Apple Releases Mac OS X 10.7.4

Apple has released the next major update to the Mac operating system, OS X Lion 10.7.4, bringing with it a host of improvements and fixes to Lion. The update is for all users of OS X Lion and fixes a number of issues with Lion including improvements to internet sharing, SMB print server connections, RAW image compatibility and support for third party USB keyboards. The release notes are detailed below.

  • 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.

As always, back up your system using either Time Machine or some other backup management software prior to the installation of the update. We’ve seen the size of the downloads vary wildly, weighing in anywhere between 320MB up to 750MB depending on the system.

The update is available through Software Update right now.


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  • immovableobject

    “Apple has released the next major update to the Mac operating system…”

    I disagree with your characterization.  A MAJOR update would be 10.8 Mountain Lion.   This is just a minor bug fix patch, welcome though it is.