Apple has released a new EFI Firmware Update for its MacBook Air, bringing the update’s version up to 2.1 and adding some fixes and enhancements for Thunderbolt Displays and Target Disk Mode compatibility, as well as Lion Recovery performance when used with an Internet connection in order to re-download OS X Lion from Apple’s servers. This update is exclusively for the 2011 MacBook Air models.

Apple has issued firmware updates for the unibody notebooks, including MacBook, MacBook Pro, and MacBook Air. All models have two firmware updates available, EFI and SMC, both of which require system restarts.

To get the latest firmwares, launch Software Update from the Apple menu in the top left corner of your screen. Updates will be downloaded and installed, but it’s a little different then a normal software update.