PLEASE BE SURE TO DELETE THE autorun plugin from your plugins folder if you are upgrading from a previous 1.3.5.x version!
Also, the menuConverter.exe file is in geek utilities for making some changes needed for the upgrade.
okay, this is a pretty radical change to geek.menu from a code standpoint, and is probably mostly a developer preview. the menu engine has been ripped out and replaced with a component which should be far easier to maintain in the future. unadventurous users should exercise caution -- this update uses a different configuration method, so previous category settings will be blown away. I'll try to post a settings converter in the next few days to help those upgrading.