As of next month, Microsoft will stop providing mainstream support for Windows Server 2022, leaving many organizations vulnerable to potential security threats. This milestone marks a significant turning point for those using this version of the server operating system, as it will no longer receive critical updates and patches that address newly discovered vulnerabilities.
The end of mainstream support for Windows Server 2022 has been set for October 13th, 2026, after which it will transition to extended support. Although this phase still includes security updates at no additional cost, the frequency and scope of these updates will decrease significantly. The main difference between mainstream and extended support is that the latter focuses primarily on addressing critical security issues, whereas the former provides broader maintenance and feature enhancements.
For organizations currently running Windows Server 2022, it’s essential to understand that this shift in support phases may have significant implications for their systems’ security posture. In particular, Microsoft advises administrators to upgrade their systems to the latest Long-Term Servicing Channel (LTSC) release, which is Windows Server 2025. This new version started rolling out to Windows Insiders in January 2024 and became generally available in November of the same year.
Windows Server 2025 offers a more secure and stable platform, with enhanced features and performance compared to its predecessor. Although it will eventually reach the end of mainstream support itself on November 13th, 2029, Microsoft promises an additional five years of extended support until November 14th, 2034. Administrators are encouraged to upgrade before this date to ensure their systems remain protected and supported.
Microsoft has made it easier for administrators to test Windows Server 2025 by offering a free 180-day trial available via the Microsoft Evaluation Center. This allows them to evaluate the new features and performance of the operating system without committing to an immediate deployment.
Ultimately, the end of mainstream support for Windows Server 2022 serves as a reminder for organizations to prioritize their IT infrastructure’s security and maintainability. By upgrading to the latest version and staying informed about Microsoft’s servicing dates, administrators can minimize potential risks and ensure their systems remain secure and supported for years to come.
As you prepare for the transition, remember that it’s essential to have a well-planned upgrade strategy in place, including thorough testing and deployment procedures. Don’t wait until the last minute – take advantage of the free trial and start evaluating Windows Server 2025 today to ensure a smooth transition and protect your organization from potential security threats.
Source: Bleeping Computer — 2026-09-16