# PipeWire 1.0.3 (2024-02-02)

This is a quick bugfix release that is API and ABI compatible with previous
1.0.x releases.

## Highlights
  - Fix ALSA version check. This should allow the alsa plugin to work again.
  - Some small fixes and improvements.

## PipeWire
  - Escape @DEFAULT_SINK@ in the conf files.

## Modules
  - Improve logging in module-pipe-tunnel.

## SPA
  - Always recheck rate matching in ALSA when moving drivers. This fixes a
    potential issue where the adaptive resampler would not be activated in
    some cases.

## ALSA
  - Fix version check. This should allow the alsa plugin to work again
    with version 1.0.2.

Older versions:


# PipeWire 1.0.2 (2024-01-31)

This is a bugfix release that is API and ABI compatible with previous
1.0.x releases.

## Highlights
  - Fix v4l2 enumeration with filter. This should fix negotiation in some
    GStreamer pipelines with capsfilter. Also probe for EXPBUF support
    before using it.
  - Fix max-latency property and Buffer param when dealing with small
    ALSA device buffers. This should fix stuttering with some AMD
    based soundcards.
  - More small cleanups an improvements.

## Modules
  - Improve netjack2 channel positions.
  - Improve RAOP module state after suspend/resume. (#3778)
  - Avoid crash in some LV2 plugins by configuring the Atom ports. (#3815)

## SPA
  - Bump libcamera requirements to 0.2.0.
  - Try to avoid unaligned load exceptions. (#3790)
  - Fix v4l2 enumeration with filter. (#1793)
  - Fix max-latency property and Buffer param when dealing with small
    ALSA device buffers. This should fix stuttering with some AMD
    based soundcards. (#3744,#3622)
  - Add a resync.ms option to node.driver to make it possible to resync
    fast to clock jumps.
  - Probe for EXPBUF support in v4l2 before using it. (#3821)

## pulse-server
  - Also emit change events when the port list change.

## Bluetooth
  - Log a more verbose explanation when other soundservers seem to be
    interfering with bluetooth.
  - Add quirks for Rockbox Brick. (#3786)
  - Add quirks for SoundCore mini2. (#2927)

## JACK
  - Improve check for the running state of clients. (#3794)

# PipeWire 1.0.1 (2024-01-11)

This is a bugfix release that is API and ABI compatible with previous
1.0.x releases.

## Highlights
  - Work around the buggy ALSA backend in libcanberra by forcing the pulse
    backend in module-x11-bell.
  - Fix a race in the device info updates in pulse-server.
  - Fix timing and rate matching in ALSA sequencer.
  - Improve timing information in JACK and from the ALSA driver.
  - More small fixes and improvements.


## PipeWire
  - Fix a build issue when examples where disabled.
  - Avoid some compiler warnings.
  - Avoid some bitfield data races. (#3706)

## Modules
  - Bump the PTP driver priority. (#3217)
  - Support the previous "allowed" permission in the access module.
  - Fix filename leak in module-filter-chain.
  - Work around the buggy ALSA backend in libcanberra by forcing the pulse
    backend in module-x11-bell. (#3688)
  - Fix a race in the device info updates in pulse-server.
  - Fix compatibility in RAOP. (#3698)

## SPA
  - Handle ALSA picth control errors correctly
  - Clamp buffer-frames correctly. (#3000)
  - Fix timing and rate matching in ALSA sequencer. (#3657)
  - Revert a commit that could result in current time in the future in the
    timing updates.
  - Improve adapter state checks.
  - Remove the timer from the ALSA pcm.
  - Fix timeout in freewheel driver.

## Pulse-server
  - Also handle active ports for monitor sources.
  - Fix zeroconf-publish format properties.

## JACK
  - Improve timing and transport calculations.
  - Handle -ENOENT from the core and don't error out.

## GStreamer
  - Handle node port removal in the device provider. (#3708)
  - Improve error handling while connecting.
  - Fix dts_offset.

# PipeWire 1.0.0 (2023-11-26)

The PipeWire project is immensely proud to announce the 1.0 release
of PipeWire.

It is API and ABI compatible with previous 0.3.x releases.

 "PipeWire represents the next evolution of audio handling for Linux, taking
 the best of both pro-audio (JACK) and desktop audio servers (PulseAudio) and
 linking them into a single, seamless, powerful new system."
    - Paul Davis, JACK and Ardour author

 "What exciting times! PipeWire 1.0 is the culmination of 15 years of
 Linux audio expertise, blending lessons from PulseAudio into a high-performance,
 flexible, and user-friendly foundation for audio and multimedia on Linux.
 I'm looking forward to the next decade of progress in the free software
 consumer and professional audio space!."
    - Arun Raghavan, PulseAudio developer/maintainer.

 "I'm thrilled to witness the first stable release of PipeWire after five years
 of collaboration with its remarkable community, pushing the boundaries of
 multimedia integration in the Linux ecosystem one step further.”
    - George Kiagiadakis, WirePlumber author

 "From the beginning of the libcamera project, we have always seen
 PipeWire as the solution to handle desktop and mobile integration and
 give a seemless multimedia integration to users while providing security
 features and resource sharing between applications."
    - Kieran Bingham, libcamera author

Happy Holidays!


## Highlights
  - Fix a memfd/dmabuf leak when uploading buffers while shutting down.
  - Handle concurrent jack_port_get_buffer() calls because ardour seems to
    be doing this.
  - Improve time reporting (less jitter) in ALSA when using IRQ.
  - Many doc improvements.

## PipeWire
  - Respect PIPEWIRE_DLCLOSE everywhere, remove pw_in_valgrind().
  - Remove a warning when a client tries to change ignored properties.

## Modules
  - Fix a memfd/dmabuf leak when uploading buffers while shutting down.
  - Fix a potential segfault when copying mix structures. (#3658)
  - Avoid races in setrlimit in module-rt.
  - Fix a memory leak in filter-chain.
  - Set rtp.ptime on senders, not receivers.
  - The ROC modules were ported to ROC 0.3

## SPA
  - Improve time reporting (less jitter) in ALSA when using IRQ. (#3657)
  - Add latency param query in libcamera.
  - Fix some compiler warnings.
  - The EVL plugin was updated.

## Bluetooth
  - LC3 codec and compatibility improvements.

## Pulse server
  - Fix emission of events when a sink/source state changes. (#3660)

## JACK
  - Improve transport and time handling. Use unique ids to make consistent
    snapshots of the current time and transport.
  - Avoid enumerating port params that we are not going to use.
  - Optimize buffer reuse.
  - Handle concurrent jack_port_get_buffer() calls because ardour seems to
    be doing this. (#3632)

## Docs
  - Many doc improvements.
  - Add man pages for pw-dump, pw-loopback, modules, pipewire-pulse.
  - Manpages are now made with Doxygen.
  - Add docs for pulse-modules

# PipeWire 0.3.85 (2023-11-16)

This is the fifth (and last) 1.0 release candidate that is API and ABI
compatible with previous 0.3.x releases.

## Highlights
  - Fix an issue where a link could end up paused while not negotiated.
  - Fix an infinite recursion issue when finding runnable nodes.
  - Support XDG base directories when loading ACP config.
  - Fix MIDI event recording preview in Ardour.
  - Many more small fixes, cleanups and improvements.


## PipeWire
  - Fix an issue where a link could end up paused while not negotiated.
    (#3619)
  - Fix an infinite recursion issue when finding runnable nodes by stopping
    the scan on feedback links around the driver. (#3621)
  - The system service now has better socket permissions.

## Modules
  - Add support for uclamp. This allows the scheduler to make better informed
    decisions about where tasks should be placed, and what pstate to set
    for the CPU it is running on.
  - Emit warnings when applications are not doing the right locking instead
    of crashing.
  - Improve media.name for RAOP sinks. (#3801)
  - Support pause/resume in pipe-tunnel. (#3197)
  - Remove time rlimit when probing for realtime to avoid SIGXCPU.

## SPA
  - Fix a bug where the resampler would be activated even when there is an
    ALSA pitch element. (#3628)
  - Improve resume from suspend in ALSA. (#3646)
  - Add option to expose ALSA controls as prop params.
  - Support XDG base directories when loading ACP config. This makes it possible
    to override the ACP config files.

## Bluetooth
  - Schedule nodes in the same ISO group together.
  - More BAP fixes and cleanups.

## JACK
  - Fix MIDI events from peer ports. This makes the MIDI event recording preview
    of Ardour work correctly.

## GStreamer
  - Fix some error handling in the source and sink.

## ALSA plugin
  - Improve poll descriptor handling. (#3648)

## Docs
  - Many improvements to the layout and organization.

# PipeWire 0.3.84 (2023-11-02)

This is the fourth 1.0 release candidate that is API and ABI compatible
with previous 0.3.x releases.

## Highlights
  - Fix a regression with openal because the queued buffers in the stream
    were not reported correctly.
  - Fix a bug in port busy counters that could cause random silent links.
  - Fix a regression in echo-cancel because it was not reporting its
    streams as ASYNC.
  - Fix a JACK regression where not all ports were enumerated in all cases.
  - Many more fixes and improvements.


## PipeWire
  - pw_stream now reports the queued buffers more accurately. This fixes
    a regression when using openal. (#3592)
  - The port busy counters were not updated correctly in some cases. This
    could lead to negotiation errors and silent links. (#3547)
  - Ignore latency maximum when forcing rate/quantum. (#3613)
  - Nodes can now be added to multiple groups and link-groups. (#3612)

## Modules
  - The filter-chain now also handles notify port dependencies
    correctly. (#3596)
  - Filter-chain has support for new linear, clamp, recip, exp, log, mult,
    sine builtin plugins.
  - The echo-cancel module now correctly reports its playback and capture
    streams as ASYNC to avoid running out of buffers. (#3593)
  - It is now possible to specify an array of remote names to connect to
    with the native protocol.
  - module-rtp-sap and module-rtp-sink now try to bind to the specified
    interface.

## SPA
  - The alsa plugin now removes the runtime properties such as period-num,
    period-size and max-latency when suspended. (#3613)

## Bluetooth
  - BAP Locations/Context is now set on endpoints as required by new bluez.
  - Improve selection of BAP leader.

## JACK
  - Add a jack_set_sample_rate() extension function.
  - Make sure we get the info of all nodes/ports before completing the
    jack_client_open() operation so that we can enumerate the ports
    correctly in all cases. (#3618)

## GStreamer
  - Fix types of metadata in pipewiresink.
  - Also copy metadata in buffers in all cases.
  - Fix size allocation in bufferpool for compressed formats.
  - Don't stop streaming thread when unlinked. (#3620)

## ALSA
  - The ALSA plugin now handles NULL values from mmap_areas. (#3600)

# PipeWire 0.3.83 (2023-10-19)

This is the third 1.0 release candidate that is API and ABI compatible
with previous 0.3.x releases.

## Highlights
  - A quantum change regression was fixed.
  - Use a 2 socket server now for the manager and the applications
    with (when wireplumber is updated) different permissions.
  - Reduce memory usage a little in audioconvert and use fewer buffers.
  - Some JACK deadlocks were fixed.
  - More bugfixes and improvements.


## PipeWire
  - Fix quantum change regression. (#3574)
  - Use a 2 socket server by default. One for the session-manager and one
    for applications.
  - Fix a potential use-after-free in node and device cleanup. (#3588)

## modules
  - Some hardcoded buffer size limits were removed.
  - Fix ASYNC flag on combined-streams.
  - Add support for on-demand combined-streams using metadata.

## SPA
  - alsa-udev will now ignore PCMs with the ACP_IGNORE udev environment
    variable. (#3570)
  - The audioadapter now uses at least 2 buffers when the follower is
    async.
  - The number of buffers used by plugins was tweaked a little. Most
    plugins now only ask 1 buffer.
  - Memory usage in audioconvert was reduced.
  - Fix some unaligned reads and writes and undefined left shifts reported
    by ASAN. (#3572)
  - Rework vulkan dependency checking.
  - Don't try to link ALSA devices when prepare fails. This fixes some
    crashes.
  - Fix a stall when the allowed codecs are changed in ALSA.
  - Improve ALSA rate control for sources to avoid xruns. (#3584)
  - Try to fix IEC958 TrueHD and DTS playback. (#2284)

## Bluetooth
  - Improve fallback SCO mtu when the kernel doesn't tell us.

## JACK
  - The fixed buffer size limit was removed.
  - Add an option to make input buffers writable (default true).
  - A potential deadlock was fixed when applications lock the process
    function. (#3585)
  - Use a separate thread to dispatch notifications to avoid deadlocks.
    (#3585)
  - Potentially fix silent export in ardour in some cases. (#3514)

# PipeWire 0.3.82 (2023-10-13)

This is the second 1.0 release candidate that is API and ABI compatible
with previous 0.3.x releases.

## Highlights
  - Fix a regression in some devices when the Pro-Audio profile was selected.
    Only enable the IRQ based scheduling and device linking in specific
    safe cases. (#3556)
  - Improve rate switching. In some cases the graph rate would not switch
    correctly. (#2929)
  - Fix regression in alsa wakeups that would cause silence in VMs.
  - Fix a leak in the SBC codecs for SCO.
  - More improvements to the RAOP module.
  - Other small improvements and fixes.


## PipeWire
  - Improve client property checks.
  - Allow non-power-of-2 quantums when forced.
  - Improve rate switching. In some cases the graph rate would not switch
    correctly. (#2929)
  - The PIPEWIRE_QUANTUM env variable now forces the size and rate in the
    graph for the duration of the application. The softer PIPEWIRE_LATENCY
    and PIPEWIRE_RATE can still be used to merely suggest a maximum latency
    and a rate.

## modules
  - Remove the RTSP FLUSH request in RAOP because it does not seem necessary.
  - The RAOP module now uses the common RTP stream functions.
  - Add sockets option to protocol-native to make pipewire listen on multiple
    sockets.

## SPA
  - Clean up some of the log functions.
  - Add an option in ALSA to disable linking devices together.
  - Only link pcms together when 1 capture and 1 playback pcm. For more complex
    devices we can't be sure which ones can be linked. (#3556)
  - disable tsched only when using linked devices.
  - Add some extra checks in ALSA to avoid segfaults. (#3554)
  - Add Tag support to alsa-sink and alsa-source.
  - Use dynamic pod builder when we can.
  - Set priority.driver on midi-bridge to allow it as a fallback driver. (#3562)
  - Fix regression in alsa wakeups. (#3565)
  - The PTP clock can now be found from the interface in node-driver.

## pulse-server
  - Some small cleanups and internal improvements.
  - Add some memory debugging messages.
  - Add Tag messages to streams.

## Bluetooth
  - Fix a leak in the SBC codecs for SCO.

## JACK
  - Patch up midi events in the destination buffer instead of writing to the
    source buffer. (#3580)
  - Group all jack clients together to avoid transport issues. (#3562)

## ALSA-plugins
  - Add also.deny option to block alsa clients from opening the PCM.

# PipeWire 0.3.81 (2023-10-06)

This is the first 1.0 release candidate that is API and ABI compatible
with previous 0.3.x releases.

## Highlights
  - jackdbus support is now enabled by default.
  - IRQ based scheduling in ALSA was improved and enabled by default for
    Pro-Audio profile. It will also link the pcms together to get lower
    latency. This now matches what JACK does and gives equal latency to
    PipeWire for Pro-Audio profiles.
  - Support both old and new versions of webrtc-audio-processing to make
    the transition easier.
  - Forced quantum changes by nodes or metadata will now also force a
    suspend and resume of the graph, like the rate changes to make sure all
    nodes adapt to the new quantum. This is important for Pro-Audio nodes
    that need to reconfigure the hardware to a new period in IRQ based
    scheduling.
  - Fix a regression in regex parsing.
  - Many bugfixes and improvements.


## PipeWire
  - jackdbus is by default enabled now. The idea is that when jackdbus is
    installed, the real libjack.so is in the path and we can become a
    real JACK client.
  - Forces quantum changes by nodes or metadata will now also force a
    suspend and resume in the graph, like the rate changes to make sure all
    nodes adapt to the new quantum. This is important for Pro-Audio nodes
    that need to reconfigure the hardware to a new period.
  - The stream now has an EARLY_PROCESS option that can be used to implement
    custum buffer fill levels. (#3480)
  - Fix a regression in regex parsing. (#3528)
  - Fix a bug in position reporting in the driver node. (#3189) (#3544)
  - Destroying a link will now recalculate the graph correctly.
  - Fix the rate comparison for finding the best rate in the graph.
  - Use malloc_trim() when available to release memory. (#1840)

## Tools
  - pw-cat now supports DFF DSD files.
  - pw-cli avoid some NULL derefs in some cases.

## Modules
  - The RAOP sink has seen some cleanups and improvements. It will now ask
    for feedback every 2 seconds to keep some devices alive.
  - A bug in filter-chain was fixed where it would fail to apply the gain
    when mixing just one source.
  - The filter-chain can now pass the stream volume to a control in the
    filter-chain graph. (#3434)
  - Improve volume handling in RAOP sink.

## Pulse-server
  - Some cleanup in the pending_stream handling.
  - Fix a regression in the event emission code where it failed to emit
    a changed event when a node was linked. (#3522)
  - Lower the realtime priority of pulseaudio clients.
  - Set pulse.module.id on the echo-cancel streams. (#3541)

## SPA
  - Support both old and new versions of webrtc-audio-processing to make
    the transition easier.
  - The ALSA driver now does the sync of all followers directly from the
    wakeup event. This results in more stable rate matching.
  - IRQ based scheduling in ALSA was improved and enabled by default for
    Pro-Audio profile. It will also link the pcms together to get lower
    latency. This now matches what JACK does and gives equal latency to
    PipeWire for Pro-Audio profiles.
  - GNU/Hurd support was added.
  - Some improvements to passthrough handling.

## Bluetooth
  - Improvements to the codec handling when PipeWire is used as Audio
    Gateway.
  - Adapt to new Bluez API for BAP devices.

## JACK
  - When the jack library is set in the default library path, avoid using
    LD_LIBRARY_PATH because this can cause confusion.
  - Handle clearing the latency on a port.
  - jack_property now always manages to actually change the metadata because
    it waits for a roundtrip before exiting.

# PipeWire 0.3.80 (2023-09-14)

This is a bugfix release that is API and ABI compatible with previous
0.3.x releases.

## Highlights
  - A new Tag param was added that allows arbitrary metadata to be transported
    out-of-band in the graph.
  - Vulkan DMA buf support was merged.
  - The echo-canceller was ported to webrtc-audio-processing-1.
  - Fix a regression in locating monitor sources by id in pulse-server.
  - Mixer io areas updates are now synchronized correctly with the data
    thread to avoid potential crashes.
  - Many more bugfixes and improvements.


## PipeWire
  - Handle driver nodes that refuse to change the quantum or rate.
  - A new Tag param was added that allows arbitrary metadata to be transported
    out-of-band in the graph.

## Modules
  - The pipe-tunnel source has been reworked to use a ringbuffer and rate
    adaption to keep the latency constant. It can now also function as a
    driver to reduce resampling. (#3478)

## Tools
  - pw-cat will now place media properties in Tag params.
  - pw-mon can now filter props and params.

## SPA
  - ALSA refuses to change quantum and rate when in IRQ mode.
  - ALSA will now be smarter in selecting the period size for batch devices
    and will make it depend on the samplerate. (#3444)
  - Vulkan DMA buf support was merged.
  - ALSA latency will now be reported in the time domain of the graph.
  - Add udev based autodetection for compress-offload devices.
  - The echo-canceller was ported to webrtc-audio-processing-1.
  - The v4l2 inotify code was rewritten to avoid a use-after-free and by
    using a separate watch (but same fd) for each device. (#3439)
  - The tag and latency handling was improved in audioadpter.
  - Don't use -Ofast on alpha because it can crash on denormalized
    values. (#3489)
  - The mixers now synchronize spa_io_buffers updates with the data
    thread to avoid crashes.
  - Handle NULL param updates. (#3504)

## Pulse-server
  - Fix a regression in locating monitor sources by id. (#3476)
  - Add support for use_system_clock_for_timing in module-pipe-sink.
  - Add support for checking module arguments.
  - Avoid some useless change events.

## Bluetooth
  - Ports are now marked as physical, which makes the bluetooth devices show
    up as hardware devices in Ardour and other JACK apps. (#3418)
  - Some fixes for LE audio support (#3479)

## JACK
  - Also emit unregister notify even when supressed when creating the
    client.
  - The notify callbacks now match JACK2 behaviour more.
  - The mixer io areas are updated and handled safely now to avoid
    crashes. (#3506)

# PipeWire 0.3.79 (2023-08-29)

This is a quick bugfix release that is API and ABI compatible with previous
0.3.x releases.

## Highlights
  - Fix a regression in suspend that could cause silence.
  - Fix a regression in JACK port registration that could cause all kinds of
    JACK problems. (#3485)
  - Fix a typo in the neon sample conversion functions that could cause
    distortion.
  - Add BAP broadcast source and sink support.
  - pw-top now has a batch mode to dump the output to stdout.
  - Many more bugfixes and improvements.


## PipeWire
  - Fix a regression in shutdown where a node might not first suspend
    properly. This cause loss of sound in some cases. (#3378)
  - Failure to compile a regular expression in the config file will now
    be reported and ! can be used to negate the match. (#3460)
  - Fix a regression where some nodes might not set running in some
    cases.
  - Nodes are now suspended before the format is cleared, which might
    fix some crashes.

## Tools
  - pw-top now has a batch mode to dump the output to stdout.

## SPA
  - The queued samples in audioconvert are now correctly reported in the
    delay. (#3454)
  - Make it easier to add a custom profile in ACP.
  - Fix a typo in the neon sample conversion functions that could cause
    distortion. (#3463)
  - device.profile.pro=true is added for pro audio nodes.
  - An xrun counter was added to spa_io_clock to detect and track skipped
    data because of xruns.

## Pulse-server
  - Add alsa-sink and alsa-source modules. (#3456)

## Bluetooth
  - Fix a regression where only the BAP off profile is shown.
  - Add BAP broadcast source and sink support.

## JACK
  - Also emit a latency notify when the buffer size changes.
  - Fix a regression in JACK port registration. (#3485)
  - jack_port_tie() is now supported.

## ALSA
  - Improve property handling, support lists and ranges in addition to
    fixed values. (#3451)

# PipeWire 0.3.78 (2023-08-22)

This is a small bugfix release that is API and ABI compatible with previous
0.3.x releases.

## Highlights
  - An old regression was fixed with where some nodes would not run.
  - A regression was fixed where removed events would not be shown in some
    cases. This would result in duplicate entries in audio clients.
  - Fix an off-by-one in the vban audio receiver. Tweak the rate adaption
    a little.
  - ACP will now set a UCM verb before probing the pro-audio devices.
  - More bugfixes and improvements.


## PipeWire
  - An old regression was fixed with where some nodes would not run. (#3405)
  - Suspend was improved a little to avoid races when the session manager would
    suspend right when a driver was starting.

## Modules
  - module-rtp-sap does not use the deprecated inet_aton anymore.
  - Fix an off-by-one in the vban audio receiver. Tweak the rate adaption
    a little. (#3380)

## SPA
  - ACP will now set a UCM verb before probing the pro-audio devices. (#3407)
  - The mandatory flag will be set now on the video modifiers.
  - EVL was updated to Xenomai4 r46 and xbuf creation was improved.
  - An option was added to force colors in the log even when logging to !tty.
  - The return type of spa_pod_builder_control() was fixed.
  - inotify errors are handled better now. (#3439)

## pulse-server
  - A regression was fixed where removed events would not be shown in some
    cases. (#3414)

## Bluetooth
  - Improve compatibility with more devices, avoid reusing the same transport
    for different media-sink instances to avoid encoder resets.
  - Improve enumeration of codec profiles for BAP and A2DP.

## JACK
  - Ensure we can't iterate ports from a deactivated client. Also make sure
    the JACK clients with the node.always-process=false always show their
    ports. (#3416)

## GStreamer
  - A potential crash was fixed in the device provider when stopping.

# PipeWire 0.3.77 (2023-08-04)

This is a quick bugfix release that is API and ABI compatible with previous
0.3.x releases.

## Highlights
  - Fix a bug in ALSA source where the available number of samples was miscaluclated
    and resulted in xruns in some cases.
  - A new L permission was added to make it possible to force a link between
    nodes even when the nodes can't see eachother.
  - The VBAN module now supports midi send and receive as well.
  - Many cleanups and small fixes.


## PipeWire
  - Global objects now only show permissions that apply to them. The permissions
    required to perform various API calls are documented.
  - A new L permission was added to make it possible to force a link between
    nodes even when the nodes can't see eachother.
  - Config files need to end with .conf.
  - The client.api is added the to global properties of a node.

## modules
  - The VBAN module now supports midi send and receive as well.
  - Fix module-profiler alignment and make sure we don't overrun our buffers with
    many nodes.
  - Protect libcanberra calls with a mutex because it is not thread safe. (#2834)

## SPA
  - Support older compilers for spa_clear_ptr().
  - Fix a bug in ALSA source where the available number of samples was miscaluclated
    and resulted in xruns. (#3395)
  - Don't set inotify on /dev but on the videoX devices directly. Setting inotify
    on /dev would cause a lot of spurious wakeups and lock contention in the
    fsnotify subsystem on some benchmarks.
  - Audioconvert now rate limits the warnings when it runs out of buffers. (#3384)

## pulse-server
  - Some bugs and inconsistencies were fixed in device lookup.
  - Improve subscribe event emission, detect changes to the sink or the monitor
    and send the right sink/source event. (#3388)

## JACK
  - The libjack.so now has a minor version of 3 and a micro version of the pipewire
    version.
  - JACK clients will now see portregistration from other jack clients when they
    activate/deactivate like real JACK. (#3260)

## bluetooth
  - Use some more autoptr cleanups, fix some leaks.

# PipeWire 0.3.76 (2023-07-28)

This is a quick bugfix release that is API and ABI compatible with previous
0.3.x releases.

## Highlights
  - Fix a regression that would cause the MPV pipewire backend to fail because
    of a spurious thread-loop signal.
  - Fix a crash when DBus is not found.
  - ALSA hires timestamps are now disabled by default.
  - Some more fixes and improvements.

## PipeWire
  - A new option was added to pw-thread-loop to signal when the thread starts.
    This is only used in module-rt to avoid regressions in mpv. (#3374)
  - Fix a compilation problem.
  - Stream flags now only set the properties when not already set. This fixes
    a regression with node autoconnect. (#3382)

## Tools
  - pw-cat will now stop when the stream is disconnected. (#2731)
  - Improve the pw-cat man page, mention that stdin/stdout handling is only
    on raw data.

## modules
  - module-rt will now not crash when dbus is not available but error out as
    before.
  - A new VBAN (vb-audio.com) sender and receiver was added. (#3380)

## SPA
  - Add an option in audioconvert to disable volume updates. (#3361)
  - ALSA hires timestamps are disabled by default because many drivers seem to
    give wrong timestamps and cause extra delay.

## bluetooth
  - LE Audio support is now enabled by default when liblc3 is available now that
    bluez has support for detecting the hardware features.

# PipeWire 0.3.75 (2023-07-21)

This is a bugfix release that is API and ABI compatible with previous
0.3.x releases.

## Highlights
  - Link permissions between nodes are now enforced. This avoids potential portal
    managed screencast nodes to link to the camera even though it was not assigned
    permissions to do so by the session manager.
  - Libcamera and v4l2 devices now have properties so that duplicates can be
    filtered out by the session manager.
  - A bug with draining was fixed where a buffer would be marked EMPTY and would not
    play when it contained drained samples. (#3365)
  - Many fixes and improvements.


## PipeWire
  - Permissions for links between nodes are now enforced. The link will now check
    that the owner clients of the nodes can see eachother before allowing the link.
    This avoids screensharing clients to accidentally being linked to the camera
    nodes by the session manager. A side effect is that patchbay tools will no longer
    be able to link portal managed screencast nodes to the camera, for this we need
    a new permission for those patchbay clients. (wireplumber#218)
  - The stream.rules/filter.rules are now evaluated when connecting the stream/filter
    so that more properties can be matched. (#3355)
  - Move some internal events from the context to the nodes to better handle per-node
    threads in the future.
  - The thread-loop will now signal when the thread is started.

## modules
  - A timestamp workaround in module-raop was reverted because it does not work
    in all cases. Instead latency was increased to 1.5 seconds, which also makes
    the problematic device in question work. (#3247)
  - The profiler module was reworked a bit to use the new node realtime events. It
    should now also handle dynamically added and removed drivers.
  - The module-rt now does the rtkit calls from a separate thread so that it does
    not block the main thread. This could cause deadlocks during startup in some
    cases. (#3357)

## SPA
  - Atomic operation macros were move from internal pipewire API to public API.
  - The video-info structure now has a new SPA_VIDEO_FLAG_MODIFIER_FIXATION_REQUIRED
    flag to instruct the application to fixate the modifiers. This simplifies some
    logic in applications a lot.
  - The libcamera and v4l2 nodes now have properties to enumerate the device id
    they are using. This can be used to match v4l2 devices and libcamera devices
    and filter out duplicates.
  - A bug with draining was fixed where a buffer would be marked EMPTY and would not
    play when it contained drained samples. (#3365)

# PipeWire 0.3.74 (2023-07-12)

This is a quick bugfix release that is API and ABI compatible with previous
0.3.x releases.

## Highlights
  - Fix a critical bug where audio to bluetooth devices would cut out
    randomly. (#3316)
  - Improve RAOP compatibility.
  - Avoid crashes after an update.
  - Small fixes and improvements.


## PipeWire
  - Mix info on port is now created explicitly.
  - Remove the node as a driver peer when stopping. This caused some problem
    with playback on and other remote bluetooth devices. (#3316)
  - Work on avoiding crashes when loading new modules that use internal API
    with old libpipewire. This is typical after an update where the old library is
    still loaded by an application but when a new stream is created, updated
    modules are loaded. (#3243)

## Modules
  - The RTP source module now has an option to ignore the SSRC, which is
    useful to continue to receive the stream when the sender is restarted.
  - The native protocol will refuse to load twice now instead of silently
    ignoring the error.
  - module-raop is compatible with more devices. (#3247)

## SPA
  - plugins will now warn when running out of buffers. This is always a bad
    thing.
  - Merge scope based cleanup macros.
  - Add ratelimit function.

# PipeWire 0.3.73 (2023-07-06)

This is a bugfix release that is API and ABI compatible with previous
0.3.x releases.

## Highlights
  - Fixes an ALSA resume after suspend error.
  - Handle and disable seemingly wrong hires timestamps from ALSA.
  - Filter-chain now has loadable plugin modules. The LV2 and sofa plugins are
    moved to a separate .so file to make things more modular.
  - Rate changes in the graph should now be handled more gracefully by loopback
    and filter-chain.
  - A regression in the rtp-sap module was fixed where it would in some cases
    fail to start.
  - A potential crash in the peaks resampler was fixed.
  - Many cleanups and other small bug fixes.


## PipeWire
  - Fix a potential segfault when no fallback driver was set in the config.
  - Improve OPUS detection.
  - Add ASYNC flag to pw-filter and pw-stream when queue/dequeue is not called
    from the process function. This ensure we allocate an extra buffer.
  - Discard pending process callbacks when disconnecting. (#3314)
  - Cleanups and improvements to the debug environment variable parsing.
  - The graph rate was tweaked to better handle very low rates such as those
    requested by pavucontrol when it does the signal monitoring.

## Modules
  - An example filter module was added.
  - Filter-chain and loopback now disable the resamplers if no rate is specified
    and will always follow the graph rate.
  - Improve setup of filter-chain. The graph is now created when starting
    because this ensure the target graph rate is known.
  - Filter-chain can now link notify ports to control ports in the graph.
  - Filter-chain now has loadable plugin modules. The LV2 and sofa plugins are
    moved to a separate .so file.
  - A regression in the rtp-sap module was fixed where it would in some cases
    fail to start.
  - Module-rt now has options to disable rlimits, portal and rtkit.
  - module-raop-discover now has an options to set the latency. (#3247)

## Tools
  - pw-cat now supports overriding all stream properties.

## SPA
  - Disable rate negotiation when the resampler is disabled. We will always
    follow the graph rate. 
  - Set device.icon property for UCM ports as well.
  - Improve ALSA recover when using hires timestamps. This fixes some problems
    after resume from suspend. (#3315)
  - ALSA will now warn and disable hires timestamp when they seem wrong.
    They can also be disabled manually with a property.
  - V4l2 will now gracefully handle ENOTTY when enumerating frame sizes and
    frame rates. (#3325)
  - A potential crash in the peaks resampler was fixed. (#3320)

## pulse-server
  - A client crash in pavucontrol is avoided by always setting a card name.
  - The graph rate is now taken correctly when using the FIX flags. (#3317)
  - An option was added to ignore the FIX flags of a stream. Also the
    documentation for those options was updated. (#3317)
  - module-raop-discover now support latency_msec. (#3247)

## Bluetooth
  - Remove an assert and issue a warning/recover instead when a buffer is too
    small.

## GStreamer
  - The device provider does locking when destroying the registry.

# PipeWire 0.3.72 (2023-06-26)

This is a bugfix release that is API and ABI compatible with previous
0.3.x releases.

## Highlights
  - Fix a critical bug that would refuse to update the samplerate or
    buffersize in JACK clients. (#3226)
  - A new module-netjack2-driver and module-netjack2-manager were added
    that are compatible with NETJACK2. This allows PipeWire to become
    a NETJACK2 manager or a driver between JACK2 or PipeWire servers.
  - Support was added for firewire devices with FFADO. This is untested
    for now and MIDI is not implemented yet.
  - The node scheduling was optimized some more. External drivers are now
    as efficient as in-server ones. This should improve performance of
    various drivers such as bluetooth and JACK based drivers.
  - Many, many bug fixes and a ton of improvements.


## PipeWire
  - pw-filter can now be used to write sinks and sources.
  - The node activation for drivers was changed. The driver now does not
    need to go to the server to start the processing cycle. This makes
    out-of-server drivers as efficient as in-server drivers.
  - Don't try to use drivers with 0 priority as fallback drivers. This
    avoids making the screencast driver a driver for audio. (#3219)
  - Improve xrun count reporting in pw-top and the profiler. Now each
    node has their own xrun counter updated when it fails to complete
    processing during the cycle.
  - pw-filter now also has support for TRIGGER.
  - A potential fd leak was found when fds were send to a zombie client.
    (#1840)
  - Fix a bug where monitor or capture streams were logged twice in the
    profiler. (#3278)
  - Remove stream hooks safely. (#3251)
  - A bug in serialization of container properties was fixed. This could
    result in truncated property values. (#3290)
  - The PIPEWIRE_AUTOCONNECT environment variable now always overrides the
    autoconnect settings of streams. (#3299)
  - Node, port and link destroy now avoids some useless work.
  - Port will now try to renegotiate a new format when idle. (#3266)

## Modules
  - The module-sap now is more compatible with AES67.
  - A new FFADO driver module was added. This is completely untested because
    of lack of hardware. Please test and report issues.
  - A new NETJACK2 driver and a NETJACK2 manager module were added. These
    should be drop in replacements for the JACK2 parts.
  - The RAOP discover module now tries harder to only list devices once.
  - The zeroconf discover module now tries harder to only list devices once.
  - The RAOP sink module now handles latency better and is compatible with
    some more devices. (#3247, #3282)
  - The loopback and filter-chain modules now always dequeue the last input
    buffer to avoid stuttering in some cases. (#3276)
  - The SPA node factory module can now also export nodes. This is used to
    export the PTP clock from the AES67 config file.
  - A bug in module-jack-tunnel was fixed that would cause stuttering and
    corrupted output in some cases. (#3255)
  - The resampler is now disabled in module-loopback and filter-chain when
    the samplerate is set to follow the graph rate. (#2969)
  - The way the mixer peer is sent to clients was improved. It is now also
    possible to let a remote node know about mixer port removes, which
    can avoid memory leaks and some code simplifications.

## SPA
  - Monitor ports now report latency correctly.
  - The ALSA plugin now uses htimestamp to get a more accurate ringbuffer
    position to estimate the clock skew.
  - The channelmixer now has min/max-volume settings to limit or fix the
    volume.
  - The ALSA plugin can now control the playback and capture rate of USB
    gadgets. This can avoid resampling and instead use the USB feedback
    to control the rate.
  - The ALSA output to multiple devices has been improved, some lockups
    are avoided when the device ringbuffer is full.
  - The compress-offload sink has improved negotiation.
