The update itself has been fine, none of the nvidia issues that others have had (with a 1080 card).
I did have a couple pre-update issues:
I started getting the community.db errors for some reason this time
“error: failed retrieving file ‘community.db’ from : The requested URL returned error: 404”
Fixed that by following Update - error: failed retrieving file 'community.db'
Then I got a GPGME error “error: GPGME error: No data”.
Fixed that by following [root tip] [How To] Mitigate and prevent GPGME error when syncing your system
All good after that.