Are there any gotchas when upgrading from 9.55 to 16.2.1? We have a tab called LOOP which I think has been scrubbed/replaced. We are in the process of migrating to Lightning. Thank you!
@i_consult_sfdc As there has been a lot of changes I would recommend updating in a sandbox first and making sure you test your document packages. I have seen people update from some really old versions without issue, so nothing in particular.