I would like to upgrade to 1.5 but the App Store says everything is up to date and I can not find an "upgrade/update" menu command.
Is it because my iMac is getting a bit old?
Model Name: iMac
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 4 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: IM71.007A.B01