End of Mainstream Support for Windows Server 2022 · CIAD-2026-0042
CERT-IN advisory CIAD-2026-0042 · 20 Aug 2026
Official title
CIAD-2026-0042 : A End of Mainstream for Windows Server 2022
Official record
Open source pageSummary
Check the official recordWhat changed
Microsoft ends mainstream support for Windows Server 2022 on October 13, 2026. The October 2026 security update is the final mainstream support update. The software transitions to extended support after this date. Extended support includes monthly security updates at no additional cost until October 14, 2031. Microsoft recommends an upgrade to Windows Server 2025 to maintain full mainstream support status.
What you must do
- Plan an upgrade to Windows Server 2025 to maintain mainstream support.
Key dates
- End of mainstream support
- 13 Oct 2026
- End of extended support
- 14 Oct 2031
Document text
CERT-In Advisory CIAD-2026-0042
A End of Mainstream for Windows Server 2022
Original Issue Date: August 20, 2026
Software Affected
Windows Server 2022
Description
Microsoft has announced that Windows Server 2022 is approaching the end of its mainstream support lifecycle. On October 13, 2026, Windows Server 2022 will reach the end of mainstream support. The October 2026 security update will be the last mainstream support update available for this version.
Upon reaching the end of mainstream support, Windows Server 2022 will transition to extended support. This transition includes security updates at no additional cost, and the system will continue to receive monthly security updates through October 14, 2031.
To ensure environments remain fully supported under mainstream support, Microsoft recommends planning an upgrade to Windows Server 2025, which is the latest Long-Term Servicing Channel (LTSC) release.
Vendor Information
Microsoft http://learn.microsoft.com/en-us/windows/release-health/windows-message-center#4933 https://learn.microsoft.com/en-us/lifecycle/products/windows-server-2022
References
Microsoft http://learn.microsoft.com/en-us/windows/release-health/windows-message-center#4933
Source details
- Source
- cert-in
- Type
- advisory
- Published by source
- 20 Aug 2026
- Document number
- CIAD-2026-0042
- Issuing division
- CERT-In
- Coverage area
- Not available