MacRumors.com

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Apple today released Performance Update 1.0, addressing hard drive pauses affecting a "small number of customers" on a number of different Mac models. The update is available in Snow Leopard (300 KB) and Leopard (322 KB) versions.

This update addresses intermittent hard drive-related stalls reported by a small number of customers. For detailed information on this update, please visit this website.

The support document outlines the procedure for applying the update and notes that it applies to the following machines:

- MacBook Pro (17-inch, Mid 2009)
- MacBook Pro (15-inch, Mid 2009)
- MacBook Pro (15-inch, 2.53GHz, Mid 2009)
- MacBook Pro (13-inch, Mid 2009)
- MacBook Pro (17-inch, Early 2009)
- MacBook Pro (15-inch, Late 2008)

- MacBook (13-inch, Mid 2009)
- MacBook (13-inch, Early 2009)
- MacBook (13-inch, Aluminum, Late 2008)

- MacBook Air (Mid 2009)
- MacBook Air (Late 2008)

- iMac (20-inch, Mid 2009)
- iMac (24-inch, Early 2009)
- iMac (20-inch, Early 2009)

- Mac mini (Early 2009)