OS X Lion
| A version of the Mac OS X operating system | |
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Screenshot of Mac OS X 10.7 Lion
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| Developer | Apple Inc. |
|---|---|
| OS family | |
| Source model | Closed, with open source components |
| Released to manufacturing |
July 20, 2011 |
| Latest release | 10.7.5 (Build 11G63) / October 4, 2012 |
| Update method | Apple Software Update |
| Platforms | x86-64 |
| Kernel type | Hybrid (XNU) |
| License | Apple Public Source License (APSL) and Apple end-user license agreement (EULA) |
| Preceded by | Mac OS X 10.6 Snow Leopard |
| Succeeded by | OS X 10.8 Mountain Lion |
| Official website | Mac OS X 10.7 Lion at the Wayback Machine (archived June 9, 2012) |
| Support status | |
| Unsupported as of about October 2014;iTunes support ended in September 2015 | |
Mac OS X Lion (version 10.7; marketed as Mac OS X 10.7 Lion) is the eighth major release of Mac OS X (now named macOS), Apple's desktop and server operating system for Macintosh computers.
A preview of Mac OS X 10.7 Lion was publicly unveiled at the "Back to the Mac" Apple Special Event on October 20, 2010. It brought many developments made in Apple's iOS, such as an easily navigable display of installed applications, to the Mac, and includes support for the Mac App Store, as introduced in Mac OS X Snow Leopard version 10.6.6. On February 24, 2011, the first developer's preview of Lion (11A390) was released to subscribers to the Apple Developer program. Other developer previews were subsequently released, with Lion Preview 4 (11A480b) being released at WWDC 2011.
Lion was released to manufacturing on July 1, 2011, followed by its final release via the Mac App Store on July 20, 2011. Apple reported over one million Lion sales on the first day of its release. As of October 2011[update], Mac OS X Lion had sold over six million copies worldwide.
On June 6, 2011, at the Apple Worldwide Developers Conference, it was announced that the official release for Lion would be in July 2011. The specific release date of July 20 was not confirmed until the day before, July 19, by Apple CFO, Peter Oppenheimer, as part of Apple's 2011 third-quarter earnings announcement.
Apple did not initially announce any physical media distribution for Lion, such as a set of CD-ROMs or a DVD-ROM as used for past releases. Instead, the operating system was said to be available exclusively as a download from the Mac App Store for US$29.99. The only prior version of OS X that supports the Mac App Store is Snow Leopard, which implied that any machines that support Lion currently running Tiger or Leopard would first have to be upgraded to Snow Leopard, as opposed to allowing a direct upgrade to Lion.
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