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