Windows 10 build 21317

10.0.21317.co_release
Build of Cobalt
OS familyWindows 10 (NT 10.0)
Version number10.0
Build number21317
Build labco_release

Windows 10 build 21317 is an unconfirmed build of Cobalt, the 21H2 development semester of Windows as a service. It was mentioned in an image shown in a post on Windows Central.[1]

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