New version of some text editor

John Gruber writes about new release 10 of text editor BBEdit:

I’ve been beta-testing 10 for months and at this point I couldn’t bear to go back to version 9.

Wow!

I would hate an editor that come a new release puts you in a position to say things like that. I am pretty sure I could go back to Emacs 19.3? from 1996 at any time if only people ceased to send me files in Unicode.