Build list legend
|Version of Mac OS X|
|Architecture||PPC, PPC64, i386|
Mac OS X Tiger, or Mac OS X 10.4, is the fifth major release of Mac OS X that was released on 29 April 2005. It was first announced on 28 June 2004 at WWDC. It introduced 64-bit support for Unix binaries (excluding the Mac OS X API) and was the first version of Mac OS X to support Intel x86 processors. It was the last version to support PowerPC G3 processors and below (603/604 only via kernel patching) and the last version to ship with Internet Explorer as an optional component.
Early Tiger versions, including all boxed retail releases, only supported PowerPC processors. The first available build to support Intel is build 8B1025, which was pre-installed on the original transition kit. After the introduction of the first proper Intel Macs, the client version of Tiger for Intel was only included with Mac hardware that required it and no boxed retail versions of it exist. However, the Universal Server Edition, which was compatible with both Intel and PowerPC, did have a boxed release.