The era of Office Online Server (OOS) is coming to an end. Microsoft has officially announced that support will completely cease in 2026. This means no updates, no security patches, and no technical support. But what does this concretely mean for companies still using this server version of Office?
What exactly is Office Online Server?
Office Online Server is the on-premises version of Microsoft’s cloud tools such as Word, Excel, PowerPoint, and OneNote Online. Companies could host this solution themselves to edit Office documents within their own infrastructure, without relying on Microsoft 365.
Why is Microsoft ending Office Online Server?
Microsoft is shifting its focus entirely to the Microsoft 365 cloud environment.
According to Microsoft, organizations can receive updates faster, collaborate more effectively, and benefit from AI features such as Copilot. In short:
- Less focus on on-premises installations
- Greater emphasis on security, speed, and integration
- New features are released exclusively in Microsoft 365
What is the best course of action for organizations now?
Don’t want to wait until support ends completely? It’s wise to migrate to Microsoft 365 now.
This offers several benefits:
☑️ Always up-to-date with security patches
☑️ Improved collaboration via Teams and SharePoint
☑️ Integration with AI and cloud storage
☑️ No more worries about on-premises server maintenance
Trienekens Online assists with your migration
At Trienekens Online, we assist organizations with the complete migration from IMAP or Office Online Server to Microsoft 365. From email and documents to license management, we ensure everything runs smoothly, without interruptions for your team.
Ready for the move to the future
The end of Office Online Server is not a reason to panic; it’s an opportunity to modernize.
With Microsoft 365, you’re ready for the future of hybrid work—securely connected and with more possibilities than ever.
