Windows 10 build 21317
| Build of Cobalt | |
| OS family | Windows 10 (NT 10.0) |
|---|---|
| Version number | 10.0 |
| Build number | 21317 |
| Build lab | co_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 Twitter post, stating that the co_release branch was created around the time this build was compiled.[1]