Apple has released an EFI Firmware Update 2.6 for mid-2012 MacBook Air models. The update fixes several annoying bugs that have been reported in Apple's online help discussion forums. From Apple's knowledge base article:
About MacBook Air EFI Firmware Update 2.6
This update is recommended for MacBook Air (mid 2012) models.
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.
As usual, the EFI firmware update weights in at a tiny 4.76 MB. Be sure you have your MacBook Air plugged into its power supply when installing the
