(This is a follow-up to How to improve old, slow iMac -- new SSD? Or more RAM?)
I replaced the HD on our old 2008 iMac 8,1 with an SSD, and it seems much faster. However, it was running 10.9; now it's on 10.7.4 (which was already on the SSD.)
Should I install 10.9 like the App Store suggests? Or keep the version at 10.7.4?
It only has 3GB of RAM.