There's an update for OpenOffice that has just been released, 2.4.1. It's a good idea to install this as it does include a security fix.

The easiest way to do this is to click on the small icon with a green arrow point down at the top right of the screen.

This starts the update wizard, which is easier than checking for versions. Alternatively you could jump straight to the OpenOffice download page.

The other thing in the email that caught my eye was the information about professional support for OpenOffice. It costs $20 per incident but given that OpenOffice is free in the first place it's still a good deal.