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Mac OS X Update 10.5.5

Apple released Mac OS X Update 10.5.5. It is available from the Apple Software Update. The update include many fixes including the following:


  • Includes recent Apple security updates.
  • Addresses stability issues with video playback, processor core idling, and remote disc sharing for MacBook Air.
  • Addresses an issue in which some Macs could unexpectedly power on at the same time each day.
  • Resolves a stability issue in TextEdit that could be found when accessing the color palette.
  • Improves Spotlight indexing performance.
  • Fixes an issue in which contacts might not sync properly with PalmOS-based devices.
  • Improves iPhone sync reliability with iCal and Address Book.
  • Includes improvements to Active Directory (see this article for more information).
  • Improves Speech Dictionary.
  • Fixes Kerberos authentication issues for Mac OS X 10.5 clients that connect to certain Samba servers, such as Mac OS X Server version 10.4.
  • Includes extensive graphics enhancements.

Address Book

  • Addresses stability issues that may occur when creating a Smart Group.
  • Resolves a printing issue with address cards containing information that spans more than one page.

Disk Utility and Directory Utility

  • Improves reliability when rebuilding a software mirror RAID volume in Disk Utility.
  • Improves reliability of server status displayed in Directory Utility.


  • Updates iCal to more accurately handle repeating events.
  • Improves performance when choosing meeting attendees.
  • Resolves an issue in which the “Refresh All” option may be dimmed (“grayed out”) in the contextual menu for certain calendars.
  • Fixes issues with read-only calendars.
  • Addresses an issue that prevents an invitee from moving an event to a different calendar.
  • Resolves an issue with syncing published calendars.


  • Addresses performance issues related to displaying IMAP messages.
  • Resolves an issue with SMTP settings for AIM, Compuserve, Hanmail, Yahoo!, and Time Warner Road Runner email accounts.
  • Addresses stability issues that may occur when dragging a file to the Mail icon in the Dock.
  • Addresses an issue with the “Organized by Thread” view in which the date does not appear when the thread is collapsed.
  • Resolves an issue in which RSS feeds could temporarily disappear from the sidebar.
  • Improves Mail robustness when sending messages.
  • Improves reliability when saving drafts that have attachments.


  • Improves overall sync reliability.
  • Improves Back to My Mac reliability.

Time Machine

  • Improves Time Machine reliability with Time Capsule.
  • Addresses performance issues that may affect initial and in-progress backups.
  • Fixes an issue in which an incorrect alert message could appear stating that a backup volume does not have enough free space.
  • Time Machine can now back up iPhone backups that are on your Mac, as well as other items in (~/Library/Application Support).

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