Microsoft's latest Mac rule is perpetual releases of Office are only supported for three Mac OS releases. Office 2019 is nearly dead - if you upgrade to the next major OS Apple releases this fall.Only bug fixes or minor improvements to existing features. Office 2019 does not get new features.Office 2019 is a one-time cost perpetual license.Office 365 gets new features as they're ready to release.

The cheapest is $70 a year for a one computer license. There's almost nothing different between the two, with these exceptions: Your choices for an M1 Mac (presuming you specifically need Office and not a workalike product) are Office 365 or Office 2019. Apple can't do that for them, and vendors get plenty of advance documentation of what they need to do.

It's up to third party vendors to keep their products up-to-date so they work in the latest OS. The Mac and its OS are their products, they can do whatever they want with them. With only a few, very rare exceptions, you can't install an OS that's older than what your Mac shipped with.Īpple didn't wreck anything. Apple's products have always been this way. This is also true of the most current Intel based Macs. You cannot install any OS older than Big Sur on any M1 Mac.

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