libEBML v1.4.1 is now required due to a bug in libEBML that caused pointers to just-freed memory being returned to the caller under certain invalid data constellations, causing use-after-free errors in all of MKVToolNix's programs.įreeware programs can be downloaded used free of charge and without any time limitations.

libEBML: the optional, bundled version of libEBML was updated to v1.4.1 mkvextract: h.265/HEVC extraction: the code for skipping extraction of prefix SEI NALUs in the first frame was skipping two bytes too few, resulting in broken processing of all following bytes. MKVToolNix GUI: added an option to the preferences for the window to stay on top of other windows

For example, when saving multiplexer settings the extension `.mtxcfg` will be added. MKVToolNix GUI: the GUI will now add a context-specific default extension to file names selected for saving on platforms that don't add one itself (e.g. MKVToolNix GUI: job queue: the maximum number of jobs to run concurrently can now be increased in the preferences.

MKVToolnix 79.0 for mac instal