WIn 10 Creator version number

Since Windows NT first began, each new revision has been given a build number. This build number has been used consistently through all versions of Windows since, getting larger with each new version. Many builds don't get as far as a public release, being internal development builds within Microsoft. The public release of Windows XP started at build 2600.

The first public release of Windows 10 was build 10240. Cumulative updates don't change the major build number, but do increment the minor build number (the number after the 'dot'). The latest update for the original version is build 10240.17488.

Features updates are a new version of Windows 10 and have a new build number. The version name (1511, 1607 or 1703) is the year and month the build was finalized in the format YYMM. There is also a name for each version, so we have three ways to identify what version of windows you have, the name, the version and the build number. You can use them interchangeably.

Fall Update, version 1511, os build 10586
Anniversary Update, version 1607, os build 14393
Creators Update, version 1703, os build 15063

Newer build numbers are being released to Windows Insiders for testing, currently its up to build 16241
Announcing Windows 10 Insider Preview Build 16241 PC + 15230 Mobile

One of these builds will get fixed as the next public release, to be called the Fall Creators Update and (probably) version 1709.

Bree said:

It does say that if you use WinKey+R and run Winver - and if you look in Settings > System > About.

Seems msinfo32 has build under version... could be confusing for some - maybe they should put "Autumn Update" in there next?