Apple releases MacBook Air EFI Firmware Update 2.1 with Thunderbolt Display support

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Apple has issued an firmware update for new MacBook Air models that contains enabling support for the as yet unavailable new Thunderbolt Display.

The update for mid 2011 Thunderbolt MacBook Air models "resolves issues" with the new Thunderbolt Display and improves the performance of notebooks when operating in Thunderbolt Target Disk Mode.

The update also "includes fixes that enhance the stability of Lion Recovery from an Internet connection."

Apple notes that "After this update has successfully completed, your Boot ROM Version will be: MBA41.88Z.0077.B08.1109011050."

Apple originally announced the Thunderbolt Display alongside the new Thunderbolt MacBook Air models in July.

The new 27 inch display is the first to incorporate Thunderbolt cabling, which it uses to provide a single signal cable that supports video, audio for its built in speakers, and a digital interconnect for the display's three USB 2.0 ports, one FireWire 800 port, one Gigabit Ethernet port and a Thunderbolt port for daisy chaining up to five additional Thunderbolt devices.

MacBook Air models support one Thunderbolt display, while 2011 MacBook Pro notebooks and other Thunderbolt-based Macs with discrete graphics can support two of the displays.

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