Microsoft is changing their operating system requirement for Office 365 on Mac from 10 November 2020.
From 10 November 2020, Office 365 will need one of these macOS release:
- 10.14 (Mojave)
- 10.15 (Catalina)
- the upcoming 11.0 (Big Sur)
to get Office 365 updates or install on new computers.
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Catalina 10.15 is the current public version of macOS. Mojave 10.15 is the version before that.
‘Big Sur’ macOS 11.0 is due out soon.
This announcement fits with Microsoft 365’s support policy for Macs. Office 365 for Mac policy is to support the current macOS plus the last two releases.
It means any Mac with High Sierra 10.13 or earlier can continue to run Office 365 but there’ll be no updates available. Also, no new installations possible on unsupported macOS.
Recent and future macOS releases
Here’s a summary of macOS releases and their Office 365 support status.
- 11.0: Big Sur – 2020 due out soon (Office 365 supported)
- 10.15: Catalina – 2019 (Office 365 support continues)
- 10.14: Mojave – 2018 (Office 365 support continues)
- 10.13: High Sierra – 2017 (Office 365 support ends 10 Nov 2020)
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