This update fixes a color issue with HDMI displays connected to MacBook Air, resolves an issue with Windows which can prevent MacBook Air from booting properly, and also resolves an issue where unplugging a Thunderbolt device may cause the system to freeze when waking from standby.
The EFI update should be available in the Mac App Store for mid–2012 MacBook Airs and can also be downloaded from the Apple Support site.
Where? Not showing on Apple’s US website, nor Software Update :/
Ow, I wanted to say ” Now come on with new efi’s for the retina’s!”
sorry about that.