We're going through an upgrade cycle, from 7.13.6 to 8.20, we have a plug in called agility checklist (with Definition of Ready & Definition of Done) of which is end of life and support and we cannot get an update of this plug in or a license etc.
our business needs some sort of functionality like agility checklist, this is stopping us upgrading and therefore putting us at risk.
I have 2 options I see fit but not sure how to finish them off
1. extract & import the the data using rest/api from agility checklist to a custom field (success criteria)
2. extract & import the data using the PostgresQL DB from agility checklist to a custom field (success criteria)
I need to keep all historical data
any help would be greatly appreciated, this is stopping an essential upgrades and maintenance.