@bozhidar I've been thinking of upgrading - but I'm on 0.12.0 (and been very happy). Any bombs or gotchas going from 12 to 16?? Many thanks in advance!

Should be a smooth sailing IMO. Nothing really major changed in the past few releases, but you’d certainly get plenty of goodies and bugfixes.

I’d suggest just going over the “Changes” sections of the changelog https://github.com/clojure-emacs/cider/blob/master/CHANGELOG.md to be prepared for… changes 🙂