Software Update Alert! Performance Update 1.0 available for download

Our sharp-eyed iPhone goddess, Erica Sadun, alerted us to the fact that there's a small, but potentially important, update that has just shown up in Software Update.

Performance Update 1.0 "addresses intermittent hard drive-related stalls reported by a small number of customers." It may not show up for you, unless you have one of the following Macs:

MacBook Air (Mid 2009), MacBook Pro (17-inch, Mid 2009), MacBook Pro (13-inch, Mid 2009), MacBook Pro (15-inch, Mid 2009), MacBook Pro (15-inch, 2.53GHz, Mid 2009), iMac (20-inch, Mid 2009), MacBook Pro (17-inch, Early 2009), MacBook (13-inch, Early 2009), MacBook (13-inch, Mid 2009), MacBook (13-inch, Aluminum, Late 2008), MacBook Air (Late 2008), MacBook Pro (15-inch, Late 2008), iMac (24-inch, Early 2009), iMac (20-inch, Early 2009), Mac mini (Early 2009)

If you own one of these models, be sure to load the update at your earliest convenience, especially if you have experienced the problem described in the update notes.

Thanks to Erica and to Joachim Bean, who provided the link to the Apple KB article.
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