Windows 10 version 20H2
Windows 10 October 2020 Update (codenamed "20H2") is the tenth major update to Windows 10 as the cumulative update to the May 2020 Update. It carries the build number 10.0.19042. Version history. The first preview was released to Insiders who opted in to Beta Channel on June 16, 2020. The update began rolling out on October 20, 2020. Notable changes in the October 2020 Update include: