MKVToolNix v95.0 released

2025-09-14 — mosu

Hey :)

Time for another release: a couple of new features/enhancements contributed by a kind person, a handful of bug fixes.

You can download the source code or one of the packages. The Windows packages as well as the Linux AppImage are available already. The other Linux packages & the macOS disk image are still being built and will be available over the course of the next couple of hours.

Here are the NEWS since the previous release:

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.

Have fun 😁