v2.3.0

Added

• Alpine Linux support (#164).
• WebVTT style and region support (#344).
• Marlin DRM support (#381).
• HLS CHARACTERISTICS attribute on #EXT-X-MEDIA (#404).
• Default text language support ('--default_text_language') (#430).
• AV1 support (#453).
• HLS audio only master playlist support (#461).

Fixed

• MPEG-TS demuxing with AC-3 / E-AC-3 (#487). kFrameSizeCodeTable were reversed
  results in wrong frame size being detected except for 44.1kHz.
• HLS peak bandwidth calculation with very short segments (#498). The short
  segments should be excluded from peak bandwidth calculation per HLS
  specification.
• Output directory permission (#499). The new directory permission was fixed to
  0700.
• Workaround access units with extra AUD (#526). VLC inserts an extra AUD in the
  key frames, which caused packager to delay emitting the frame. The delays
  accumulated and became noticeable after running the live packaging for some
  time.
• Problem when using Trick Play with Ad Cues (#528).

Changed

• Disable bundled binutil and gold on Linux by default. There may be a slight
  increase in binary link time.
• Reduced official Docker image size from ~1GB to ~15MB (#535). The new image
  is based on Alpine and contains only result binaries (packager and
  mpd_generator).