Windows Server Lifecycle Dates
Complete support timeline reference for IT infrastructure planning and compliance
Currently Supported Versions
Windows Server versions actively receiving security updates and support from Microsoft
| Version | Release Date | Mainstream Ends | Extended Ends | Status |
|---|---|---|---|---|
| Windows Server 2025 | 1 November 2024 | October 2029 | October 2034 | Mainstream |
| Windows Server 2022 | 18 August 2021 | 13 October 2026 | 14 October 2031 | Mainstream |
| Windows Server 2019 | 13 November 2018 | 9 Jan 2024 (Ended) | 9 January 2029 | Extended |
| Windows Server 2016 | 15 October 2016 | 11 Jan 2022 (Ended) | 12 January 2027 | Extended |
Windows Server 2016 enters end-of-life in January 2027. Begin planning migrations now to avoid security risks and compliance issues. We offer comprehensive migration consulting and Windows Server licensing solutions.
End of Life Versions
Legacy versions no longer receiving standard support (ESU may be available)
| Version | Release Date | Extended Ended | ESU Until | Status |
|---|---|---|---|---|
| Windows Server 2012 R2 | 25 November 2013 | 10 Oct 2023 | 13 October 2026 | ESU Available |
| Windows Server 2012 | 4 September 2012 | 10 Oct 2023 | 13 October 2026 | ESU Available |
| Windows Server 2008 R2 | 22 October 2009 | 14 Jan 2020 | 10 Jan 2023 (Ended) | End of Life |
| Windows Server 2008 | 27 February 2008 | 14 Jan 2020 | 10 Jan 2023 (Ended) | End of Life |
Understanding Support Phases
Mainstream Support
Full support including new features, security updates, bug fixes, and free incident support. Typically lasts 5 years from release.
Extended Support
Security updates only. No new features or free support. Paid support available. Lasts 5 years after mainstream support ends.
Extended Security Updates (ESU)
Paid annual program providing critical security updates for up to 3 years after extended support ends. Available for select versions.
End of Life
No updates or support available. Continuing to run EOL systems exposes your infrastructure to security vulnerabilities and compliance risks.
Important Planning Considerations
Planning a Windows Server Upgrade?
Our infrastructure specialists can help you assess requirements, plan migrations, and provide competitive licensing quotes