- MICROSOFT OFFICE HOME AND BUSINESS 2016 VS PROFESSIONAL UPDATE
- MICROSOFT OFFICE HOME AND BUSINESS 2016 VS PROFESSIONAL UPGRADE
- MICROSOFT OFFICE HOME AND BUSINESS 2016 VS PROFESSIONAL WINDOWS
Starting on November 1, 2021, the following versions are the minimum versions of Outlook for Windows you need to be using to be able to connect to Microsoft 365 services, such as Exchange Online. It doesn't apply to Outlook on other operating systems, such as macOS, iOS, or Android. This information only applies to Outlook for Windows.
MICROSOFT OFFICE HOME AND BUSINESS 2016 VS PROFESSIONAL UPDATE
The information in this section was communicated in the following Message center post in the Microsoft 365 admin center. Minimum version requirements for Outlook for Windows For more information, see Skype for Business Online retirement. Skype for Business Online was retired on July 31, 2021. For more information, see Basic Authentication and Exchange Online – September 2021 Update. There are some changes planned related to the use of Basic Authentication with Exchange Online. Basic authentication with Exchange Online For more information, see Disabling TLS 1.0 and 1.1 for Microsoft 365 and Preparing for TLS 1.2 in Office 365 and Office 365 GCC. Other changes related to connectivity to Microsoft 365 services Retirement of TLS 1.0 and 1.1Īfter October 15, 2020, you must be using at least TLS 1.2 to connect to Microsoft 365 services.