Hi @Tom_Graham, I believe whenever app maker makes substantial changes from the previous version, this message is shown instead of showing very large amount of changes.
You may find this relevant post referenced
below useful.
plus.google.com - I had to revert to an earlier version of my app due to some self-inflicted er… I had to revert to an earlier version of my app due to some self-inflicted er… plus.google.com
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