iMac (24-inch, Early 2009) OS X El Capitan Version 10.11.6 (15G22010)
Am I able to upgrade my iMac to any other newer version by chance? The current version is very restricting to where its not letting me install any app from the app store. When I attempted to update my computer with the most up to date software, it's not allowing me either. I don't know what I'm doing wrong. Please advise.
iMac, OS X 10.11