Written by Topher Kessler
When you run the Software Updater in OS X, the system will present the latest updates for your system. While this is handy for most people, many times people will not want to update to the latest version for compatibility reasons, and instead may wish to install a version or two prior to the current one.
Apple discussion poster "slowfish" writes:
"I had problem with 10.5.8 so I just installed new OS. Mine is 10.5 now. Can I down 10.5.7 patch and install it? It say i need 10.5.6 patch. Does anyone know how to do it?"
With every update, Apple provides a "combo" updater that includes all changed files from the initial release of the operating system version. This makes it convenient for people to quickly upgrade after a reinstallation without having to apply patch after patch to the system.
While you cannot use a combo updater to downgrade a version of the OS to a previous one, you can select from the library of combo updaters to bring a fresh installation to the version you would like, without immediately going to the latest version that Software Update will present by default.
Apple keeps every combo updater available for download on their support website, which can be searched through for the specific version needed, but for convenience and to prevent any confusion with "delta" updaters, here are the download and information pages for each Leopard combo update:
Topher has been an avid Mac user for the past 10-15 years, and has been a contributing author to MacFixIt for just over a year now. One of his diehard passions has been troubleshooting Mac problems and making the best use of Macs and Apple hardware both for family and friends, as well as in the workplace. He and the newly formed MacFixIt team are hoping to bring enhanced and more personable content to our readers, and keep the MacFixIt community going here at CNET. If you have questions or comments for Topher or the other MacFixIt editors, feel free to contact us at http://www.macfixit.com/contactResources