I don't know what version I was on pre-update, but I would expect it to have been the immediately previous one - would that be 29.0.0? However, until 29.0.1 arrived all was as I've had it for ages prior, so maybe I went straight from 28 or less to 29.0.1.
I've got it back to my preferred settings now, apart from the tabs being greyed out and hard to read.
There's also an annoying little "jump" when I switch tabs. Just perceptible, but makes me feel giddy when I toggle from one to the next. Must be my age
(or the vino).