https://www.bleepingcomputer.com/news/microsoft/windows-10-february-2019-cumulative-updates-released-with-fixes/

It’s Patch Tuesday and new cumulative updates are rolling out for supported versions of Windows 10, including the October 2018 Update, the April 2018 Update and the Fall Creators Update. The focus of Windows 10's February 2019 cumulative update is on addressing the security issues and the general issues reported in the past few weeks.

The Patch Tuesday rollout for Windows 10 comprises cumulative updates for all supported versions, including the October 2018 Update (version 1809), but you won't get the update if you are using Creators Update or older with Pro or Home license. Users with Windows 10 Home and Pro license will receive the patches on Windows 10 Fall Creators Update, April 2018 Update, and October 2018 Update.