The tense and exhausting hour Uhura had spent as the focus of the alien device had been worth it: Her quest across time had brought back not only their missing helmsman but also the future version of Chekov who'd helped Sulu survive a hellish future where the Gorn ruled the galaxy.

Still cue lots of the inevitable "I hate it", "bring back the old version", and "waste of licence fee" posts.

If you do something unbelievably stupid to that giant spreadsheet today, you can bring back the version you edited last week.

Bring back the old version.