Looking through the changelog for the MKVToolNix 9.5.0 release, we can’t help but notice that there are improvements to mkvmerge’s MPEG transport stream, adding better detection of H.264 files and support for handling Blu-ray PCM audio streams that contain a weird number of channels, VobSub handling fixes, as well as better handling of H.264 elementary streams. Additionally, there’s now support for the “field order” video track header element in the MKVToolNix GUI, as well as the mkvmerge and mkvpropedit components, mkvmerge’s Ogg Vorbis and OGM reader was updated to correctly recognize Opus files that contain comment headers, which was broken in the MKVToolNix 9.4.0 release, and GUI options that let users modify the “writing application” and “muxing application” elements in the “segment information” container.