Quote from Tom Holden on 2023-03-01, 3:41 pm

Having seen a post somewhere about updating the LDS Temple List in RM7 and, sooner or later since the release of RM9, in RM8, I had a look at what may be involved. Turns out that it could be complex and the number of changes between v7 and 9 is quite large.

Temples are stored in the PlaceTable with PlaceType=1.

1. New temples could readily be added by copying from a current RM9 database.
2. Temples that have moved are a bigger challenge. It looks like they get a new PlaceID so it might suffice to just copy them as well and let the user merge the old and the new locations as needed (if their UI allows). To transfer LDS events to the new locations is beyond me because I cannot see them, not being a member.
3. Temples that have closed could be left in the PlaceTable and up to the user to move associated events.
4. Temples whose names, locations and PlaceID have changed cannot have events programmatically transferred without a cross-reference between old and new.