Windows 10 Iron

Windows 10 Iron
Version of Microsoft Windows
Windows 10 logo and wordmark.svg
20324 Enterprise Desktop.png
OS familyWindows 10 (NT 10.0)
Preliminary name
Architecturex86, x64, ARM64
Latest build10.0.20279.1.fe_release.201209-1322 (Dev Channel)
10.0.20324.3.fe_release.210327-1200 (Docker container images)
Release date
Support end
Server counterpart
Windows Server 2022
Windows 10 Manganese
Replaced by
Windows 10 Cobalt

Windows 10 Iron is the 21H1 development cycle of Windows 10. It was only released as a series of Insider Preview builds between the second half of June 2020 and the first half of December of that year to the Dev Channel, although in early 2021 during the development of its server counterpart Windows Server 2022, a series of client builds were released as Docker layer images.

List of known builds[edit | edit source]

Pre-Insider Preview[edit | edit source]

Insider Preview (RS_PRERELEASE)[edit | edit source]

Insider Preview (FE_RELEASE)[edit | edit source]

Docker container builds[edit | edit source]

Localization (RS_LOC)[edit | edit source]