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Summary:

Apple has released what it calls “Performance Update 1.0,” an update to its Mac OS X 10.5 (Leopard) and 10.6 (Snow Leopard) operating systems for selected iMacs and MacBooks. As Apple describes it — in typically brief fashion — in its Support pages, “This update addresses intermittent […]

software-update

Apple has released what it calls “Performance Update 1.0,” an update to its Mac OS X 10.5 (Leopard) and 10.6 (Snow Leopard) operating systems for selected iMacs and MacBooks.

As Apple describes it — in typically brief fashion — in its Support pages, “This update addresses intermittent hard drive related pauses reported by a small number of customers.”

Gotta love those detailed descriptions!

The update may be related to an EFI Firmware Update in June that some MacBook owners suspect was the cause of intermittent crashes and system freezes. This latest update may well put these problems to rest once and for all, except there’s something interesting about the name…that 1.0 suffix hints at the possibility of further revisions to come. A “Performance Update, Update” perhaps?

The update isn’t for everyone, however. It applies only to the following Mac models.

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

MacBook Pro
MacBook Pro (15-inch, Late 2008)
MacBook Pro (17-inch, Early 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)

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

Mac Mini
Mac Mini (Early 2009)

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

  1. Well.. I’m one of the “small number of” clients who’s looked a lot of times at spinning beachballs in Safari and Spaces…

    I’m curious how small this number of systems actually is, that was affected. Almost every laptop they sold for the last year is on that list!

    Still: Thank you Apple – you made me happy again!

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  2. I am also one of the “small number” i hope this does it! Its been so bad i couldnt talk about it to my windows faithfulls!

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  3. I’m so glad they came up with a fix for this, but the “small number” is a filthy lie. I have two friends who also have Macbooks from the list above, and both of them also get persistent beachballs like I do.

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  4. Is two a big number?

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  5. Are these intermittent stalls why disk utility has been freezing on me? :S

    Hope this works!

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  6. Superb piece of news!!! I have a MacBook Pro (15-inch, Late 2008) and I was already planning to report a bug about it being sluggish. Because for me, my Mac became much slower with Snow Leopard compared to when it originally had Leopard.

    Switch User was always choppy, login was slow. Will see, how this update would help my situation.

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  7. I have a system that is not on this list, and the fix did not appear in my recent system updates.

    Since Snow Leopard I have noticed that my hard drive sometimes spins down and can not be revived. This takes down the applications one-by-one and only a reboot can fix it.

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  8. I also had issues with my Pro 15″ Just installed update and we’ll see – My Apple Techie was great in trying to find out the problem and getting back to me promptly to tell me to watch for this update. Fortunately we were only slowed down for about a month. Let’s keep our fingers crossed!

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  9. Just installed the update, and now the hard drive stall are much less intermittent than they used to be. What’s up with that, yo?

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  10. Installed the update, computer was better for a few days and now it has actually gotten worse.

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