None of the patch changes should touch areas you may have touched.
I would suggest just going through the patch notes for newer versions and simply implementing the changes as described and shown. It’s very straight forward.
If you are having issues with moving items around then that’s not something with the ARPGIS but because of changes made in your project to the ARPGIS. Drag and drop of and using items has never had any updates since release. If you can give me a more detailed description of the issue in your project it can help me see where something may have been changed and point you in the right direction.