MKVToolNix v30.1.0 已釋出，主要修復了 30.0.0 版本的 GUI 功能更新導致 Bug ，具體更新內容如下：

Bug fixes

• build system: fixed building on non-UTF-8 locales. Fixes #2474.

• MKVToolNix GUI: multiplexer: implemented a workaround for drag & drop not working on macOS with Qt 5.12 due to a bug in Qt 5.12. Fixes 

  #2472.

• MKVToolNix GUI: chapter editor: when opening a Matroska/WebM file that doesn’t contain chapters and later saving chapters back to them, the editor was truncating the file down to a couple of KB in size. This was a regression introduced with the implementation of #2439 in v30.0.0 Fixes 

  #2476.