Editing Mac OS X 10.1 (section)

{{short description|Second major release of Mac OS X}}
{{Infobox OS version
| name = Mac OS X 10.1
| version of = [[macOS]]
| logo = MacOS10.1.png
| logo size = 64px
| screenshot = Mac OS X 10.1 Puma screenshot.png<!-- Do not change unless you have read "Wikipedia:Software_screenshots"! -->
| caption = Screenshot of Mac OS X 10.1 Puma Finder and System Preferences
| developer = [[Apple Inc.|Apple Computer, Inc.]]
| family = {{flat list|
* [[Macintosh operating systems|Macintosh]]
* [[Unix-like]]
}}
| source_model = [[Closed source|Closed]], with [[open-source software|open source]] components
| license = [[Apple Public Source License]] (APSL) and Apple [[end-user license agreement]] (EULA)
| kernel_type = [[Hybrid kernel|Hybrid]] ([[XNU]])
| supported_platforms = [[PowerPC]]<!--Only official platforms are listed, not what they played around with and never released-->
| release_version = 10.1.5
| release_date = {{Start date and age|2002|6|6}}<ref>{{cite web|url=http://docs.info.apple.com/article.html?artnum=122010|title=Mac OS X Update 10.1.5: Information and Download|date=January 12, 2002|archive-url=https://web.archive.org/web/20020617170432/http://docs.info.apple.com/article.html?artnum=122010|archive-date=June 17, 2002|url-status=dead}}</ref>
| GA date = {{Start date and age|2001|9|29}}<ref>{{cite press release|url=https://www.apple.com/newsroom/2001/09/25First-Major-Upgrade-to-Mac-OS-X-Hits-Stores-This-Weekend|title=First Major Upgrade to Mac OS X Hits Stores This Weekend|date=September 25, 2001|publisher=[[Apple Inc.]]|access-date=January 11, 2018|archive-date=September 19, 2022|archive-url=https://web.archive.org/web/20220919180049/https://www.apple.com/newsroom/2001/09/25First-Major-Upgrade-to-Mac-OS-X-Hits-Stores-This-Weekend/|url-status=live}}</ref>
| preceded_by = [[Mac OS X 10.0]]
| succeeded_by = [[Mac OS X Jaguar|Mac OS X 10.2 Jaguar]]
| tagline = The biggest breakthrough since point and click.
| support_status = Historical, unsupported as of November 13, 2006
<!--
| date = January 2009 ←- approximate date of template insertion for dating hidden maintenance categories --!>
-->
| website = {{webarchive|url=https://web.archive.org/web/20011117192235/http://www.apple.com/macosx|date=November 17, 2001|title=Apple - Mac OS X}}
}}
{{macOS topics}}

'''Mac OS X 10.1''' ([[code name]]d '''Puma''') is the second [[software versioning|major release]] of [[macOS]], [[Apple Inc.|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 free by Apple employees after [[Steve Jobs]]' [[Stevenote|keynote]] speech at the Seybold [[publishing]] conference in [[San Francisco]]. It was subsequently distributed to [[Macintosh|Mac]] users on October 25, 2001, at [[Apple Store]]s 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."<ref>{{cite web | url=https://archive.org/details/2001-09-25-seybold-san-francisco-keynote | title=Seybold San Francisco Keynote 2001 | date=September 25, 2001 }}</ref> In January 2002, Apple switched to using Mac OS X as the default OS on all new Macs at the time starting with the 10.1.2 release, replacing [[Mac OS 9]].<ref name=applepr>{{cite press release|title=Apple Makes Mac OS X the Default Operating System on All Macs|url=https://www.apple.com/newsroom/2002/01/07Apple-Makes-Mac-OS-X-the-Default-Operating-System-on-All-Macs|date=January 7, 2002|publisher=[[Apple Inc.]]|access-date=January 10, 2018|archive-date=September 19, 2022|archive-url=https://web.archive.org/web/20220919180048/https://www.apple.com/newsroom/2002/01/07Apple-Makes-Mac-OS-X-the-Default-Operating-System-on-All-Macs/|url-status=live}}</ref>