Apple has released an update to Lion, bringing the OS version to 10.7.4. It includes a number of fixes, most notably that it patches a pretty serious FileVault bug.

Other notable fixes:

  • Resolves an issue in which the “Reopen windows when logging back in” setting is always enabled.
  • Improves Internet sharing of PPPoE connections.
  • Improves using a proxy auto-configuration (PAC) file.
  • Addresses an issue that may prevent files from being saved to an SMB server.
  • Improves printing to an SMB print queue.
  • Improves performance when connecting to a WebDAV server.
  • Includes 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 5.1.7, which contains stability improvements. It also includes a version check for the Adobe Flash plugin, so if you are using an outdated version of Flash, Safari will disable it.