I'm aware but currently got my head stuck in the sand!
I don't use many customisations, I have 7 add-ons and 5 will be broken
@Dray, yes and know, many developers are not going to write add-ons that are compatible with 57 onwards, it's far to much work, and so locked down that some could not be done anyway.
The biggest one I will miss is tab groups, but I think there may be some hope with that one.
PS. I don't seem to be able to turn updates off, the options are greyed out