Article Edit Date

Would like to be able to have original published, and edit dates available to people who read articles.

This is important because when you're dealing with tutorials and the ever changing landscape of the technology: Some articles become out of date within days and you need to go back and change them.

I don't mind this, but it'd be nice to not have to remember EXACT dates of original publishing. This gets hard when I have 6+ month old articles that need rewriting, updating or clarifying.