OS X 10.11 El Capitan is an operating system that was designed and developed by Apple from 2015 to 2016 alongside Apple’s personal computers. The system has been released on September 30, 2015, and was available for Free from Mac App Store, or was preinstalled on currently sold computers. This software gets the last update (10.11.6) on July 18, 2016, and later has been replaced by a newer version of macOS 10.12 Sierra.
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 another 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.
Today OS X 10.11 El Capitan is 8 years old!
OS X 10.11 El Capitan General Information
| Released | September 30, 2015 |
| Original Price | Free from 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
| Versions | Build | Release Date |
| OS X 10.11 | 15A284 | September 30, 2015 |
| OS X 10.11.1 | 15B42 | October 21, 2015 |
| OS X 10.11.2 | 15C50 | December 8, 2015 |
| OS X 10.11.3 | 15D21 | January 19, 2016 |
| OS X 10.11.4 | 15E65 | March 21, 2016 |
| OS X 10.11.5 | 15F34 | May 16, 2016 |
| OS X 10.11.6 | 15G31 | July 18, 2016 |
