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About the OS X Lion v10.7.4 Update

Learn about the OS X Lion v10.7.4 Update.

The OS X Lion v10.7.4 Update is recommended for all OS X Lion users and includes general operating system fixes that improve the stability, compatibility, and security of your Mac.

Updating your system

You should back up your system before installation; you can use Time Machine.

Do not interrupt the installation process once you have started to update your system. You may experience unexpected results if you have third-party system software modifications installed, or if you've modified the operating system through other means.

Choose Software Update from the Apple () menu to check for the latest Apple software via the Internet, including this update.

Other software updates available for your computer may appear, which you should install. Note that an update's size may vary from computer-to-computer when installed using Software Update. Also, some updates must be installed prior to others, so you should run Software Update until Software Updates states "Your software is up to date".

You can manually download the update installer. This is a useful option when you need to update multiple computers but only want to download the update once. These versions of the standalone installers are available from Apple Support Downloads.

Additional Information

What's included?

The OS X Lion v10.7.4 Update includes fixes that:

  • Resolve an issue in which the "Reopen windows when logging back in" setting is always enabled.
  • Improve compatibility with certain British third-party USB keyboards.
  • Addresses permission issues that may be caused if you use the Get Info inspector function "Apply to enclosed items…" on your home directory. For more information, see this article.
  • Improve Internet sharing of PPPoE connections.
  • Improve using a proxy auto-configuration (PAC) file.
  • Address an issue that may prevent files from being saved to an SMB server.
  • Improve printing to an SMB print queue.
  • Improve performance when connecting to a WebDAV server.
  • Enable automatic login for NIS accounts.
  • Include RAW image compatibility for additional digital cameras.
  • Improve the reliability of binding and logging into Active Directory accounts.
  • The OS X Lion v10.7.4 Update includes Safari 5.1.6, which contains stability improvements.

For information about the security content of this update, please visit: http://support.apple.com/kb/HT1222.

Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple’s recommendation or endorsement. Please contact the vendor for additional information.
Last Modified: May 9, 2012
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  • Last Modified: May 9, 2012
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