https://techcrunch.com/2018/10/02/the-windows-10-october-2018-update-is-now-available/

Microsoft today announced that the Windows 10 October 2018 update is now available. The company made the announcement at a small press event in New York, though it’s obviously no surprise that Microsoft decided to roll out the October update in the month that gave it its name.

As usual, these rollouts take a while. You can force the update now, but for those who want to wait, Microsoft will start the automatic updates on October 9.