Mac OS X Cheetah

Mac OS X Cheetah
Version of Mac OS X
MacOS101Logo.png
MacOS-10.0-Desktop.png
Version10.0
CodenameCheetah
Preliminary name
ArchitecturePPC
Latest build
Release date2001-03-24
Support end2004
SKUs
Desktop
Server
Replaces
Mac OS 9
Mac OS X Server 1.x
Mac OS X Public Beta
Replaced by
Mac OS X Puma

Mac OS X Cheetah, or Mac OS X 10.0, is the first retail release of Mac OS X, which was released on 24 March 2001.

Main changes[edit | edit source]

This is the first release of macOS which is based on the new Darwin kernel, making features possible which were not available in previous releases such as cooperative multitasking.

The new dock simplifies management of applications compared to the MultiFinder from the Classic line.

Criticism[edit | edit source]

While being praised for the features listed above, Mac OS X Cheetah was initially a subject of criticism, as it did not have as many features as compared to Mac OS 9. Also, even after Apple published the Cocoa API for hybrid Mac OS 9/X applications, many applications were not ready for Mac OS X and only could run under the Classic environment. In addition, older Macintosh computers performed slower on Mac OS X than on Mac OS 9.

Many of these issues were fixed with later versions of Mac OS X.

List of known builds[edit | edit source]

Beta[edit | edit source]

Confirmed build 4K8

RTM[edit | edit source]

Updates[edit | edit source]

10.0.1[edit | edit source]

Confirmed build 4L5
Leaked build 4L8

10.0.2[edit | edit source]

10.0.3[edit | edit source]

10.0.4[edit | edit source]