So far my website has only ever had published dates, however today that changes. I don’t often update posts so it hasn’t been a high priority for me. However, I do have several pages where I maintain content (My about, now, using and indieweb pages). Until now I’ve just manually typed in the month year that I last updated those pages. Today I added support for having an updated date within the actual post object where it can sit beside the published date and be picked up using microformats.
It’s not much, but I like the addition.