We recommend that you upgrade older Office clients to a subscription version of the Office client, such as Microsoft 365 Apps for enterprise. Upgrade resources available to administrators Therefore, administrators should update older Office clients to versions of Office supported for connecting to Microsoft 365 services. Organizations that use these older clients will almost certainly face an increased security risk and may find themselves out of compliance depending upon specific regional or industry requirements. Over time, these Office clients may encounter performance or reliability issues. Impact of using older Office clients to connect to Microsoft 365 servicesĪfter October 13, 2020, ongoing investments to our cloud services will not take into account older Office clients. But these older clients may encounter performance or reliability issues over time. We won’t take any active measures to block other versions of the Office client that are still supported and are up to date, such as Office 2013 with Service Pack 1, from connecting to Microsoft 365 services.
