Mp3tag v3.30 released
I've just released Mp3tag v3.30 and wanted to outline some of the new features and changes:
Improvements for Multiple Files with Varying Covers
So far, adding a cover to multiple files with varying covers was only possible via a dedicated action and not directly via drag and drop or the right-click context menu on the Tag Panel. This release adds support for adding covers to files with varying covers (also via drag and drop if the Ctrl key is pressed) at Tag Panel and Extended Tags. It also improves the cover menu labels to indicate which functions are applied to all covers if multiple files with varying covers are selected.
Field mapping for Matroska MKV video files
The previous version introduced improved internal field mappings for MKV video files, which were not compatible with every app. This release adds an option to disable video-specific mappings for Matroska video to increase compatibility with apps that only read TITLE with target type T=30 (see Options → Tags → Advanced).
ARM64 Explorer Context-Menu Extension
Explorer context-menu extensions have the requirement to be made available in the architecture of the host system, i.e., 32-bit, 64-bit, or ARM64 for ARM-based systems. This version adds an ARM64 context-menu extension which shows the Mp3tag menu item on ARM-based Windows installations.
As usual, this new version also includes bug fixes and other improvements, including a fix for a MusicBrainz track number issue. If you're curious, the changelog has the complete list.
Download the new version
https://www.mp3tag.de/en/download.html
Support my work as an Indie Developer
https://www.mp3tag.de/en/donations.html
Past Saturday also marked Mp3tag’s 25th anniversary and I took a quiet moment before the day ended to raise a small toast to Mp3tag, and to all of you who’ve supported my work and helped keep it going for over a quarter of a century 
Enjoy and take care
— Florian