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Firmware Updates for iMac, MacBook Pro, and MacBook Air

Apple has released another batch of firmware updates similar in scope to the trio of updates from several weeks ago (see “Firmware Updates for Mac mini, MacBook, and 13-inch MacBook Pro,” 25 January 2012). The new iMac EFI Firmware Update 1.8 (mid 2010 models), MacBook Pro EFI Firmware Update 2.6 (early 2010 models), and MacBook Air EFI Firmware Update 2.3 (late 2010 models) updates, like the previous set, enable Lion Recovery from an Internet connection (and all of them require Mac OS X 10.7.3 or later). Additionally, the MacBook Air update fixes an issue where the system could restart if the power button was pressed while waking from deep sleep. As with any firmware update, you should read the installation instructions carefully before installing. To ensure you get an update only if it’s necessary, we recommend relying on Software Update; if an update doesn’t appear for you, it’s not appropriate for your Mac. (Free, 3 MB)

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