Upgrade tool

This module add the ability to upgrade configs and log manual config changes.
It tracks changes to configs during manual config editing or hook_update_N and provides a dashboard which could be used to rollback changes if not needed

How it works

Presentation(*english language)

A few topics that are covered:
- How upgrade path problems were solved in the distribution of OpenY
- Separation of the openy_upgrade_tool module into a contrib project
- Problems to be Solved