Adobe has released an update for Illustrator, which addresses a number of stability issues including a problem with the program reporting not enough memory on Macs with greater than 4GB, Glyph panel glitches, and crashes at launch and quit.
The list of major changes are the following:
Out of memory problems specific to Macs with RAM exceeding 4gb, including failure of shortcut keys, rulers, or file open have been addressed.
Glyph Panel issues have been addressed.
Several crashes occurring at launch or quit have been addressed.
A crash when traversing a variable data set containing linked images has been addressed.
An issue with white lines appearing on rasterized gradient mesh objects has been addressed.
To install, be sure you have antivirus software disabled, and run Adobe's auto-updater, or access the installer from the Adobe Illustrator update page. Also be sure to fully back up your system before updating, either with a drive clone or Time Machine backup, so you can fully restore the system if necessary.