Download MKVToolnix 64.0.0

Moritz Bunkus has released version 64 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 v64.0.0 released

Hope y’all are having a couple of stress-free days behind & ahead of you, whatever you might or might not celebrate. I still haven’t had much energy to invest into coding, to be honest, but decided to do one last release in 2021 anyway, mostly fixing a couple of smaller issues — especially the wrong-sized icons on high DPI displays, which I’ ve gotten so many bug reports about.

New features and enhancements

• MKVToolNix GUI: language dialog: when the user switches between the two edit modes, the mode’s corresponding first control is automatically focused.

bug fixes

• all: language lists: the entries for “Ancient Greek (to 1453)” and “Modern Greek (1453-)” have been renamed to “Greek (ancient, -1453)” and “Greek (modern, 1453-)” respectively in order to be easier to find.
• mkvmerge: VobSub reader: files containing id: — lines to indicate that the track language isn’t known were rejected by mkvmerge. Now they’re accepted, and und (undetermined) is used as the language. Fixes #3246†
• MKVToolNix GUI: chapter editor: the “Save to Matroska or WebM file” function was using the wrong standard file dialog (the “open file” one instead of “save”), leading to confusing button names. Fixes #3242†
• MKVToolNix GUI: high DPI scaling: fixed the icons in the tool selector having the wrong size for scaling factors other than 100% or 200%. Fixes #3229†

Build system changes

• The bundled fmt library was updated to v8.0.1.
• The bundled nlohmann-json library was updated to v3.9.1.
• The bundled pugixml library was updated to v1.11 revision 6a76cac.
• The bundled utf8-cpp library was updated to v3.2 revision b85efd6.