We are currently in 8.4.0 version and wanted to migrate to 8.4.6 latest patch. We were successful in updating it sandbox environment and seems to be most of the application seems to work as is.
We are doing inplace uplift with having application down time, no (high availability). We just took DB backup before running the DB patch.bat.
But I have couple of queries
1. If I want to revert back from 8.4.6 to 8.4.0 version for some reason(say corner case functionality break/some thing major functionality break). Is there any option that PEGA has internally? Or we just need to revert to the earlier DB backup taken?
2. And I believe while upgrading there is no separate jar packages that we get as delta from 8.4.0 to 8.4.6? I believe we have to rerun the complte 8.4.6 package with just the generating the new ddl's and running the patch.bat --> which internally calls the upgrade.bat.
***Edited by Moderator Marissa to update Capability tags***
Pega will be having some deadline, after patch upgrade completed and if you want to revert patch upgrade and have older version then you could talk with SR team, SR team will revert back the patch upgrade changes.. I am thinking the deadline time would be 7 days.
I am not sure DB backup will help in revert backing the patch upgrade, because upgrade will have some infrastructure level changes also.. You could check DB backup process also with SR team..
And in this scenario, since it is patch - 8.4.0 to 8.4.6 & vice versa , there is no updated ear. So infrastructure changes are unlikely (at least for my scenario it is not needed). And DB backup definately helps in reverting for sure, but was interested to know if there are any other PEGA options.