-Never assume the API of libav* to be stable unless at least 1 week has passed since
-the last major version increase.
+Never assume the API of libav* to be stable unless at least 1 month has passed
+since the last major version increase.
+
The last version increases were:
-libavcodec: ?
-libavdevice: ?
-libavfilter: 2009-10-18
-libavformat: ?
-libpostproc: ?
-libswscale: ?
-libavutil: 2009-03-08
+libavcodec: 2011-04-18
+libavdevice: 2011-04-18
+libavfilter: 2011-04-18
+libavformat: 2011-04-18
+libpostproc: 2011-04-18
+libswscale: 2011-04-18
+libavutil: 2011-04-18
API changes, most recent first:
+2011-04-XX - bebe72f - lavu 51.1.0 - avutil.h
+ Add AVPictureType enum and av_get_picture_type_char(), deprecate
+ FF_*_TYPE defines and av_get_pict_type_char() defined in
+ libavcodec/avcodec.h.
+
+2011-04-xx - 10d3940 - lavfi 2.3.0 - avfilter.h
+ Add pict_type and key_frame fields to AVFilterBufferRefVideo.
+
+2011-04-xx - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
+ Add sample_aspect_ratio fields to vsrc_buffer arguments
+
+2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
+ Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
+
+2011-04-15 - lavc 52.120.0 - avcodec.h
+ AVPacket structure got additional members for passing side information:
+ 4de339e introduce side information for AVPacket
+ 2d8591c make containers pass palette change in AVPacket
+
2011-04-12 - lavf 52.107.0 - avio.h
Avio cleanup, part II - deprecate the entire URLContext API:
175389c add avio_check as a replacement for url_exist