I just release PowerPhotos 3.1.3 today, which is mostly bug fixes, but has two new minor features for working with your Photos libraries.

First, I added "Copy To" and "Move To" items to contextual menus as another option for copying/moving photos and albums between libraries.

I also added the ability for PowerPhotos to help automate upgrading your libraries after upgrading to a new version of macOS/Photos.

Hope folks find these additions useful, you can read more at https://www.fatcatsoftware.com/comments/powerphotos_313_copy_move_upgrade/