One of our readers Paul spotted a new version of Google Maps on the Google mobile page. Once again there is no changelog for the latest version but I can confirm it does work. I recommend not updating if things are working for you with the older version.
So far reports have shown no significant changes worth updating. Maybe this was just a maintenance release. Thanks Google for the great documentation!
If you really have to have the latest you can pick it up OTA at http://google.com/glm