Software Update: MKVToolnix 60.0.0

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Moritz Bunkus has released version 60 of MKVToolNix. With this open source program, matroska files can be viewed, edited and converted. For example, sound tracks and subtitles can be added, removed or set as default. MKVToolNix is ​​a collection of separate command line tools, but a graphical user interface is also included. Downloads are available for Windows, macOS, and various Linux distributions. The following changes and improvements have been made in this release:

MKVToolNix v60.0.0 released

Here’s a new release of MKVToolNix: v60. It includes a substantial amount of improvements for BCP 47/RFC 5646 language tags. It also fixes a nasty bug in the HEVC code that could lead to a loss of some frames when appending HEVC tracks under certain circumstances.

New features and enhancements

  • all: IETF BCP 47/RFC 5646 language tags: added support for language families from ISO 639-5 that aren’t part of 639-2.
  • all: IETF BCP 47/RFC 5646 language tags: implemented support for Alpha 2 country codes of the “user-defined” category: AA, QM–QZ, XA–XZ and ZZ.
  • all: IETF BCP 47/RFC 5646 language tags: updated the various lists of valid subtags from the official specs.
  • MKVToolNix GUI: multiplexer: pressing the keyboard shortcut for the track’s “Language” label (Alt+L for English) will now open the language dialog.
  • MKVToolNix GUI: multiplexer: added an option in the preferences for turning off the colored boxes indicating which file each track belongs to.

Bug fixes

  • all: IETF BCP 47/RFC 5646 language tags: fixed validating extended language & variant subtags against their allowed prefixes (eg a valid tag with a country code as in de-CH-1996 is recognized as valid while two generally known variants that aren’ t allowed together as in de-1901-1996 is recognized as invalid).
  • all: IETF BCP 47/RFC 5646 language tags: when looking up a language for a two- or three-letter code, the programs will no longer compare that code with language names as that was unintended, ambiguous (eg the code “Ga” could be interpreted as the 639-2 alpha-2 code for “Irish” or as the name of the language called “Ga”) and only worked with languages ​​whose name was at most three letters long.
  • mkvmerge: HEVC/H.265: appending Matroska files with HEVC tracks might lead to the loss of the first couple of frames from each of the second and all following files. Fixes #3170.
  • mkvmerge, mkvextract: HEVC/H.265 parser: fixed the programs aborting when parsing VPS or SPS NALUs with invalid content due to unhandled exceptions. Fixes #3162.
  • MKVToolNix GUI: multiplexer: when the option “use legacy MIME types for font attachments” is enabled, the GUI will now use application/x-truetype-font for font collection files.
  • MKVToolNix GUI: multiplexer: fixed escaping the mkvmerge argument in the “Show command-line options” dialog for the “Windows (cmd.exe)” mode. Fixes #3164.
  • MKVToolNix GUI: multiplexer: when adding multiple files at once, the GUI will sort file names with numbers the way a human would expect it to. For example, 1.mp4, 9.aac,, are now sorted exactly that order instead of 1.mp4,,, 9.aac.
  • MKVToolNix GUI: header editor: the header editor will now honor the “use legacy MIME types when adding font attachments” setting when adding new attachments.

Version number 60.0.0
Release status Final
Operating systems Windows 7, Linux, BSD, macOS, Solaris, Windows 8, Windows 10
Website Moritz Bunkus
License type GPL
ApplicationBSDDownloadEnglishFontGPLGUIHEVCHonorhtmlHumanIrishISOLetterLinuxmacOSmp4OrderShortcutSoftwareSoftware UpdateSolarisTagsToolsTracksWindowsWindows 10Windows 7Windows 8