- Mar 31, 2019 I am trying to install Security Update 2019-002 for OS X Sierra (10.12.6). Everything seems to work until I do the required restart. That starts out okay, but eventually, it says '5 minutes remaini.
- OS X El Capitan v10.11.6 and Security Update 2016-004. OS X Mavericks v10.9.5, OS X Yosemite v10.10.5, and OS X El Capitan v10.11 and later. AirPort Base Station Firmware Update 7.6.7 and 7.7.7.
- Sep 23, 2021 Security Update 2021-006 Catalina is available for Macs running macOS Catalina only. It is a good idea to backup the Mac before installing any software update. From the Apple menu, go to System Preferences and choose “Software Update” Install ‘Security Update 2021-006 Catalina’ on the.
IOS 12.5.5 includes important security fixes and is therefore recommended to install for all devices that can get the update. Separately, Mac users running macOS Catalina will find Security Update 2021-006 Catalina available for Macs that are not yet running Big Sur.
Apple has released a new update for Mac OS X entitled Security Update April 2002. The update can be downloaded and installed through Mac OS X’s Software Update System Preference pane.
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Software Update reports, “Security Update April 2002 includes the following updated components which provide increased security to prevent unauthorized access to applications, servers and the operating system.”