OS X 10.11 El Capitan is an operating system designed and developed by Apple from 2015 to 2018 alongside Apple’s personal computers. The system was released on September 30, 2015, and was available for Free from the Mac App Store, or was preinstalled on currently sold computers.
OS X El Capitan includes features to improve the security, performance, design, and usability of OS X. Compared to OS X Yosemite, Apple says that opening PDFs is four times faster, app switching and viewing messages in Mail is twice as fast, and launching apps is 40% faster.
The maximum amount of memory that could be allocated to the graphics processor has been increased from 1024 MB to 1536 MB on Macs with an Intel HD 4000 GPU. OS X El Capitan supports Metal, Apple’s graphics API introduced in iOS 8 to speed up performance in games and professional applications.
Apple’s typeface San Francisco replaces Helvetica Neue as the system typeface. OS X El Capitan also adopts LibreSSL in replacement of OpenSSL used in previous versions. El Capitan introduces new window management features such as creating a full-screen split-screen limited to two app windows side by side in full screen by pressing the green button on the left upper corner of the window or Control+Cmd+F keyboard shortcut, then snapping any supported window to that full-screen application.
New software improves Mission Control to incorporate this feature across multiple spaces. It also enables users to spot the pointer more easily by enlarging it by shaking the mouse or swiping a finger back and forth on the trackpad.
This software got the last update (10.11.6) on July 9, 2018, but in the meantime was replaced by a newer version of macOS 10.12 Sierra. Today OS X 10.11 El Capitan is 8 years old!
OS X 10.11 El Capitan Details
| Released | September 30, 2015 – 8 years ago |
| Last Software Update | July 9, 2018 – 6 years ago |
| Time of Support | 33 months (2 years) |
| Original Price | Free from the Mac App Store |
| System Requirements | iMac Mid 2007 or newer MacBook Late 2008 Aluminum or newer MacBook Early 2009 or newer MacBook Pro Mid 2007 or newer MacBook Air Late 2008 or newer Mac mini Early 2009 or newer Mac Pro Early 2008 or newer Xserve Early 2009 2 GB of memory 8.8 GB of available disk space Mac OS X 10.6.8 or later |
| Distribution | Mac App Store |
Versions of the OS X El Capitan
| Versions | Build | Release Date |
| OS X 10.11 | 15A284 | September 30, 2015 – 8 years ago |
| OS X 10.11.1 | 15B42 | October 21, 2015 – 8 years ago |
| OS X 10.11.2 | 15C50 | December 8, 2015 – 8 years ago |
| OS X 10.11.3 | 15D21 | January 19, 2016 – 8 years ago |
| OS X 10.11.4 | 15E65 | March 21, 2016 – 8 years ago |
| OS X 10.11.5 | 15F34 | May 16, 2016 – 8 years ago |
| OS X 10.11.6 | 15G31 | July 18, 2016 – 8 years ago |
Security Updates for the OS X El Capitan
| Build | Release Date |
| 15G1004 15G1011 | September 1, 2016 – 7 years ago |
| 15G1108 | October 24, 2016 – 7 years ago |
| 15G1212 | December 13, 2016 – 7 years ago |
| 15G1217 | January 17, 2017 – 7 years ago |
| 15G1421 | March 27, 2017 – 7 years ago |
| 15G1510 | May 15, 2017 – 7 years ago |
| 15G1611 | July 19, 2017 – 7 years ago |
| 15G17023 | October 31, 2017 – 6 years ago |
| 15G18013 | December 6, 2017 – 6 years ago |
| 15G19009 | January 23, 2018 – 6 years ago |
| 15G20015 | March 29, 2018 – 6 years ago |
| 15G21013 | June 1, 2018 – 6 years ago |
| 15G22010 | July 9, 2018 – 6 years ago |
Disclaimer: The data presented in this article is under continuous development and has been manually collected from various sources based on their availability. The author of this article may revise this dataset as additional research is conducted and reviewed. Please note that the information is provided “as is” and “as available” without express or implied warranties. The author cannot be held responsible for any omissions, inaccuracies, or errors in the published information. Any warranties relating to this information are hereby disclaimed.
