For example, install and use Microsoft 365 Apps on both a Windows 11 device and a Mac, as well as on a mobile device. Unlike volume licensed versions of Office, Microsoft 365 Apps provides a user-based licensing model that allows your users to install Office on multiple devices with their license.

For example, Word, PowerPoint, Excel, Outlook, and OneNote, as well as Teams. Microsoft 365 Apps includes the full versions of Office apps installed on your client devices. Microsoft 365 Apps is the version of Office that comes with many of those enterprise and business subscription plans.

Microsoft 365 and Office 365 service descriptions.

Compare enterprise plans for Office 365.

For more information, see the following resources: Microsoft 365 (and Office 365) provides subscription plans that include access to Office applications and other cloud services, including Teams, Exchange Online, and OneDrive for Business. What is Microsoft 365? What is Microsoft 365 Apps? This article provides guidance on upgrading to Microsoft 365 Apps. For more information, see Overview of Office LTSC 2021.Office LTSC 2021 is designed for specific scenarios: regulated devices that cannot accept feature updates, process control devices on the manufacturing floor, and specialty systems that cannot connect to the internet.Security fixes for vulnerabilities that are discoveredīecause of these changes, we strongly recommend that you upgrade to a supported version of Office as soon as possible.Bug fixes for issues that are discovered.After Office reaches its end of support, Microsoft no longer provides the following services: The end of this lifecycle is known as the product's end of support. This lifecycle lasts for a certain number of years from the date of the product's initial release. Office, like almost all Microsoft products, has a support lifecycle during which we provide bug fixes and security fixes. If you're an admin at a small business or organization who wants to help your users upgrade to the latest version of Office, see Upgrade your Microsoft 365 for business users to the latest Office client.

If you're a home user who wants to upgrade from an older version of Office to the latest version of Office, see How do I upgrade Office?.

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