However, I have generated the access tokens successfully!
Following is the error which pops up in the suit log as I click on monitored folders option :
Using imap handler class: Imap2Handler
Wed Jan 4 15:41:26 2023 [FATAL] ImapHandler trying to use a non valid resource stream.
I’m afraid that route will prove exceedingly complex. It’s a very large PR with tons of changes, and you need to understand a lot about that code in order to get the parts that are relevant or applicable to your version.
I am quite sure that sorting out whichever update problems you have, and actually do the upgrade, will turn out to be simpler. But you can do as you prefer, of course.