Support for Office LTSC 2021, and additional apps will end on October 13, 2026
Support for Office LTSC 2021 and related apps ends October 13, 2026, with no further updates or support. Users should upgrade to Microsoft 365 Apps or Office LTSC 2024 to maintain security, compliance, and performance before that date. What and why: 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, 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. Rollout schedule: We will begin rolling out mid-October 2026 and expect to complete by mid-October 2026. Impact on your organization: After end of support, Office LTSC 2021 suites and standalones will no longer receive security updates or other fixes, and no technical assistance will be available for devices still running them. Continuing to use unsupported software can expose your organization to security and compliance risks and may impact service reliability and performance. Action required / Recommendations: To mitigate these risks while maintaining access to desktop Office apps, we recommend upgrading devices to a Microsoft 365 or Office 365 suite that includes Microsoft 365 Apps (for enterprise or for business). Microsoft 365 Apps provides always-up-to-date versions of familiar apps like Word, Excel, and PowerPoint for desktop, mobile, and web with continuous support under the Modern Lifecycle Policy, and is eligible for use with the Microsoft 365 Copilot add-on. Enterprises should look to Microsoft 365 E3, Office 365 E3, or Microsoft 365 Apps for enterprise. Organizations with fewer than 300 users should look to Microsoft 365 Business Premium, Microsoft 365 Business Standard, or Microsoft 365 Apps for business. For scenarios that require a fully disconnected solution, we recommend upgrading to Office LTSC 2024. Office LTSC 2024 is Microsoft’s current supported on-premises version of Office for commercial customers and will […]
The post Support for Office LTSC 2021, and additional apps will end on October 13, 2026 appeared first on M365 Admin.
Published on:
Learn moreWe can help you with Support for Office LTSC 2021, and additional apps will end on October 13, 2026
If you want help implementing, troubleshooting, or improving this product, contact us and we’ll point you in the right direction.
Related posts
Dynamics 365 Sales: Choose the data sources AI-powered Data Enrichment uses, including CRM notes
AI-powered Data Enrichment now lets admins choose which data sources the agent uses to enrich records. Outlook emails, Teams meetings, and the...
Microsoft Teams: Pro Management portal Analytics & Reports Design Refresh
We are refreshing the way we organize the Analytics & Reports area in the Pro Management portal to make it more user-friendly. Product Mic...
Copilot: Audio overviews on PDF Reteirement
Microsoft 365 Copilot mobile app’s Audio Overviews on PDFs, which create AI-generated podcast-style summaries for commercial users, will...
Public CDN is becoming optional during Brand Center setup
Brand Center setup will no longer require enabling Public CDN by default, allowing organizations to use branding governance without it. Public...
Microsoft 365 Copilot and Power Apps: Retirement of App Builder agent and vibe.powerapps.com
Microsoft is retiring the App Builder agent and vibe.powerapps.com by November 30, 2026, consolidating app creation into Copilot Cowork and Mi...
Outlook: Reply With a Template in Rules
New Outlook for Windows and Outlook on the web will let users create inbox rules that auto-reply with saved templates, automating routine resp...
Microsoft Purview Audit: AuditLogQuery API generally available and Search-UnifiedAuditLog retiring
The Microsoft Graph AuditLogQuery API will be generally available in October 2026, replacing the Search-UnifiedAuditLog PowerShell cmdlet, whi...
Dynamics 365 Sales – Information regarding the retirement of the Dynamics 365 Sales Insights standalone add-on
Starting November 1, 2026, Dynamics 365 Sales Insights as a standalone add-on will have reached end of support. Sales Insights is a legacy off...
Work IQ: Updating documents in Office
Work IQ enables agents to create and edit Microsoft Office documents using organizational context, helping users produce and update content mo...
Microsoft Purview: Information Protection – Apply default SharePoint library labels to data at rest
Enables auto‑labeling of existing SharePoint files to match the default sensitivity label configured on their document library. This helps org...