OpenAtlas

• Presentation sites can be linked in the backend (#2096)
• IIIF: Check for orphaned files (#2108)
• Solve confusing actor relations at move event (#1834)
• Refactor and minor improvements (#2112)

A complete list of changes is available here: 8.0.0.

News for admins
This is a major upgrade which utilizes newer versions of underlying software (see #2038).
There are breaking changes so be sure to read the upgrade notes carefully before.