Apple brings Gatekeeper to OS X Lion with 10.7.5 update

20 September, 2012 - Killian Bell
OS X Mountain Lion logo

Following the release of iOS 6 and OS X Mountain Lion 10.8.2 on Wednesday, Apple rolled out a software update for users still running OS X Lion, the company’s last generation desktop operating system. This update introduces Gatekeeper, Apple’s new security feature, and improves the stability, compatibility, and security of your Mac.

If you’re still running Lion and you’re not too familiar with Gatekeeper, it’s a new security feature that aims to prevent malicious software from being installed on your Mac. You can customize it to allow apps downloaded only from the Mac App Store, from the Mac App Store and from identified developers, or from “anywhere.”

Gatekeeper Settings

Of course, the first two options will prevent your machine from installing any software you may have picked up on the Internet unknowingly, such as the recent pieces of malware that were found to be affecting hundreds of thousands of Macs. You can activate it if you’re worried about accidentally installing things that may harm your machine.

The complete list of changes and improvements in this release includes:

  • Resolve an issue where icons in Launchpad may get rearranged after a restart
  • Improve Wi-Fi reliability for iMac (Late 2009 and newer)
  • Resolve an issue using Spotlight to search an SMB server
  • Improve compatibility connecting to Active Directory servers
  • Address an issue playing audio when a MacBook Air (Mid 2012) is connected to a Thunderbolt display
  • Improve Active Directory clients updating computer password and DNS records
  • Correctly update the keychain when changing an 802.1X password
  • Address an issue that could cause text input fields to appear black in some applications
  • Preserve iCal events when migrating to Microsoft Exchange Server 2010
  • Enforce managed preference based on a user’s primary group
  • Address an issue accessing secure websites when using a web proxy
  • Improve compatibility with RSA token used to authenticate with 802.1X networks
  • Improve compatibility with Centrify DirectControl authentication
  • Enable automatically logging into an NIS account
  • Support email addresses
  • Resolve a video issue with some VGA projectors when connected to certain Mac notebooks

You can download the update now by clicking on ‘Software Update’ in your Mac’s menu bar, or by opening up the Mac App Store and clicking on the ‘Updates’ tab.

About the author

Killian Bell is a freelance journalist based in Worcestershire UK. In addition to writing about all things Apple, he's one of the co-founders of the football site TitleTalk. You can follow him on and Twitter.