- Update to version 0.9.11
* Fix serious memory leaks
* Reduce frame/drawing initialization overhead
* Basic (incorrect, but working) support for @font vertical text layout
* Fix multiple faces per font attachment
* charmap selection fixes
* Add ass_flush_events API function
* Improve fullname font matching
* Better PAR correction if text transforms are used
* Calculate drawing bounding box like VSFilter
* Performance improvements
* Cache vector clip masks
* Avoid unnecessary glyph copies
* Various rendering fixes
* Parse numbers in a locale-independent way
* Remove support for freetype < 2.2.1, fontconfig < 2.4.1; this especially
means libass will not extract fonts into the file system anymore
* Disable script file size limit
* Match fonts against the full name ("name for humans")
* Reset clip mode after \iclip
* Improve VSFilter compatibility
* Update API documentation
* A couple of smaller fixes and cleanups
* Support \q override tag
* Support wrap style 1 (i.e. wrap, but do not equalize line lengths)
* Support border style 3 (opaque box)
* Use the event bounding box (instead of vertical position and height) for
collision detection
* Embold glyphs if no bold variant is available, but was requested
* Modify \fax to be similar to VSFilter