Extremely minor technicality, but one worth bringing up:

Ultraviolet shut down, but mainly because studios had already signed onto a shared locker service called "Movies Anywhere" that Disney did join. Ultraviolet libraries could be migrated over, for the most part.

That being said, it was a manual and voluntary process most consumers likely ignored or didn't participate in, so in essence it could be seen as a revocation of licenses. I did the migration and lost no titles, but it was the final nail in my personal arc that made me move wholesale to Plex + NAS (now Jellyfin + NAS).

Microsoft did this with its "Playsforsure" program.

Naturally it got shut down and your media no longer plays.

Maybe not mentioned in the comments, but it gets a full entry in the article.

What happens after the service shuts down?