Update list for System Optimizer
System Optimizer 7.5 estimated in February 2, 2010
-alpha release
System Optimizer 7.4 forthcoming in December 9, 2009
-7.4 beta release
System Optimizer 7.4 from November 24, 2009
New release.
System Optimizer 7.3 from August 6, 2009
System Optimizer 6.8 from December 4, 2008
