Mac OS X 10.5.5

Mac OS X 10.5.5 is an update for Mac OS X 10.5 (Leopard) that was released by Apple on September 15, 2008.
==Updates==
===General===
*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.
*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.
===iCal===
*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.
===Mail===
*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.
===MobileMe===
*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).
==External links==
*Apple: About the Mac OS X 10.5.5 Update
Category:Mac OS X 10.5
Category:2008 introductions