The 1.2.0 update focused on streamlining the user experience and improving how users interact with album art and file lists:
Introduced support for "Liquid Glass" design elements to align with the visual style of newer macOS versions. Core Functionality Mp3tag 1.2.0
If you are encountering errors when writing tags in this version, it is often due to the files being "in use" by other apps like Plex or Apple Music, or internal file corruption that Mp3tag prevents from getting worse by refusing to write. allowing users to add
Added essential shortcuts like ⇧⌘C for managing covers and ⇧⌘A for quickly adding new artwork. Mp3tag 1.2.0
Introduced the "Manage Covers" dialog, allowing users to add, remove, and reorder multiple embedded cover arts simultaneously.