Updating a 2012 Mac desk computer to OS BigSur
I think I can not update from OSCatalina to OSBigSur11 from what I have read. Is there anyway that I can? It's a late 2012 21.5" desk Mac (not sure if Pro or not). Processor 2.7 GHz Quad-core Intel Core 15. Memory 8GB 1600 MHz DDR3. Thanks
iMac 21.5″, macOS 10.15