Microsoft has released an optional update for Windows 10 version 1809 to fix a bug that causes printing issues. KB4541331 will advance your computer to Windows 10 Build 17763.1131 and it will install only after you check for updates manually. Microsoft is aware of this issue at least one known in one known vulnerability in Windows 10, which was released in November 2018, and it is now available for your device. If you’re still using the dated Windows 10 October 2018 Update, you can open the Settings app and click the Windows Update option to install the patches.
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-cumulative-update-kb4541331-released/