The latest update, according to the Apple App Store, just brings "performance improvements and bug fixes" - nothing more, nothing less. However, eagle-eyed plussers will quickly notice the app now has the new icon that came out a few weeks ago, as part of Google's overall rebranding.
Now don't you just wish that Google said more in their update descriptions, even of being vague and generic? A clear and detailed explanation of what the update consists of, even if it would get a bit on the technical side, would be much more informative than the all-too-common "performance improvements and bug fixes."