Windows 10 ‘Vanadium’ is the successor of 19H1

Traditionally, Microsoft has developed Windows releases using codenames so that secrecy about product features is kept, and unofficial information doesn't get leaked. Each release of Windows 10 also has its own code name. The initial release was internally named 'Threshold', which was followed by 'Threshold 2'. Five releases after it were codenamed 'Redstone'. This has changed.

For reference, here are the previous codenames for Windows 10 releases:


  • 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

As you may already know, the upcoming version of Windows 10 which is due for release in the first half of the next year has the '19H1' codename. This version will probably be made available publicly in April 2019. Now information has leaked that the version that will be released after 19H1 is codenamed 'Vanadium'. For those of you who are not aware, Vanadium is a chemical element with atomic number 23. The release following that is rumored to be codenamed Vibranium.

So it looks like Microsoft is going to use real and fictitious names of elements from the periodic table as Windows codenames. That's probably because Windows engineering has moved into the Azure group, which uses the same naming scheme.

So, instead of '19H2' which everyone expected to see as the codename for Windows 10 version 1909, it will be internally called 'Vanadium'. Don't be surprised to see Windows 10 Codenamed 'Chromium' some day.
For those who are curious about past codenames, here they are for notable releases starting with Windows 3.1.

  • Windows 3.1: Janus
  • Windows for Workgroups 3.x family: Sparta, Winball, Snowball
  • Windows NT 3.1: NT OS/2
  • Windows NT 3.5: Daytona
  • Windows 95: Chicago
  • Windows 95 OSR2: Detroit
  • Windows NT 4.0: Shell Update Release
  • Windows 98: Memphis
  • Windows 2000: No codename
  • Windows Me: Millennium
  • Windows XP: Whistler
  • Windows XP Service Pack 2: Springboard
  • Windows Vista: Longhorn
  • Windows 7: Blackcomb, Vienna
  • Windows 8: Metro/Jupiter
  • Windows 8.1: Blue

Source: ZDNet

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Author: Sergey Tkachenko

Sergey Tkachenko is a software developer who started Winaero back in 2011. On this blog, Sergey is writing about everything connected to Microsoft, Windows and popular software. Follow him on Telegram, Twitter, and YouTube.

7 thoughts on “Windows 10 ‘Vanadium’ is the successor of 19H1”

  1. I can suggest some names
    bug basket
    disaster (that should be good for a lot of releases)

    The trouble is, those names are not so secret

  2. There was a codename for Windows 2000. It’s called MemphisNT/NT 5.0. I can verify this with a site that documents every single build of Windows ever compiled. The site is The Collection Book and the page with Windows 2000 is

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