Google Earth 4.2 - Release notes wanted, new icons

Google still hasn't updated the release notes for the new Google Earth 4.2. So I'm still discovering little things which have been updated in 4.2 from the last beta. We are well aware of some of the big changes like the new Sky and the new 3D photo viewer. But, I'm sure there are lots of smaller changes like the bug which kept the navigation gadget from going away when on automatic in 4.1 is now fixed. Last night, I noticed that the standard icons used for placemarks have changed. They are now more similar in style to the icons used in the layers and in Google My Maps. The image below shows the new choices (if you create a placemark and click on the icon button, this is what you see).

Click on the image above to see a comparison of the new images to the old.