Active development Branch previously known as Fast ring or Early access channel has received a cumulative update and a Servicing stack update. CU is KB5000626 that carries nothing but test the servicing pipeline. This changes the version to Windows 10 21301.1010  and doesn’t bring anything new. On 27 January Windows 10 Build 21301.1000 was released and today on 01 February this cumulative update is rolled out.

Servicing stack update KB5000630 is also available to download Windows 10 Build 21301.1010 for Dev channel insider members.  However, there is no further release note or information is into the air for this update. You can install both the pushes through Windows update manually.

KB5000630 and KB5000626 Windows 10 Build 21301.1010 for Dev Channel

Here is the changelog –

Know issue –

Some insiders have reported that an IRQL_NOT_LESS_OR_EQUAL bugcheck occurs on their PC when they try to update to build 21301. We’re working on a fix and will let you know when it’s in an upcoming build.

Download links –

KB5000630 –


Source – Windows blog.

That’s all!!!