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I have a 2018 MacBook Air. I have no intention of ever upgrading to Catalina as I have too many 32-bit apps and the benefits don't outweigh the loss of functionality. How can I prevent notifications about an upgrade being available, but still retain notifications for security updates to my existing OS (Mojave).
MacBook Air
As long as you have Mojave 10.14.6 installed, you will continue to receive Security and Safari browser updates for the next two years. Watch the System Preferences : Software Update badge count, as it will still show the Catalina upgrade available, but may also show additional updates for Mojave that can be selected independent of the Catalina upgrade.
Here are my selections on the Software Update : Advanced… panel:
The last one is important as it updates the GateKeeper and MRT security data roughly on a monthly basis.
As long as you have Mojave 10.14.6 installed, you will continue to receive Security and Safari browser updates for the next two years. Watch the System Preferences : Software Update badge count, as it will still show the Catalina upgrade available, but may also show additional updates for Mojave that can be selected independent of the Catalina upgrade.
Here are my selections on the Software Update : Advanced… panel:
The last one is important as it updates the GateKeeper and MRT security data roughly on a monthly basis.
Yep. Have been using various Macs since the switch to Intel and have many 32-bit apps that are not and likely won't ever be updated to 64-bit (they just don't need access to that kind of memory and some are no longer under development). Obviously I know how to ignore the notifications, however, I don't want to miss updates for Mojave, which I assume will continue for at least a few years, at which time I'll reconsider my options.
Just ignore the upgrade notices.
You must have moved a lot of data from previous machines to have any 32 bit apps on a 2018 machine.
Prevent upgrade to Catalina
