I had a company use this as a scare tactic, I think.
They emailed me with an "update on my offer" only to make me wait an entire day for them to say that a lot of other people were accepting their offers and that I should hurry up. I thought it was rescinded for an entire day.
It's nice to know that Google is consistent in the use of the phrase "An update on...". If you see this, it's dead.