Software Update no longer available in Mac OS X v10.3 and earlier
Learn about how automatic Software Update no longer works in Mac OS X v10.3 and earlier.
Mac OS 9.0, Mac OS X 10.0, Mac OS X 10.1, Mac OS X 10.2, Mac OS X 10.3
As of July 23, 2012 (23-07-2012), the Software Update service feature of Mac OS 9 through Mac OS X v10.3 is no longer available, but you can manually download updates if you need to.
Note: Automated checks for updates should not display an alert message, but manually checking for updates via Software Update on computers running Mac OS X v10.3 or earlier may display an alert indicating "timeout" or "connection failure" issues. This is expected behavior. Automatic software updates for these OS versions are no longer available.
For Mac OS X v10.0 through 10.3, you can search Apple's Support Downloads website to manually download update installers. Simply search for updates for your OS version, such as "Mac OS X v10.3 update". You can also click the site navigation icons for "Mac OS and Software", then click "Mac OS", and finally click "Earlier Products".
Mac OS 9 updates
For Mac OS 9, you may be able to find updates with the Apple Support Advanced Search. Be sure to select "Downloads" from the "Restrict by document type" pop-up menu, and select "Include Archive" from the Archived Documents pop-up menu.
Here are direct links to some Mac OS 9 updates:
If you wish to turn off automatic Software Update checks, you can change the Software Update settings in System Preferences or Software Update itself depending on your Mac OS version.