-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
+ ff1ec0c add avio_pause and avio_seek_time as replacements
+ for _av_url_read_fseek/fpause
+ cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
+ should be used instead.
+ 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
+ f87b1b3 rename open flags: URL_* -> AVIO_*
+ f8270bb add avio_enum_protocols.
+ 5593f03 deprecate URLProtocol.
+ c486dad deprecate URLContext.
+ 026e175 deprecate the typedef for URLInterruptCB
+ 8e76a19 deprecate av_register_protocol2.
+ b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
+ 1305d93 deprecate av_url_read_seek
+ fa104e1 deprecate av_url_read_pause
+ 727c7aa deprecate url_get_filename().
+ 5958df3 deprecate url_max_packet_size().
+ 1869ea0 deprecate url_get_file_handle().
+ 32a97d4 deprecate url_filesize().
+ e52a914 deprecate url_close().
+ 58a48c6 deprecate url_seek().
+ 925e908 deprecate url_write().
+ dce3756 deprecate url_read_complete().
+ bc371ac deprecate url_read().
+ 0589da0 deprecate url_open().
+ 62eaaea deprecate url_connect.
+ 5652bb9 deprecate url_alloc.
+ 333e894 deprecate url_open_protocol
+ e230705 deprecate url_poll and URLPollEntry
+
+2011-04-10 - lavu 50.40.0 - pixfmt.h
+ Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
+
+2011-04-08 - lavf 52.106.0 - avformat.h
+ Minor avformat.h cleanup:
+ a9bf9d8 deprecate av_guess_image2_codec
+ c3675df rename avf_sdp_create->av_sdp_create
+
+2011-04-03 - lavf 52.105.0 - avio.h
+ Large-scale renaming/deprecating of AVIOContext-related functions:
+ 724f6a0 deprecate url_fdopen
+ 403ee83 deprecate url_open_dyn_packet_buf
+ 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
+ b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
+ 8978fed introduce an AVIOContext.seekable field as a replacement for
+ AVIOContext.is_streamed and url_is_streamed()
+ b64030f deprecate get_checksum()
+ 4c4427a deprecate init_checksum()
+ 4ec153b deprecate udp_set_remote_url/get_local_port
+ 933e90a deprecate av_url_read_fseek/fpause
+ 8d9769a deprecate url_fileno
+ b7f2fdd rename put_flush_packet -> avio_flush
+ 35f1023 deprecate url_close_buf
+ 83fddae deprecate url_open_buf
+ d9d86e0 rename url_fprintf -> avio_printf
+ 59f65d9 deprecate url_setbufsize
+ 3e68b3b deprecate url_ferror
+ 66e5b1d deprecate url_feof
+ e8bb2e2 deprecate url_fget_max_packet_size
+ 76aa876 rename url_fsize -> avio_size
+ e519753 deprecate url_fgetc
+ 655e45e deprecate url_fgets
+ a2704c9 rename url_ftell -> avio_tell
+ e16ead0 deprecate get_strz() in favor of avio_get_str
+ 0300db8,2af07d3 rename url_fskip -> avio_skip
+ 6b4aa5d rename url_fseek -> avio_seek
+ 61840b4 deprecate put_tag
+ 22a3212 rename url_fopen/fclose -> avio_open/close.
+ 0ac8e2b deprecate put_nbyte
+ 77eb550 rename put_byte -> avio_w8
+ put_[b/l]e<type> -> avio_w[b/l]<type>
+ put_buffer -> avio_write
+ b7effd4 rename get_byte -> avio_r8,
+ get_[b/l]e<type> -> avio_r[b/l]<type>
+ get_buffer -> avio_read
+ b3db9ce deprecate get_partial_buffer
+ 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
+
2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
Add audio_service_type field to AVCodecContext.