The last version increases were:
libavcodec: 2013-03-xx
libavdevice: 2013-03-xx
-libavfilter: 2012-06-22
+libavfilter: 2013-12-xx
libavformat: 2013-03-xx
libavresample: 2012-10-05
libswscale: 2011-06-20
-libavutil: 2012-10-22
+libavutil: 2013-12-xx
API changes, most recent first:
+2013-12-xx - xxxxxxx - lavc 55.30.0 - avcodec.h
+ Add HEVC profiles
+
+2013-12-xx - xxxxxxx - lavc 55.28.1 - avcodec.h
+ av_frame_alloc(), av_frame_unref() and av_frame_free() now can and should be
+ used instead of avcodec_alloc_frame(), avcodec_get_frame_defaults() and
+ avcodec_free_frame() respectively. The latter three functions are deprecated.
+
+2013-11-xx - xxxxxxx- - lavu 52.20.0 - frame.h
+ Add AV_FRAME_DATA_STEREO3D value to the AVFrameSideDataType enum and
+ stereo3d.h API, that identify codec-independent stereo3d information.
+
+2013-11-xx - xxxxxxx- - lavu 52.19.0 - frame.h
+ Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
+ identifies ATSC A53 Part 4 Closed Captions data.
+
+2013-11-xx - xxxxxxx - lavu 52.18.0 - mem.h
+ Move av_fast_malloc() and av_fast_realloc() for libavcodec to libavutil.
+
+2013-10-xx - xxxxxxx - lavc 55.27.0 - avcodec.h
+ Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
+ private option of the mpegvideo encoder family.
+
2013-11-xx - xxxxxxx - lavc 55.26.0 - vdpau.h
Add av_vdpau_get_profile().
+ Add av_vdpau_alloc_context(). This function must from now on be
+ used for allocating AVVDPAUContext.
2013-11-xx - xxxxxxx - lavc 55.25.0 - avcodec.h
Add ITU-R BT.2020 and other not yet included values to color primaries,