Carnegie Mellon University School of Computer Science

macOS 10.13 High Sierra - End of Life

Support Ending January 31, 2021

Updated 11/18/20

On November 12, 2020, Apple released macOS 11, Big Sur. In keeping with Apple's release cycle, we anticipate macOS 10.13 High Sierra will no longer receive security updates starting in January 2021. As a result, SCS Computing Facilities (SCSCF) is phasing out software support for all computers running macOS 10.13 High Sierra and will end support on January 31, 2021.

Please Note: At this time, we do not recommend installing Big Sur in either preview or final form until our testing is complete. Upgrading prematurely may result in potential issues. To monitor our testing progress visit our macOS Big Sur support status page.

What do I need to do?

To ensure our ability to continue to support your computer after January 31, 2021, please select one of the options listed below:

  • Upgrade via Self Service
    If your computer meets the hardware requirements, a macOS 10.15 Catalina installation package will be available through Self Service on your SCS-supported Mac. If your system does not meet these requirements, you will not see an available upgrade package.
Please Note: ESET Endpoint Security package must be installed before launching the Catalina installation package in Self Service.

Please Note: If you choose not to upgrade your High Sierra computer, it will not receive security patches or functionality updates, and our ability to troubleshoot issues will be limited as of February 1, 2021.

Expect Mojave support to end in 2021

With Apple's release of macOS 11 Big Sur in late 2020, Mojave will be the third oldest version and will cease to be supported at that time. As a result, SCSCF will stop providing software support for all computers running macOS 10.14 Mojave in late 2021.