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Microsoft releases first Windows 10 20H1 build to Insiders in the Slow ring

Windows Update
Windows Update (Image credit: Windows Central)

What you need to know

  • Windows 10 build 19013 is now available on the Insider Slow ring.
  • This is the first 20H1 build to hit the Slow ring.
  • Microsoft is expected to compile the "final" 20H1 build in December.

After months of waiting, Microsoft has finally released a 20H1 build for Insiders in the Slow ring. Today's build is 19013, the same one released for Insiders in the Fast ring last week, but with a couple of additional fixes for Slow ring users to enjoy.

Windows 10 build 19013 includes all the changes 20H1 users have been testing so far, including a new Cortana experience, improvements to Windows Settings, more kaomoji, and plenty more. You can check out all the new features and changes in our complete changelog.

Now that 20H1 is in preview with Insiders in the Slow ring, Microsoft can start testing the next major Windows 10 feature update with Insiders in the Fast ring. Microsoft had originally intended to roll out the first Manganese build at some point this week, but I'm told this might be postponed slightly for logistical reasons. There's no rush to begin testing the next release right now anyway.

We're expecting Microsoft to compile a "final build" of Windows 10 20H1 sometime in December, earlier than the usual March time-frame for a final build. This is because Windows is now built under Azure's "semester" based schedule, which ends in December and June respectively.

We're in the final stages of 20H1's development cycle, and now that Insiders in the Slow ring are testing it, Microsoft can gear up and start testing the next version of Windows 10 as well. Are you an Insider in the Slow ring? What feature are you most looking forward to?

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Zac Bowden
Zac Bowden

Zac Bowden is a Senior Editor at Windows Central. Bringing you exclusive coverage into the world of Windows 10 on PCs, tablets, phones, and more. Also an avid collector of rare Microsoft prototype devices! Keep in touch on Twitter: @zacbowden.

  • So basically, as of now 19H2 is not out yet and 20H1 will come in one month?
  • No, 20H1 will still release in early 2020. It is just feature complete, and development will be done next month. In theory, this will give 20H1 ample time in the Release Preview ring to get testing and bug fixes. This way we don't end up with a release like the one from October 2018.
  • They are expecting to release 20H1 around the same time as the '03 releases. The ample time in RP will be very good indeed.