--ignore
option did NOT work. The 2020-005 update fixed this and now works properly. Big hat tip to @pcrandom for doing a ton of testing. He was able to confirm that this issue was fixed.softwareupdate --ignore
is deprecated and no longer works. You will only be able to block minor and major updates for 90 days using MDM.Please file feedback NOW, if you need the ability to block minor & major updates in macOS Big Sur!Thanks for the clarification @mboylan!