https://www.bleepingcomputer.com/news/microsoft/windows-10-cumulative-update-kb4464218-and-kb4464217-released/

Today, Windows 10 April 2018 Update and Windows 10 Fall Creators Update are receiving another new patch with minor bug fixes.

The latest patch for Windows 10 April 2018 Update advances the build number to 17134.286 and if you're on Windows 10 Fall Creators Update, you'll be getting Build 16299.666.