Apple Software UpdateEarlier today Apple released Performance Update 1.0 for both Mac OS X 10.5 Leopard and 10.6 Snow Leopard.

This update addresses intermittent hard drive-related stalls reported by a small number of customers and covers the following products:

  • 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)

Visit this support page for full details about this update.