On the other hand, the Mac OS X 10.11.3 El Capitan update contains bug fixes and security updates, and promises to improve the compatibility, stability and security of your Mac computers. Apple today released two new maintenance releases of its acclaimed iOS and Mac OS X operating systems, the iOS 9.2.1 update for iPhone, iPad, and iPod touch devices, and OS X El Capitan 10.11.3 for supported Macs, fixing various security issues.Īfter only two Beta builds, the iOS 9.2.1 and Mac OS X 10.11.3 security updates were pushed a couple of hours ago to users worldwide and you should receive a notification to update your device in the coming hours.ĭon't expect to see any visual change, as these maintenance builds are here only to fix a few security issues that Apple discovered since the release of the iOS 9.2 and Mac OS X 10.11.2 updates last year.įor iOS 9.2.1, Apple noted the fact that it contains security updates and bug fixes, including a patch for an issue that could prevent the completion of app installation if a mobile device management (MDM) sever was to be used.