Apple concurrently announced its intent to release the first x86-based computers in June 2006, and to move the rest of its computers to x86 microprocessors by June 2007. Jobs then disclosed that Mac OS X had been engineered from its inception to work with Intel's x86 line of processors in addition to the PowerPC, the CPU for which the operating system had always been publicly marketed. On Jat the WWDC in San Francisco, Jobs reported that nearly two million copies had been sold in Mac OS X 10.4 Tiger's first six weeks of release, making Mac OS X 10.4 Tiger the most successful operating system release in Apple's history. The retail PowerPC-only DVD can be used on any PowerPC-based Mac supported by Mac OS X 10.4 Tiger.

However, they can be modified to work on any Intel Mac. These grey-colored ‘restore’ DVDs supplied with new Macs, are designed to only restore on the model of Mac that they are intended for. However, it was possible to buy the 'restore' DVDs containing the Intel version through unofficial channels such as eBay, and officially through Apple if you could provide proof of purchase of the appropriate Intel Mac. While Apple shipped the PowerPC edition bundled with PowerPC-based Macs and also sold it as a separate retail box, the only way to obtain the Intel version was to buy an Intel-based Mac bundled with it. There is no universal version of the client operating system, although Mac OS X 10.4 Tiger Server was made available on a universal DVD from version Mac OS X 10.4.7 Tiger. Mac OS X 10.4 Tiger was initially available in a PowerPC edition, with an Intel edition released beginning at Mac OS X 10.4.4 Tiger. Despite not having received security updates since then, Mac OS X 10.4 Tiger remains popular with Power Mac users and retrocomputing enthusiasts due to its wide software and hardware compatibility, as it is the last Mac OS X version to support the Classic Environment, a Mac OS 9 compatibility layer, and PowerPC G3 processors. Safari 4.1.3 is the final version for Mac OS X 10.4 Tiger as of November 18, 2010. The latest version of iTunes that can run on Mac OS X 10.4 Tiger is 9.2.1, because 10.0 only supports Mac OS X 10.5 Leopard and later. The latest supported version of QuickTime is 7.6.4. The next security update, 2009-006 only included support for Mac OS X 10.5 Leopard and Mac OS X 10.6 Snow Leopard. The last security update released for Mac OS X 10.4 Tiger users was the 2009-005 update. Mac OS X 10.4 Tiger was succeeded by Mac OS X 10.5 Leopard on October 26, 2007, after 30 months, making Mac OS 10.4 Tiger the longest running version of Mac OS X.

Mac os x torrent 10.5