It’s never a good idea to update to a just-released major OS version unless you have to. It’s also worth noting that, however alluring it might be that Big Sur can make Time Machine backups to APFS volumes, those are incompatible with previous versions of Time Machine, and converting old backups for use with Big Sur is also likely to be a one-way trip. Should it prove a disaster, the road back isn’t quick or easy: you’d need to reformat your boot disk and install a fresh copy of the previous version of macOS. If you still want to be an early adopter, then this article gives practical advice on what you should do to prepare for the upgrade.Īs with Catalina, upgrading to Big Sur involves commitment. This article looks at some of the issues involved, with particular reference to Big Sur. Many experienced Mac users like to leave it a while before committing their main, production Mac to a new version of macOS.
