libvorbis 1.3.1 (2010-02-26) -- "Xiph.Org libVorbis I 20100325 (Everywhere)"

 * tweak + minor arithmetic fix in floor1 fit
 * revert noise norm to conservative 1.2.3 behavior pending 
   more listening testing

libvorbis 1.3.0 (2010-02-25) -- unreleased staging snapshot

 * Optimized surround support for 5.1 encoding at 44.1/48kHz
 * Added encoder control call to disable channel coupling
 * Correct an overflow bug in very low-bitrate encoding on 32 bit 
   machines that caused inflated bitrates
 * Numerous API hardening, leak and build fixes 
 * Correct bug in 22kHz compand setup that could cause a crash
 * Correct bug in 16kHz codebooks that could cause unstable pure 
   tones at high bitrates

libvorbis 1.2.3 (2009-07-09) -- "Xiph.Org libVorbis I 20090709"

 * correct a vorbisfile bug that prevented proper playback of
   Vorbis files where all audio in a logical stream is in a
   single page
 * Additional decode setup hardening against malicious streams
 * Add 'OV_EXCLUDE_STATIC_CALLBACKS' define for developers who 
   wish to avoid unused symbol warnings from the static callbacks 
   defined in vorbisfile.h

libvorbis 1.2.2 (2009-06-24) -- "Xiph.Org libVorbis I 20090624"

 * define VENDOR and ENCODER strings
 * seek correctly in files bigger than 2 GB (Windows)
 * fix regression from CVE-2008-1420; 1.0b1 files work again
 * mark all tables as constant to reduce memory occupation
 * additional decoder hardening against malicious streams
 * substantially reduce amount of seeking performed by Vorbisfile
 * Multichannel decode bugfix 
 * build system updates
 * minor specification clarifications/fixes

libvorbis 1.2.1 (unreleased) -- "Xiph.Org libVorbis I 20080501"

 * Improved robustness with corrupt streams.
 * New ov_read_filter() vorbisfile call allows filtering decoded
   audio as floats before converting to integer samples.
 * Fix an encoder bug with multichannel streams.
 * Replaced RTP payload format draft with RFC 5215.
 * Bare bones self test under 'make check'.
 * Fix a problem encoding some streams between 14 and 28 kHz.
 * Fix a numerical instability in the edge extrapolation filter.
 * Build system improvements.
 * Specification correction.

libvorbis 1.2.0 (2007-07-25) -- "Xiph.Org libVorbis I 20070622"

 * new ov_fopen() convenience call that avoids the common
   stdio conflicts with ov_open() and MSVC runtimes.
 * libvorbisfile now handles multiplexed streams
 * improve robustness to corrupt input streams
 * fix a minor encoder bug
 * updated RTP draft
 * build system updates
 * minor corrections to the specification

libvorbis 1.1.2 (2005-11-27) -- "Xiph.Org libVorbis I 20050304"

 * fix a serious encoder bug with gcc 4 optimized builds
 * documentation and spec fixes
 * updated VS2003 and XCode builds
 * new draft RTP encapsulation spec

libvorbis 1.1.1 (2005-06-27) -- "Xiph.Org libVorbis I 20050304"

 * bug fix to the bitrate management encoder interface
 * bug fix to properly set packetno field in the encoder
 * new draft RTP encapsulation spec
 * library API documentation improvements

libvorbis 1.1.0 (2004-09-22) -- "Xiph.Org libVorbis I 20040629"

 * merges tuning improvements from Aoyumi's aoTuV with fixups
 * new managed bitrate (CBR) mode support
 * new vorbis_encoder_ctl() interface
 * extensive documentation updates
 * application/ogg mimetype is now official
 * autotools cleanup from Thomas Vander Stichele
 * SymbianOS build support from Colin Ward at CSIRO
 * various bugfixes
 * various packaging improvements

libvorbis 1.0.1 (2003-11-17) -- "Xiph.Org libVorbis I 20030909"

 * numerous bug fixes
 * specification corrections
 * new crosslap and halfrate APIs for game use
 * packaging and build updates

libvorbis 1.0.0 (2002-07-19) -- "Xiph.Org libVorbis I 20020717"

 * first stable release