Several weeks ago, we released version 5.1.7894.7252 of the Google
Earth Plug- in, compiled against existing version 1.003 of the Google
Earth API. The only notable change in this release was:
Support for Mac OS X 10.6 (Snow Leopard) and 64-bit Safari on Mac.
This will soon be reflected in the release notes:
http://code.google.com/apis/earth/documentation/releasenotes.html#2009-12-16
The vast majority of the install base on both Windows and Mac should
be updated to the new plug-in version at this time. All new plug-in
downloads and installs will be of this new version.
Lastly, we apologize for the delay in posting release information.
Thanks,
Roman