If you are trying to edit 4K HDR video, move along. If you want to create Netflix-style streaming files, use Adobe Encore or free tools like DVDStyler.
Version was a maintenance release that fixed several bugs related to subtitle synchronization, audio dropout issues, and compatibility with Windows 7 and 8 (at the time). It remains a favorite among archivers because it lacks the online activation hassles of newer versions like Authoring Works 5 or 6. Portable TMPGEnc Authoring Works 4.0.9.37