Haha, yeah, it's the hummingbird, and while I didn't heard about until today, what makes Google updates fun is the "folkloric" names they choose for these actions.
Man, I would call it 2013 last quarter update or something more serious than "hummingbird," "panda," "penguin," giraffe, elephant, crocodile, or whatever fauna they bring to the online world.
Other than the above comment, I have little to say about Google updates because I don't really care. I work diligently in promoting my website through different channels (including offline means) so my traffic is not 100% dependable on organic traffic that Google could send.