Alot!
If you go to the site:
http://www.snesgamemaker.gamehacking.org/And click on "Download" it will take you to a post by me with a changelog as well as an attachment with the installer.
The main aim of the version has been to fix up what is already there and add in the simple stuff that every program needs, such as an "About" window but also I have added in some very useful things such as support for variables and plently of examples of them being used!
I don't want to spoil
all the new features for you, so look there yourself!
I hope you enjoy it!
-YoshiInAVoid-