With Microsoft releasing 26H1 Feature Build on 10 February 2026, we thought it would be a good idea to explain what the feature update is and how to ensure you are running a supported version of Windows 11.
Microsoft releases a major Windows 11 Feature Build once per year, and each version is only supported for a limited time. Running an unsupported version means no more security updates, bug fixes, or reliability patches, leaving your business exposed.
Priority IT ensure all our clients stay fully supported, secure and compliant by proactively managing Windows 11 feature‑build lifecycles.
Windows 11 release and support schedule
How to check your Windows 11 feature build
Option 1: WINVER – Press Windows + R, type ‘winver’ and press Enter.
Option 2: Settings → System → About → Windows Specifications.
How Priority IT keep clients secure:
- Proactive monitoring: We continuously track feature build versions, build numbers and support status across of our clients devices.
- Staged, controlled rollouts: We deploy feature builds in to avoid disruption and ensure stability.
- Automated update enforcement: We push required feature builds automatically and remediate any failed updates, ensuring no device falls behind.
- Compatibility and risk checks: Before deploying a new build, we assess hardware compatibility, application dependencies and Microsoft-published known issues
| Version | Release Date | Support Ends | Supported Now? |
| 26H1 | 10 Feb 2026 | 14 Mar 2028 | Yes |
| 25H2 | 30 Sept 2025 | 12 Oct 2027 | Yes |
| 24H2 | 1 Oct 2024 | 13 Oct 2026 | Yes |
| 23H2 | 31 Oct 2023 | 10 Nov 2026 | Yes |
| 22H2 | 20 Sept 2022 | 8 Oct 2024 | No |
| 21H2 | 5 Oct 2021 | 10 Oct 2023 | No |
