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The Mac OS X 10.5.5 Update is recommended for Mac OS X Leopard versions 10.5, 10.5.1, 10.5.2, 10.5.3 and 10.5.4 Leopard, and according to Apple includes general operating system improvements that enhance the stability, compatibility, and security of your Mac.
To update to Mac OS X 10.5.4, you have the option of using Software Update or a standalone installer - the latter being my recommendation. The standalone installer is available in incremental "Delta" version that lets you update from Mac OS X 10.5.3 to 10.5.4, and comprehensive "Combo" version that lets you update from Mac OS X 10.5, 10.5.1, 10.5.2, 10.5.3, or 10.5.4 to 10.5.5, However, I also recommend using the combo updater even if you're only moving up one notch from OS 10.5.4 to OS 10.5.5.
To Use a Standalone installer:
Download the update installer and run it manually. This is also 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.
The Mac OS X 10.5.5 delta update (316MB) lets you update from Mac OS X 10.5.4 to 10.5.5.
The Mac OS X 10.5.5 Combo Update (601MB) lets you update from Mac OS X 10.5, 10.5.1, 10.5.2, 10.5.3 or 10.5.4 to 10.5.5.
You can get 'em at:
http://www.apple.com/support/downloads/
To use Software Update (if you must):
Choose Software Update from the Apple menu to automatically check for the latest Apple software using the Internet, including this update. (Software Update might have linked you to this article to learn more about the update.) If your computer is not up-to-date, 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 more than once to make sure you have all available updates.
What's included in the OS 10.5.5 Update:
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 (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.
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.
- 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).
I'm certain there is more than that, and I'm hoping for some more general refinement as well.
Mac OS X 10.5.5 Combo Update - 601MB
Mac OS X 10.5.4 Update Delta - 316MB
Mac OS X Server 10.5.4 - 341MB
Mac OS X Server Combo 10.5.4 - 729MB
Download site:
http://www.apple.com/support/downloads/
or
http://www.apple.com/support/downloads/macosx1055update.html
For more information, visit:
http://support.apple.com/kb/HT2405
Charles W. Moore
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