What's New:

  • This update fixes several sleep/wake issues to improve the stability of MacBook Air (Mid 2012) computers and is recommended for all users running OS X v10.7.4.
  • It also enables Power Nap support for users running OS X v10.8 or later.

When your compatible Mac goes to sleep in Mountain Lion, Power Nap still gets things done silently

  • Mail. Receive new messages.
  • Contacts. Your Contacts update with any changes you may have made on another device.
  • Calendar. Receive new invitations and calendar updates.
  • Reminders. Reminders updates with any changes you may have made on another device.
  • Notes. Notes updates with any changes you may have made on another device.
  • Documents in your iCloud account. iCloud pushes any edits you made to a document to your Mac notebook.
  • Photo Stream. Your Photo Stream updates with new photos from your iPhone, iPad, or iPod touch.
  • Mac App Store updates. Your Mac notebook can download updates from the Mac App Store.
  • Time Machine backup. Your Mac notebook can back up while it sleeps.
  • Find My Mac. Locate a lost Mac notebook even when it's sleeping.
  • VPN on demand. Corporate email updates securely.
  • Configuration profile. Macs in managed environments can receive configuration profile updates.