[Shadekeep]

One further change, map resizing is now non-destructive. If you shrink the map it will keep what it can and just trim from the right or bottom edge. If you expand the map it will simply add new blank tiles to those edges.

I can see where the ability to selectively crop a map may be useful in future as well, in case you want to retain the map from an arbitrary point instead of the upper-left corner.