Windows Server 2012 and earlier have reached EOL and no longer receive security patches. Assess risks to your ECS instances and take action.
Windows Server lifecycle overview
Alibaba Cloud's Windows Server public images are sourced from Microsoft's official releases and jointly supported by both companies. The following table lists the support lifecycle for each version. See Fixed Lifecycle Policy.
|
Version |
Release date |
End of Mainstream Support |
End of ELS |
End of Extended Security Updates (ESU) |
|
Windows Server 2025 |
2024-11-01 |
2029-10-09 |
2034-10-10 |
- |
|
Windows Server 2022 |
2021-08-18 |
2026-10-13 |
2031-10-14 |
- |
|
Windows Server 2019 |
2018-11-13 |
2024-01-09 |
2029-01-09 |
- |
|
Windows Server 2016 |
2016-10-15 |
2022-01-11 |
2027-01-12 |
- |
|
Windows Server 2012 |
2012-10-30 |
2018-10-09 |
2023-10-10 |
2026-10-13 |
|
Windows Server 2008 |
2008-05-06 |
2015-01-13 |
2020-01-14 |
2023-01-10 |
|
Windows Server 2003 |
2003-05-28 |
2010-07-13 |
2015-07-14 |
- |
Impact of Windows Server EOL
Per Microsoft's Windows Server support policy:
-
After January 14, 2020, Windows Server 2008 no longer receives software maintenance, including bug fixes and feature updates.
-
After October 10, 2023, Windows Server 2012 no longer receives software maintenance, including bug fixes and feature updates.
This EOL policy also affects Alibaba Cloud public images and ECS:
-
Existing ECS instances running Windows Server 2008 or 2012 continue to operate without interruption.
-
Alibaba Cloud support for Windows Server aligns with Microsoft's official lifecycle dates.
Recommended solutions for EOL
-
For new business
Create new instances with a Windows Server version still in Mainstream Support. Avoid EOL OS images to mitigate security risks.
-
For existing business
-
Short-term: If you use Windows Server 2012, subscribe to the ESU service to continue receiving security updates and bug fixes.
-
Long-term: Upgrade to a newer version for continued stability and support.
-
Upgrade to a newer version
An in-place upgrade preserves your existing applications, data, and settings while moving to a newer Windows Server version. See OS migration for detailed steps.
|
Source OS |
Destination OS |
|
Windows Server 2008 |
Windows Server 2016 |
|
Windows Server 2012 |
Windows Server 2016 |
Windows Server 2012 R2 |
Windows Server 2016 |
|
Windows Server 2019 |
|
Windows Server 2016 | Windows Server 2019 |
Windows Server 2022 | |
Windows Server 2019 | Windows Server 2022 |
Subscribe to the ESU service
If you cannot immediately upgrade, subscribe to Microsoft's ESU service for up to three years of critical security updates after the end-of-support date. ESU for Windows Server 2008 ended on January 10, 2023. Windows Server 2012 ESU is available until October 13, 2026. See Extended Security Updates.
References
See Overview of the OS lifecycle for lifecycle phases and EOL or ELS solutions.