However, these are a must: make sure you have a minimum 35 to 45 GB empty space on your drive for the download and install. For application compatibility, it depends on what you have and use. Install: High Sierra from the USB Bootable InstallerĬreate a Time Machine backup of your Mac prior to upgrading, so that you can have something to restore your Mac from, should anything go wrong with the upgrade.Choose: the code for a High Sierra USB Bootable Installer.Go Here: How to create a bootable installer for macOS - Apple Support.Then, if compatible and possible, proceed from there as necessary with upgrading. If compatible with Mojave and later, and you are looking to upgrade to or past Sierra ( macOS 10.12), then you need to upgrade to High Sierra( macOS 10.13), first.
Learn More Here: 32-Bit App Compatibility with macOS High Sierra 10.13.4 and Later - Apple Support So, contact the developer, if an app does not work. Compatibility may be of high concern here, because High Sierra and thereafter are 64-bit only compatible macOS versions.
You'd have to upgrade to High Sierra first, and from there proceed to Big Sur. Note that there are two important factors: First(not not required) backup your Mac, and then upgrade. Yonexyr Said: " MacOS big sur for iMac mid 2014should I update my iMac mid 2014 to MacOS BigSur from macOS Sierra?"
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