Windows 10 build 20278

10.0.20278.1.fe_release.201208-1412
Build of Iron
OS familyWindows 10 (NT 10.0)
Version number10.0
Build number20278
Build revision1
Architecturex86, x64, ARM64
Build labfe_release
Compiled on2020-12-08

Windows 10 build 20278.1 is a build of Iron, the 21H1 development semester of Windows as a service. It was mentioned in the metadata file Desktop_Neutral_Forward_20278.1.fe_release.201208-1412.CompDB.xml when updating to build 20279.1.

Desktop_Neutral_Forward_20278.1.fe_release.201208-1412.CompDB.xml[edit | edit source]

<CompDB xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" CreatedDate="2020-12-10T08:00:22.9219464Z" Revision="1" SchemaVersion="1.2" BuildID="4a9dc6c0-c6fd-ca1a-5da2-4d75a1bdb92e" BuildInfo="fe_release.20278.1.201208-1412" OSVersion="10.0.20278.1" BuildArch="amd64" Type="Update" Name="Update~amd64~Desktop~~~Diff~20278.1.fe_release.201208-1412" TargetBuildID="ff36e8ae-47f3-4468-9b56-48367f310526" TargetBuildInfo="fe_release.20279.1.201209-1322" TargetOSVersion="10.0.20279.1" xmlns="http://schemas.microsoft.com/embedded/2004/10/ImageUpdate">