1.2.0 - January 27, 2014

 - Added missing ao_file_extension() (see Trac #1841)

 - Fixed memory leak in ao_shutdown() (see Trac #1799)

 - Updated manpage libao.conf.5 (see Trac #1822)

 - Corrected doc/ao_play.html (see Trac #1808)

 - Latency adjustments

 - Implement PulseAudio client_name (see Trac #1924)

 - Other ALSA, Pulse, Roar, sndio and MacOS driver improvements

1.1.0 - February 21, 2011

 - Add autofoo ld symbol versioning to build system

 - Update Roar driver to latest API

 - Fix Roar driver to not block on SLP lookup during probe

 - Improve/correct latency setup in ALSA (see Trac #1762)

 - Add missing ctype.h header in build (see Trac #1760)

 - Move toward more consistent option naming across drivers

 - Fix Mac OS X AUHAL support to properly handle suspend/wakeup,

   headphone plug/unplug, other hardware events

 - Correct ao_example.c source to not pass dangling pointer for 

   the matrix argument.

 - Add 24 bit playback to Pulse plugin

 - Fix 24 bit playback in ALSA plugin

 - Fix segfaults when closing a driver that did not successfully open.

 - Fix compilation of sndio plugin

 - Fix building Mac OS X driver AUHAL compilation for 10.5,

   restore Mac OS X 10.4 support

1.0.0 - March 25, 2010

 - AO returns to active development

 - Added surround channel mapping API and capability

 - Update and test all drivers on modern installs

 - New config file options

 - Driver options may be specifid in config file

 - Support for MacosX < 10.5 dropped, driver modded to AUHAL

 - Build in WMM driver rather than using dlopen()

 - Added Roar Audio driver

 - Added OpenBSD SNDIO driver

 - Work around ESD non-4096 byte write bug

 - Work around aRts server crash bug

 - Workaround for VIA82xx click/crackle bugs under ALSA

 - Remove dead/unused drivers (solaris, alasa05, mmsound)

 - Numerous patches from multiple downstreams

0.8.8 - May 24, 2007

 - New win32 driver

 - Few fixes and changes in autotools and configuration files.

0.8.7 - unreleased snapshot

- obsolete alsa device renamed to alsa05

- the 'alsa' device now uses the 0.9/1.0 API

- ALSA driver fixes

0.8.6 - January 11, 2005

- Added Polypaudio driver(libao-polyp 0.4) 

  from Lennart Poettering <mzyvonbcbylc (at) 0pointer (dot) de>

- Use esd_close() in the esd driver

- Broaden sample rate tolerance in the OSS driver for nForce 

  compatibility

0.8.5 - March 19, 2004

- Support now for the ALSA 1.0 API

- Can build with --disable-esd option again

- Minor build fixes

- ALSA mmap() mode can be enabled/disabled at runtime using "use_mmap"

  option.

- Patch to OSS plugin to fix skipping issues with some drivers

  (like emu10k1).

0.8.4 - October 4, 2003

- Added AIX sound driver from Stefan Tibus <sjti@gmx.net>

- Committed some fixes from the Fink project to allow compiling on

  OS X (still with all the dlcompat stuff)

- Improvements in plugin detection code by David Walser, especially

  when ESD or aRts are present.

- NAS plugin from Antoine Mathys.

- Portability fixes for various platforms (including dlopen() bugs) 

  including HP-UX and *BSD.

- Memory/resource leak fixes

- Significant fixes to ALSA 0.9.x plugin by Kevin Cody, Jr.  This

  should fix stuttering audio for mpg321 users.  The

  --enable-alsa09-mmap option to ./configure turns on memory-mapped

  I/O.  Note this is an experimental feature and causes some problems

  with some sound card drivers and also users of the dmix software mixer.

0.8.3 - July 2002

- fix to ao.m4 macro

- minor alsa09 plugin updates

- fixes to irix plugin

0.8.2 - December 2001

- alsa09 plugin updated

0.8.0 - August 2000

- Major API rewrite.  Old apps and plugins will not work with this library!

- Default driver detection now works.

- /etc/libao.conf and ~/.libao config files now supported, see libao.conf man

  page for details.

- WAV files can now be piped to non-picky applications.  (Please don't

  complain if this fails.  You shouldn't be using be using WAV for this

  anyway.)

- Various portability fixes for Solaris and *BSD.

0.7.0 - June 2000

- minor build fixes for different platforms

0.6.0 - December 2000

- slight api modification with ao_append_option()

- fixed an option leak

0.5.0 - November 2000

- first official release under the Xiphophorus projects