• Fixed regression in Vorbis decoder, introduced in 0.1.7, that caused freezes and crashes when playing some Vorbis files (#1154, #1155);
• Resolved issue of video stalling during progressive loading of Theora files (#1151);
• Updated MIME and file extension mappings in Ogg importer to be more up-to-date with the recently proposed changes;
• Some small improvements in export settings handling in Ogg exporter.

New features:

Exporting Oggs - XiphQT can now be used to produce Ogg files; two encoders are included in version 0.1.7: Theora & Vorbis;
Multichannel audio - XiphQT now uses correct channel mappings for Ogg files with multichannel (up to 5.1) Vorbis and FLAC audio;
Progressive loading - progressive loading in Ogg importer has been mostly finished, and is enabled for network sources and local files larger than 7.0 MB.

Fixes and improvements:

XiphQT builds as a single statically-linked bundle, which simplifies installation and makes embedding in other applications much easier (see e.g. Democracy Player);
Ogg importer uses bulk-update API and does it less frequently;
assembly optimized code is on by default for the Theora decoder and encoder on Intel platform;
other small fixes.

Known problems and limitations:

while Ogg Theora files are progressively loading video stalls once a second until the loading process is completed - we're working on this;
metadata/tags support in Ogg exporter is not implemented, yet;
XiphQT still does not support native FLAC file format.