MC1278920 | Support for Office LTSC 2021, and additional apps will end on October 13, 2026

Service

Microsoft 365 suite

Last Updated

2026-04-13T16:19:55.357Z

Published

2026-04-13T16:19:39Z

Message ID

MC1278920

As previously communicated, support for Office LTSC 2021 will end on October 13, 2026. After that date, no further updates, security fixes, or technical support will be available for this version of Office. While the applications may continue to function, using unsupported software could lead to potential security risks, compliance risks, system incompatibilities, and other issues. Support for Visio LTSC 2021 and Microsoft Project LTSC 2021 and several other products will also end on October 13, 2026. Organizations using these products should upgrade as soon as possible to maintain security, compliance, and performance. [How this will affect your organization:] After end of support, Office L...

Open Full Notification Browse Message Center

This utility page supports direct lookup of Message Center ID MC1278920.