What’s New in Windows 10 Version 20H2 Cumulative Update KB5003173 May 12, 2021 07:03 GMT New update for Windows 10 version 20H2 The May 2021 Patch Tuesday rollout obviously includes a new cumulative update for Windows 10 version 20H2, which right is the most recent stable version of the operating system. The Windows 10 version 20H2 cumulative update is KB5003173, and it comes with several security improvements, which makes total sense given this is a Patch Tuesday rollout. According to the official changelog, this cumulative update includes security updates for Bluetooth drivers, but also other security refinements for the operating system when basic operations are performed. And last but not least, it comes with updates for the Windows OLE (compound documents) security.