@AmeliaBR @Meyerweb That would be great. Just two weeks ago I did an experiment with a friend. He created a post, and waited for everyone to see it. Then he made an edit to the post and let everyone know what the change was. Even after days none of us saw any change to the original post.
At best, it appears that edit functionality is spotty. Until that improves I'd consider it a dangerous function to use.
@shuttersparks I've certainly seen edited toots from other instances, and I've received notifications (from other servers) when a post I liked/boosted is later edited.
I'm sure there is some caching delay, and maybe there were issues early on with incomplete support, but most servers do now seem to propagate edits to posts.
@Meyerweb