
Officially, the MacBook Air 6,2 can be upgraded up to Catalina (10.15). However, some users reported 4GB RAM being not enough for recent Mac OS X versions. It should run without problem a system like Windows 10. The generous graphic card, the SSD and the relatively fast processor should still make it a very decent computer for office use.

500 GB SSD (replacement from 256 GB original one).I'm looking for feedback from those who actually upgraded their MacBook Air 6,2 (mid-2012) with i5 and 4GB RAM to any of these versions: El Capitan / Sierra / High Sierra / Mojave. I want to upgrade it to a newer version, without compromising performance, as I want the buyer being happy with his purchase.

It is currently running OS X 10.7 Lion (for which Safari is obsolete). I have a mid-2012 MacBook Air 5,2 (13'' A14) that I plan to sell.
