Hi Rich, Does this mean there is absolutely no way to prevent macOS from installing the newest major version (not just deferring up to 90 days) once my fleet is on Big Sur? I manage machines in a Higher-Ed environment and we usually wait until the summer each year to upgrade to the newest macOS. So it sounds like as of Big Sur, Apple will be forcing me to upgrade my clients around December-January each year (assuming 90 day deferral) to the newest major OS release. If this is the case, it would likely require updating third-party software for compatibility with the new OS or risk the software no longer working in our environment. Thanks in advance