Change journal date format doesn't change previous journal pages?

Hello,
I’d like to change journal date format, but I found that after changing it logseq doesn’t automatically update the old journals. While this will not mess up old references etc, I feel there must be some utilities to also convert old journals, thus I post here and if someone knows how to convert I really appreciate it.
Thanks!

If I am not mistaken, Logseq will rename the old pages for you if you Re-index the graph.