How can one change the name of a tag?

Question

I have made a tag in mercurial:

hg tag release_123

Later on I found out that the name was wrong, it should be release_124. Is it pos

Answer 1

You should be able to edit regular tags in the .hgtags file (and commit it)

A "regular" tag (with no special specifier) is revision controlled, does propagate with other changes, and lives in the .hgtags file in a repository.

This old thread mentions you need to do this in all HEADS of a repo though.