[Zubersoft]

A sync will never be allowed if there is an incompatibility - the application will warn you and prevent it. With a library restore, you can certainly run into more issues. MobileSheets does not check if the backup file contains an incompatible database. That's something I may have to fix at some point. I will try to make sure I include information in the release notes if the database changes. I try to change it as little as possible (it's been a long time since I modified it). Also, when adding new fields in a table, I can often provide a default value for the field meaning it's backward compatible.

Mike