MKVToolNix 95.0 “Goodbye Stranger”

# Version 95.0 "Goodbye Stranger" 2025-09-14

## New features and enhancements

* mkvmerge, MKVToolNix GUI: new chapter generation feature: a new placeholder
  has been introduced when generating chapters for appended files, <TITLE>,
  which will be replaced by the appended file's title metadata. Implements
  #6151. Implementation by Jason Donenfeld.
* mkvmerge: the display matrix from MP4 files are now translated into
  appropriate roll and yaw values for output MKV files. Implements
  #6150. Implementation by Jason Donenfeld.
* mkvmerge: add `--date` argument to set the date metadata. Implements
  #6155. Implementation by Jason Donenfeld.

## Bug fixes

* build system: fixed building with the upcoming Boost v1.89.0 by only
  requiring the header part of the Boost.System library as it's been
  header-only since v1.69.0. Fixes #6143.
* mkvmerge: PCM packetizer: mkvmerge will now always write frames with 40ms of
  samples, no matter how long or short the frames in the source files
  were. Part of the fix of #6149.
* mkvmerge: MP4/QuickTime reader: fix exorbitant memory usage when reading PCM
  audio tracks. Part of the fix of #6149.

## Build system changes

* Boost v1.74.0 or newer is now required.