SMU macOS users can update to Big Sur. This news item was published in November 2020, is now outdated, and is preserved for historical reference only.
This week, Apple announced during their “One more thing” event that the latest update to its macOS, Big Sur, is to be released to the public on November 12, 2020. While we know people are eager to update to the latest OS to take advantage of the new enhancements for key apps; including Safari, Messages, and Maps, as well as new privacy features, we recommend that users wait until the next “dot” OS update before upgrading University-owned Macs. Continue reading Mac Users: Don’t Upgrade to Big Sur… Just Yet!
The newest version of macOS 10.15 Catalina is now available. We highly recommend not updating to this OS as it will be problematic for various 32-Bit software packages causing the software to not run. 
After updating your Mac to macOS High Sierra 10.13.4, you may have noticed a new alert when launching older apps. When you launch one of these 32-bit applications, your system will warn you that it is “not optimized” for macOS. If you click Okay, the application will continue to run as normal – for now – but there might be issues in the future. 