Release Date

Below is the release date for your favorite Intel-based Operating System from Apple and due to expired certificates on the installers, you will need to set the date to match (or within a year) using the Date and Time Preferences in macOS, the Terminal or from the BIOS and then install normally. Be sure to have a smartphone or tablet handy since adjusting the date will cause websites with SSL certificates to not at all until the date is made current. Please note that if you are installing with the use of virtualization software, you need to disable the option to sync the time.


Steve Pringle

About The Author: Stephan Pringle is an Information Technology Specialist. He covers hardware and software and provides tips for you to troubleshoot and repair issues on your own. In his spare time, he writes articles about the State of New York on his Hackintosh and HackBook and that has helped him to become the top contributor of the New York City section of Yahoo! Answers.