Besides FFmpeg 2.2 being released this weekend
, the Libav project that was forked from FFmpeg also released a new version.
Libav 10 was released on Sunday and features many updates, including reference-counted data buffers, HEVC / H.265 support has been included with decoding support, a native VP9 decoder has been added with libvpx, and there's also other new native decoders: WebP, JPEG 2000, and AIC. Many of these improvements are common items seen in recent versions of FFmpeg with some code sharing still happening.
Those interested in using Libav over FFmpeg can visit Libav.org
to obtain the new version 10 release and there's also the Libav 10 Git change-log