Mac OS X 10.1

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Mac OS X 10.1
Version of the macOS operating system
Screenshot of Mac OS X 10.1 Puma Finder and System Preferences
DeveloperApple Computer, Inc.
OS family
Source modelClosed, with open source components
September 29, 2001; 22 years ago (2001-09-29)[1]
Latest release10.1.5 / June 6, 2002; 21 years ago (2002-06-06)[2]
Kernel typeHybrid (XNU)
LicenseApple Public Source License (APSL) and Apple end-user license agreement (EULA)
Preceded byMac OS X 10.0
Succeeded byMac OS X 10.2 Jaguar
Official websiteApple - Mac OS X at the Wayback Machine (archived November 17, 2001)
TaglineThe biggest breakthrough since point and click.
Support status
Historical, unsupported as of November 13, 2006

Mac OS X 10.1 (code named Puma) is the second major release of macOS, Apple's desktop and server operating system. It superseded Mac OS X 10.0 and preceded Mac OS X Jaguar. Mac OS X 10.1 was released on September 25, 2001, as a free update for Mac OS X 10.0 users. The operating system was handed out for no charge by Apple employees after Steve Jobs' keynote speech at the Seybold publishing conference in San Francisco. It was subsequently distributed to Mac users on October 25, 2001, at Apple Stores and other retail stores that carried Apple products.

Mac OS X 10.1 was codenamed "Puma" because the internal team thought it was "one fast cat."[3]

System requirements[edit]

Supported computers:


Hard Drive Space:


Apple introduced many features that were missing from the previous version, as well as improving overall system performance.

This system release brought some major new features to the Mac OS X platform:

  • Performance enhancements — Mac OS X 10.1 introduced large performance increases throughout the system.
  • Easier CD and DVD burning — better support in Finder as well as in iTunes
  • DVD playback support — DVDs can be played in Apple DVD Player
  • More printer support (200 printers supported out of the box) — One of the main complaints of version 10.0 users was the lack of printer drivers, and Apple attempted to remedy the situation by including more drivers, although many critics complained that there were still not enough.
  • Faster 3D (OpenGL performs 20% faster) — The OpenGL drivers and handling were vastly improved in this version of Mac OS X, which created a large performance gap for 3D elements in the interface, and 3D applications.
  • Improved AppleScript — The scripting interface now allows scripting access to many more system components, such as the Printer Center, and Terminal, thus improving the customizability of the interface. As well, Apple introduced AppleScript Studio, which allows a user to create full AppleScript applications in a simple graphical interface.
  • Improved filehandling - The Finder was enhanced to optionally hide file extensions on a per-file basis. The Cocoa API was enhanced to allow developers to set traditional Mac type and creator information directly without relying on Carbon to do it.[5]
  • ColorSync 4.0, the color management system and API.
  • Image Capture, for acquiring images from digital cameras and scanners.
  • Menu Extras, a set of items the user can add to the system menu, replacing the supplied Dock Extras from Mac OS X 10.0 Cheetah.[6]

Apple switched to using Mac OS X as the default on all then-new Macs with the 10.1.2 release.[7]

Applications found on Mac OS X 10.1 Puma[edit]

Release history[edit]

Version Build Date Darwin version Notes
10.1 5G64 September 25, 2001 1.4.1 Original retail CD-ROM release; 5L14 and 5L17b available after certain security updates
10.1.1 5M28 November 12, 2001 5.1 Mac OS X Update 10.1.1: Information and Download
10.1.2 5P48 December 21, 2001 5.2 Mac OS X Update 10.1.2: Information and Download
10.1.3 5Q45 February 19, 2002 5.3 Mac OS X Update 10.1.3: Information and Download
10.1.4 5Q125 April 17, 2002 5.4 Mac OS X Update 10.1.4: Information and Download
10.1.5 5S60 June 5, 2002 5.5 Mac OS X Update 10.1.5: Information and Download; 5S66 after networking update


Timeline of Mac operating systems
ARM architecture familyx86PowerPC68kMacBook Air (Apple silicon)iMac ProRetina MacBook ProMacBook AirApple–Intel architecturePower Mac G5Power Mac G4iMac G3Power MacintoshMacintosh QuadraMacintosh PortableMacintosh SE/30Macintosh IIMacintosh PlusMacintosh 128KmacOS SonomamacOS VenturamacOS MontereymacOS Big SurmacOS CatalinamacOS MojavemacOS High SierramacOS SierraOS X El CapitanOS X YosemiteOS X MavericksOS X Mountain LionMac OS X LionMac OS X Snow LeopardMac OS X LeopardMac OS X TigerMac OS X PantherMac OS X 10.2Mac OS X 10.1Mac OS X 10.0Mac OS X Server 1.0Mac OS X Public BetaA/UXA/UXA/UXMacWorks XLMacWorks XLSun RemarketingMacWorks XLMac OS 9Mac OS 9Mac OS 9Mac OS 8Mac OS 8Mac OS 8Mac OS 8System 7System 7System 7System 7System 6Classic Mac OSClassic Mac OSClassic Mac OSClassic Mac OSSystem 1Finder (software)Finder (software)Finder (software)Finder (software)Finder (software)Finder (software)Finder (software)


  1. ^ "First Major Upgrade to Mac OS X Hits Stores This Weekend" (Press release). Apple Inc. September 25, 2001. Archived from the original on September 19, 2022. Retrieved January 11, 2018.
  2. ^ "Mac OS X Update 10.1.5: Information and Download". January 12, 2002. Archived from the original on June 17, 2002.
  3. ^ "Seybold San Francisco Keynote 2001". September 25, 2001.
  4. ^ a b c d e f g h i j k "Mac OS X v10.1". Apple Inc. 2001. Archived from the original on November 18, 2001. Retrieved March 21, 2020.
  5. ^ "Mac OS X 10.1 File Name Extension Guidelines - Cocoabuilder". Archived from the original on July 2, 2017. Retrieved May 5, 2014.
  6. ^ "Mac OS X 10.1 - Page 9 - (10/2001)". Archived from the original on May 7, 2022. Retrieved November 18, 2020.
  7. ^ "Apple Makes Mac OS X the Default Operating System on All Macs" (Press release). Apple. Archived from the original on September 19, 2022. Retrieved January 10, 2018.

External links[edit]

Preceded by Mac OS X 10.1 (Puma)
Succeeded by