaround
• Encodings:
  • fix scroll encoding
  • rgb colors are always full range
  • Pillow encoder quality is lower, normalize it
• OpenGL:
  • greenish tint with subsampled webp screen updates
  • uninitialized pixels when resizing windows
  • visual corruption with pointer overlay
• Major:
  • missing context manager when X11 session started from a Wayland desktop
  • keyboard support should not require dbus
  • validate application's opaque-region property
  • window border offset with non-opengl renderer
  • client fails without window forwarding
• Minor:
  • try to handle homeless user accounts more gracefully
  • try harder to find a matching key by name, use default modifiers if that's all we've got
  • only send menus to clients that request them
  • handle empty ibus daemon command
  • handle invalid dbus-launch command
  • broken download links
• Network:
  • expose quic / webtransport sockets via mdns
  • gss authentication module parsing error
  • better compatibility with all builds of python cryptography
  • read ssh subcommand's stderr
• Cosmetic / preventive:
  • missing debug paint color for 'avif'
  • AT-SPI warnings
  • slow CI test times out, ignore failures
  • CI only test oldest and newest python versions
  • don't run sonarqube on this branch
  • tag correct branch in build github workflow
  • only import modules actually needed: notifications, windows, logger, mmap
  • desktop-scaling=no parsing warnings
  • window headerbar widget sizes
  • incorrect exception debug message
  • unused invalid headers
  • outdated comment
  • debug logging shows function
  • fake client module correctness
  • debug logging of stack frames
  • try to prevent ATK warnings
  • log opengl probe command

• Platforms, build and packaging:
  • RHEL 10 builds
  • make it easier to setup a development environment and to install the repositories
• Encodings:
  • faster scaling of subsampled images without OpenGL
  • zero-copy drawing without OpenGL
  • scale YUV before converting to RGB
  • full range video compression
  • GPU checks from a containerized environment
  • colorspace fixes
• Network:
  • WebTransport server
  • QUIC fast-open
• Features:
  • handle display scaling correctly on more platforms
  • use native file chooser on some platforms
  • support custom window grouping
  • optional username verification for authentication modules
  • resize virtual display to a specific resolution only
  • filter environment exposed to xvfb subcommand
• Cosmetic:
  • many type hints added
  • linter warnings fixed

• 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

• Platforms, build and packaging:
  • revision number not detected in RPM spec file
  • add security warning about downstream packages
  • new unavoidable clang build warning on MacOS
  • missing QUIC transport in MS Windows builds
  • unnecessary DEB dependency on unused python3-yaml
  • fix PEP 517 builds
  • MS Windows setup script typo
  • openssl.cnf had gone missing on MS Windows
• OpenGL:
  • OpenGL acceleration self-test failures on MS Windows when executed from GUI tools
  • blacklist the llvmpipe software renderer but probe server opengl properties anyway
  • PyOpenGL imported early, causing numpy initialization errors
  • PyOpenGL build error with numpy on Fedora 40
  • PyOpenGL ctypes patch for Python 3.12 and later, don't recommend numpy
  • PyOpenGL builds for Python 3.13
• Major:
  • MacOS pixbuf crash on launch
  • connection failures when server is still initializing
  • honour ssh option when re-connecting
  • MS Windows PDF printing crash, library mismatch
  • missing http headers caused html5 client caching
  • server built --without-http does not start
• Encodings:
  • mmap race condition
  • full self-tests for jpeg decoder
  • Pillow 10 supports faster memoryview buffers
  • avoid webp colorspace issue with Pillow
  • bump openh264 bitstream level
  • validate openh264 colorspace
  • openh264 decoder self test
  • openh264 encoder should set the frame number
  • X264 warning intra-refresh is not compatible with open-gop
  • test used potentially invalid colorspace
• Minor:
  • allow printing with more socket authenication modules
  • map Visual Studio Code to text (partial fix)
  • isolate failures to show or hide a window
  • only reparent windows if needed but always send ConfigureNotify
  • rendering of some toolbox test applications
  • prefer IPv4 for localhost
  • remove enum prefix with older Python versions
  • http directory listing
  • look for the SSL certificate file specified
  • RFB connection errors trying to upgrade to http or WebSockets
• Cosmetic / correctness:
  • log ssl error just once per socket
  • don't spam the logs because of a pyxdg bug
  • missing documentation pages
  • OpenSSH documentation misplaced
  • we do have tests
  • correct type for clipboard default arguments
  • decode pam authentication failure message and error
  • syntax error in set_source_version script
  • log init thread failure details
  • no need to clear X11 damage of unmanaged windows
  • match function signature
  • avoid warning when running the tray test application
  • avoid warnings in the launcher
  • hex strings
  • don't show the full Pyton version in http server string
  • authentication modules check passwords as strings
  • Gtk X11 context checker error messages invalid format
  • warn about paramiko being unmaintained
  • authentication module documentation updates
  • AES modes documentation

• Encodings:
  • video encoding errors causing missed screen updates
  • drop alpha if requested and for video encoders
  • konsole is a text application
  • smarter auto refresh encoding selection
  • X264 warning intra-refresh is not compatible with open-gop
  • openh264 decoder self test
  • Pillow 10 supports memoryview buffers
• Platforms, build and packaging:
  • arm64 and riscv builds can timeout adding build info, and generating the documentation
  • saner source information defaults
  • more simple / reliable OpenGL pixel format attributes on MacOS
  • MS Windows usernames should also be using strings
  • Cython compilation warnings
  • CI: build test with Python 3.6 and 3.12
  • missing explicit cairo dependency
  • RPM revision number missing
• Major:
  • handle downscaled video correctly without OpenGL
  • Gtk crashes on exit
  • OpenGL check failures on X11
  • OpenGL check failures on MS Windows when executed from GUI tools
  • sync-xvfb not honoured
  • replace dead ssh agent symlinks
  • validate http request hostname before sending it back
  • guess content type from commands
  • ssh channel pollution
  • incorrect client exit code with Python 3.10 and earlier, don't convert enums to strings, correct matching type hints
  • libyuv converter cannot scale YUV444P
  • ffmpeg decoder can accept images with dimensions rounded down to a multiple of 2, same for swscale
  • audio source plugins not found
  • client startup failures caused by dbus
  • updated run_scaled script
  • use the dynamic speed and quality assigned for video encoders
  • proxy compression broken
• Minor:
  • fix parsing of scaling values as percentages
  • fix ssl unit test, use SSL specific error codes
  • case-insensitive window role matching
  • splash screen communication errors due to unexpected characters
  • splash screen can exit cleanly
  • standlone bug report tool cannot exit cleanly
  • never try to start a display in proxy or shadow modes
  • do verify that the display is available in monitor mode
  • prevent audio DoS in the future
  • help video decodes with colorspace metadata
  • handle decoding of full-range YUV
  • sync-xvfb requires cairo
  • blacklist llvmpipe software OpenGL renderer but probe server opengl properties anyway
  • allow printing with more socket authentication modules
  • map Visual Studio Code to text
  • isolate failures to show or hide a window
  • bump openh264 bitstream level
  • only reparent windows if needed but always send ConfigureNotify
  • full self-tests for jpeg decoder
  • openh264 encoder should set the frame number
• Cosmetic:
  • don't spam the logs because of a pyxdg bug
  • clearer audio error message
  • clearer ssh error message
  • use a consistent shebang
  • file upload deprecation warnings
  • fail fast when testing decoders with junk data
  • documentation dead link
  • make version checks more robust
  • skip warning about missing amf gstreamer elements
  • docstring: server configuration file applies to all servers
  • remove X11 keyword from desktop files
  • potential future issues: variable name shadowing, memoryview handling, strict type
  • unused statements
  • linter warning and consistency, [consistent return value](65f8e5d1ba9e5100e2531...

• Platforms, build and packaging:
  • avoid timeout on slow build platforms, when running pandoc, raise the timeout on arm and riscv
  • tell dpkg to remove or upgrade xpra-codecs before xpra-codecs-extra + fixup, + fixup
  • minimal installations missing dependency and unable to paint without OpenGL
  • version script needs to update pyproject.toml, do it
  • MS Windows client fails to start without explorer.exe running
• Major:
  • DoS with audio pipeline starting repeatedly
  • GStreamer video disabled to avoid crashes
  • OpenGL check failures on X11
  • OpenGL paint errors drawing the spinners, don't check for glBegin and glEnd
  • OpenGL check: re-use environment filtering
  • Wayland UTF8 clipboard byte strings, same for MS Windows
  • scale during render if needed
  • smarter auto refresh encoding selection
  • xpra configure features not reloading correctly
  • audio not enabled for some clients, source plugins not found
  • xi2 bindings failed to load
  • client startup failures caused by dbus
  • use the dynamic speed and quality assigned for video encoders
  • really avoid scaling text, but don't discard the option
  • proxy compression broken
• Cosmetic / correctness:
  • openh264 decoder size warnings
  • sync-xvfb requires cairo
  • help video decoders with colorspace metadata, but don't use full range h264 yet
  • don't initialize UI twice when connecting from launcher
  • add quic connections to launcher
  • warnings when dropping packets during shutdown
  • system tray icon filename should be a string
  • discord link had expired, again
  • clearer ssh error message
  • parsing of scaling values as percentages
  • also bump __version_info__ automatically and the RPM spec file
  • use a consistent shebang
  • file upload deprecation warnings
  • handle missing PIL more gracefully
  • wrong time unit shown in error message
  • add asbtract socket link to documentation
  • ensure OpenGL zerocopy flag is a boolean
  • explicit return statement
  • incorrect debug logging
  • warn users about deprecated syntax
  • pass strict type check, ie: bandwidth-limit is a number
  • codec self tests
  • Gtk version tool should not require pango or cairo

Full Changelog: v6.0...v6.0.1

• Platforms, build and packaging:
  • build packages for multiple python targets
  • require and take advantage of Python 3.10+
  • cythonize everything and build test on git push
  • workaround for distributions incompatible with CUDA
  • add xpra-client-gnome package
  • use the system provided xxHash library
  • riscv64 builds
  • PEP 517: pyproject.toml
• Features:
  • OpenGL core profile
  • xpra configure tool
  • faster mmap
  • make it easier to disable almost everything, audio or video
  • remove legacy compatibility
  • try harder to locate the correct xauth file
  • honour MacOS backing scale factor with OpenGL
  • workspace support for MS Windows 10
  • readonly memoryviews
• Network:
  • abstract sockets
  • wait for local server sockets to become available
  • enable websocket upgrades without the html5 client
  • update ssh agent to active user
  • use libnm to access network information
  • ssl auto upgrade
  • honour /etc/ssh/ssh_config
  • xpra list-clients
• Cosmetic:
  • silence warnings: #4023, #2177, #3988, #4028
  • easier call tracing
  • PEP 8: code style
• Documentation:
  • ivshmem
  • subsystems
  • authentication handlers
  • record some SBOM data

• Platforms, build and packaging:
  • MS Windows 'Light' builds
  • compatibility with multiple "Windows Kits" locations
  • typo in MacOS bundle file
  • force include all brotli dylibs in MacOS builds
  • missing 'bcrypt' module
  • spng encoder build switch not honoured
  • Cython 3.0.9
  • aioquic 1.0.0
  • include pynvml in MS Windows full builds
  • force include zeroconf in MS Windows builds
  • MS Windows builds not waiting for input to close
  • MS Windows tools fail to run due to incomplete environment and errors
  • build info cannot be parsed
  • debug builds on MS Windows
• Major:
  • missing X11 clipboard events
  • OpenGL cleanup from correct context
  • nvfbc module loading errors
  • ensure NV12 streams can be decoded properly
  • client chooses the fastest colorspace conversion option
  • use libyuv to convert video to rgb when rendering without OpenGL
  • xpra top hanging on start
  • network manager unexpected datatype
  • disable ssl auto upgrades
  • freedesktop portal / remotedesktop should not use X11
  • password authentication issues with MS Windows and MacOS client: dialog hangs, client terminates
  • mmap compatibility fix for older clients
  • mmap client token errors should not be fatal
  • proxy draw passthrough stripping of unused alpha channels
  • named pipe connections error
  • MS Windows system tray initial icon may be lost
  • xpra top client failures recording backtraces
  • never wait for input in a subprocess or in splash process
• Minor and cosmetic bugs:
  • shadow server about dialog
  • proxy instances signal handlers not firing
  • log the prompt with u2f handler
  • handle missing stderr more gracefully
  • handle missing timeout value more gracefully
  • socket setup error handler logging incorrect, now extra safe
  • socket authentication errors with malformed socket options
  • avoid encryption errors during authentication
  • support arguments with xpra encoding subcommand
  • more tolerant option parsing
  • avoid sending a warning notification for missing server log
  • avoid showing warnings for options from newer versions
  • missing information from net_util tool
  • only warn once per window when no video options are found, same for csc and when there are no options to choose from
  • update discord link
  • more detailed connection error messages
  • point to the pyxdg bug information when theme parsing fails
  • typo shown in display information
  • libvpx decoder use correct (unused) pixel format constant
  • ignore dimensions rounded up in openh264 decoder
  • some tests can take long on a slow CI run