This was the headline that ran on Hacker News, that bastion of online integrity:
Hold on, I thought, Atom 1.0 was released a decade ago. Atom is a syndication format designed to reign in the numerous incompatible versions of RSS, though they had enough of a sense of humour to release multiple versions themselves (WordPress exported Atom 0.3 and 1.0 feeds at the time).
Yes, this is for the Atom text editor, based on "web technologies" (oh dear).
Whoa, I don't think I've ever sounded this old before. I may still be in my twenties for now, but get off my lawn!