Apple released OS X 10.11.6 on , fixing security and stability problems.
On , Apple silently pushed a security update that broke the Ethernet hardware connection under El Capitan for i Macs and Mac Pros.
to see if there are problems with OS X 10.11 that affect you.
Apple released Security Update 2017-002 for El Capitan on , fixing security bugs.Apple says El Capitan contains performance improvements over Yosemite and earlier versions. Tighter security protections are included: "rootless" System Integrity Protection protects the core OS from changes by malware or mistakes. I installed El Capitan 10.11.5 on two computers, and encountered only two programs that broke as a result: Adobe Illustrator CS5 and Photoshop CS5.Also, Apple fixed 101 security bugs, and subsequent updates fixed even more. Apple software: Some users reported corrupted data, corrupted or missing accounts, failing connections, reappearance of deleted messages, and crashes.Apple released OS X 10.11.4 on , fixing multiple security problems.Apple released OS X 10.11.5 on , fixing multiple security and stability problems.