Apple’s Mac OS X 10.7 Lion adds TRIM support; helps preserve SSDs

“This is welcome: OS X 10.7 Lion adds support for the TRIM command,” John Brownlee reports for Cult of Mac.

“The addition of this deep little function will mostly be of interest to new MacBook Air owners, as it’s essential to the long-term performance of an SSD drive,” Brownlee reports.

TRIM allows “Lion to inform the SSD which blocks of data are no longer considered in use and can be wiped internally,” Brownlee reports. “It’s welcome news to MacBook Air owners, as even the latest versions of Snow Leopard don’t support TRIM, and therefore tax the SSD more than is necessary.”

Read more in the full article here.

MacDailyNews Take: You can order SSDs in new MacBook Pro, iMac, and Mac Pro models, too, so this will be of interest to more Mac users than just us MacBook Air users.


  1. This is why Apple is Apple, and it’s why Apple is better then the rest. For this little things they add to the OS X, they’re always many steps ahead.

    Kudos to you Apple

      1. Okay, it’s still a feature. Do you expect every single piece of OS X to be an innovation or something? Whether the technology is new or not, it’s still new to OS X, thus a new feature. Stop trolling.

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