Google maps was updated to version 5.4.0. It has a few changes, and here they are below:
  • View your Google Maps searches in Google Web History for your account.
  • See additional business details for each search result on the map
  • Report “destination not here” in Navigation (Beta)

It's nothing too dramatic, but I really dig the History feature. There have been times when I wanted to take the same or similar vacation or business trip that I did previously, and I ended up having to do the research "legwork" all over again. This makes duplicating trips much easier.

Source: TalkAndroid and AndroidMarket