v2.63

• Support decoding FLAC in MP4.
• AAC decoder: now recognizes 6.1ch/7.1ch AAC channel config constants (11 and 12) defined in 14496-3:2009/Amd 4:2013
• Concatenating files with no title tag with --concat now creates empty chapter name (formerly file name was used).
• --start now accept negative value. using --start and --delay at the same time is not allowed now. These two options are the same in functionality-wise, except for the reversed sign (For trimming, you use positive value for ---start, and negative value for --delay).
• --adts and --concat doesn't allow concatenating files with varying sample format anymore.
• External dlls are now loaded in lazy way, which means that they are not loaded until needed.
• Increased buffering size for --play to avoid glitches on multi channel files.
• --native-resampler now always use dedicated AudioConverter.
• CAF: enabled 7.1ch rear AAC output.
• AAC in CAF: when chan chunk is not present, get channel layout from kuki chunk.
• Named pipe output is removed. I guess it has been rarely used anyway, but if you happen to want it, use https://github.com/nu774/namedpipe .

v2.62

Add support on Wavpack-DSD file (requires wavpack v5 DLL).

v2.61

Fix 7.1ch PCE: was incorrectly writing object_type(2) instead of profile(1). AFAIK, this doesn't seem to actually affect decoders because decoders are only interested in channel layouts in PCE, but still it was incorrect, and should be fixed.

v2.60

• Fix: combination of --adts and --concat was generating invalid AAC file.
• Changed 7.1ch rear channel layout in favor of Apple QuickTime.
• Support new Wavpack v5 64bit API
• Update: libsoxr
• Update: taglib

qaac was using 3 front + 2 side + 2 back for 7.1ch rear output. However, it turned out that Apple QuickTime cannot handle this, and only recognizes 3 front + 4 back. OTOH, libavcodec couldn't recognize the latter until this patch http://ffmpeg.org/pipermail/ffmpeg-cvslog/2015-June/090556.html. Anyway it now handles both, so I decided to change 7.1ch rear layout to 3 front + 4 back, which is supported by both of them.

v2.59

• Fix: Was failing encoding mono AAC to AAC.
• Support Wavpack v5 interface (with large file support)

Wavpack version 5 is still in alpha state, and DLL is not officially provided. If you want to try it, you have to build it yourself from the source code.

This version of qaac supports both of old and new Wavpack DLL (they are binary compatible). When new functions provided in version 5 library are detected, qaac will use them.

v2.58

Fixed: mono files couldn't be encoded to AAC since 2.56.

v2.57

• New option: --tag-from-file. This option is similar to --tag, but tag value is read from a file. Character encoding is guessed, but you can specify it by --text-codepage.
• New option: --copy-artwork. When specified, front cover art is copied from source file. When --artwork is also specified, this option is ignored. Artwork can be resized by --artwork-size.
• Better support of tags in files referred from a cuesheet. Now they are also imported.
• Disallow decoding FLAC file via libsndfile. If you want FLAC, use libFLAC.
• Ogg Vorbis decoding support via libsndfile.

v2.56

• Allow path separators (slash or back slash) in --fname-format, and automatically create directory hierarchy according to the spec given by --fname-format.
• Fixed a typo (--tag:geID tag was ignored because of this).
• Added debugger output.

v2.55

Yet another UniversalCRT compatibility issue. Since 2.52, qaac couldn't read file formats other than WAV on Windows XP.

v2.54

Fix: Since 2.52, qaac has been compiled with MSVC14, and couldn't open non WAV files larger than 2GB, because of the C runtime change on MSVC14.