What comes after Windows 10 19H1? Vanadium

Microsoft is shifting its Windows 10 codename scheme, yet again, starting with the feature update which is slated to follow '19H1,' sources say.
Written by Mary Jo Foley, Senior Contributing Editor

Earlier this year, Microsoft management split the Windows division in half, moving Windows engineering into the same group as Azure engineering. It was only a matter of time until Windows and Azure would start sharing the same codenaming scheme, right?

The April 2019 release of Windows client, codenamed Windows 10 19H1, is not using the Azure naming convention. But the release after 19H1 -- due around October 2019 or so -- will, my sources say.

The Azure team uses the elements for codenames. The current Azure codename for the 19H1 deliverables is "Titanium," (Ti) I hear, but the Windows client team didn't end up using that, as they'd already started employing internally and externally "19H1."

Also: Microsoft Surface: Rumored specs, features, leaks, price, release date CNET

The Windows 10 feature release that some of us were expecting to be called 19H2 will actually be called "Vanadium," (V) my contacts say, in keeping with the Azure naming scheme. If the team sticks with the order of the table of elements, the first Windows feature release in 2020 would be called "Chromium" (Cr). Obviously, that could create for more than a bit of confusion, given Google's use of that term. As a result, I'm hearing the team is likely going with a made-up element name for that release, likely "Vibranium." (Vibranium is what Captain America's shield is made out of, as I've been schooled.)

I've asked Microsoft to confirm the Vanadium and Vibranium codenames for the coming releases of Windows, but no word back so far. (I'm not holding my breath.) Update: A spokesperson said Microsoft had no comment.

A quick refresher on the Windows 10 feature update codenames to date:

  • Threshold 1: Windows 10/1507
  • Threshold 2: Windows 10 November Update/1511
  • Redstone 1: Windows 10 Anniversary Update/1607
  • Redstone 2: Windows 10 Creators Update/1703
  • Redstone 3: Windows 10 Fall Creators Update/1709
  • Redstone 4: Windows 10 April 2018 Update/1803
  • Redstone 5: Windows 10 October 2018 Update/1809
  • 19H1: Windows 10 April 2019 Update/1903 (?)

The codename Threshold, for those wondering, derives from the planet around which the first halo ring orbited in the original Halo game launched back in 2001. The Redstone codename came from Minecraft, which Microsoft acquired when it bought Mojang.

Even though "Redstone 5," a k a the Windows 10 October Update/1909 still has yet to re-materialize, planning and codenames don't stand still.

Also: What is the best way to reinstall Windows 10? TechRepublic

Update: As The Walking Cat on Twitter reminded me, the Surface team also seems to have been using the elements, as well, as some of their codenames. Among the codenames for the latest Surface devices were "Caprock," "Croton" and "Forks," which correspond with the Ca, Cr and F chemical elements, The Cat pointed out.

A brief history of Microsoft's Surface: Missteps and successes

Previous and related coverage:

How to install, reinstall, upgrade and activate Windows 10

Here's everything you need to know before you repair, reinstall, or upgrade Windows 10, including details about activation and product keys.

After Windows 10 upgrade, do these seven things immediately

You've just upgraded to the most recent version of Windows 10. Before you get back to work, use this checklist to ensure that your privacy and security settings are correct and that you've cut annoyances to a bare minimum.

How to upgrade from Windows 10 Home to Pro for free

You've got a new PC running Windows 10 Home. You want to upgrade to Windows 10 Pro. Here's how to get that upgrade for free. All you need is a Pro/Ultimate product key from an older version of Windows.

Microsoft deprioritizes its touch-enabled Office Mobile apps for Windows

Microsoft is putting the mobile versions of its Office applications for Windows on the back burner, and is instead prioritizing development for the Win32 and web versions of those applications.

Most Microsoft Surface laptops regain recommendations from Consumer Reports

Consumer Reports is restoring its 'recommended' designation for the Surface Laptop, Pro and Book 2, but is not awarding it to the Surface Go.

Related stories:

Editorial standards