PulseAudio 6.0

Changes at a glance:

  * Bluez 5 HSP (headset profile) support, both with and without oFono
  * SystemD socket activation support
  * Better support for multichannel and 2.1 profiles
  * Protocol optimisations
  * Zsh shell completion support
  * Remap optimisations
  * Lots of other enhancements, bug fixes, and documenation and i18n updates

Detailed change log:

  http://www.freedesktop.org/wiki/Software/PulseAudio/Notes/6.0

Contributors:

  Alexander Couzens
  Alexander E. Patrakov
  Alexander Kurtz
  Alexander Potashev
  Andrey Semashev
  Arun Raghavan
  Bradley Broom
  Colin Guthrie
  David Henningsson
  Dimitris Spingos
  Dušan Kazik
  Evan Nemerson
  Felipe Sateler
  Hemanth Meenakshisundaram
  Hui Wang
  James Bunton
  Javier Jardón
  João Paulo Rechi Vita
  Joe Marcus Clarke
  Juho Hämäläinen
  Luiz Augusto von Dentz
  Lukas Peleska
  Lukasz Marek
  Mauro Guerrera
  Michał Górny
  Niels Ole Salscheider
  Pali Rohár
  Parin Porecha
  Pete Beardmore
  Peter Meerwald
  Peter Ujfalusi
  Pierre Ossman
  poljar (Damir Jelić)
  Rafael Ferreira
  Rex Dieter
  Ricardo Salveti de Araujo
  Sajeesh Sidharthan
  Sjoerd Simons
  Tanu Kaskinen
  Wim Taymans
  Yuri Chornoivan


PulseAudio 5.0

Changes at a glance:

  * BlueZ 5 support (A2DP only)
  * Reimplementation of the tunnel modules
  * Native log target support for systemd-journal
  * Resampler refactoring
  * --monitor-stream option for parecord and parec
  * "latency_msec" argument for module-rtp-recv
  * "inhibit_auto_suspend" argument for module-rtp-send
  * "auto" argument for module-tunnel-sink and module-tunnel-source
  * Removed module-bluetooth-proximity
  * Jack detection for line out
  * Laptop internal surround speaker volume support
  * Improved float->s16 and s16->float sample conversion for ARM NEON
  * "Available" flag for card profiles
  * Removed module-dbus-protocol from the default configuration
  * Lots of other enhancements, bug fixes, and documenation and i18n updates

Detailed change log:

  http://www.freedesktop.org/wiki/Software/PulseAudio/Notes/5.0

Contributors:

  Alexander Couzens
  Alexander E. Patrakov
  Alexander Potashev
  Anton Lundin
  Arun Raghavan
  Ben Brewer
  Cheng-Chia Tseng
  Colin Guthrie
  Damir Jelić
  Daniel Albers
  David Henningsson
  Dominique Leuenberger
  Héctor Martín
  Ismo Puustinen
  Jan Alexander Steffens
  Javier Jardón
  João Paulo Rechi Vita
  Juho Hämäläinen
  Kenneth Perry
  Kerrick Staley
  Kiran Krishnappa
  Koop Mast
  Lars-Peter Clausen
  Laurentiu Nicola
  Luiz Augusto von Dentz
  Magnus Ekhall
  Mikel Astiz
  Mitchell Fang
  Nikolay Amiantov
  Parin Porecha
  Peter Meerwald
  Pierre Ossman
  Piotr Drąg
  Rafael Ferreira
  Ryan Lortie
  Scott Reeves
  Shuai Fan
  Stefan Sperling
  Tanu Kaskinen
  Wim Taymans
  Yuri Chornoivan
  victory


PulseAudio 4.0

Changes at a glance:

  * Better handling of low latency requests
  * Optimisations while mixing (generic, ARM NEON)
  * Default resampler is now speex-float-1 (lower CPU usage)
  * Major Bluetooth refactoring for better reliability and easier maintenance
  * Fixes for graceful hand-off to/from JACK
  * New module to apply ducking based on stream roles
  * Echo canceller infrastructure fixes
  * Bash and zsh completion for command line tools
  * Solaris and OS X fixes
  * Lots of other enhancements, bug fixes, and documenation and i18n updates

Detailed change log:

  http://www.freedesktop.org/wiki/Software/PulseAudio/Notes/4.0

Contributors:

  Akihiro Tsukada
  Albert Zeyer
  Arun Raghavan
  Christoph Gysin
  David Henningsson
  Flavio Ceolin
  Jarkko Suontausta
  Javier Jardón
  João Paulo Rechi Vita
  Jyri Sarha
  Luiz Augusto von Dentz
  Maarten Lankhorst
  Marc-Antoine Perennou
  Martin Pitt
  Matěj Laitl
  Mikel Astiz
  Paul Meng
  Peter Meerwald
  Peter Nelson
  Piotr Drąg
  poljar (Damir Jelić)
  Robin H. Johnson
  Stefan Huber
  Ștefan Săftescu
  Tanu Kaskinen
  Vadim Troshchinskiy
  Wang Xingchao
  Yuri Chornoivan

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Change logs for previous versions can be seen at:

  http://www.freedesktop.org/wiki/Software/PulseAudio/Notes