https://wccftech.com/windows-10-21h1-build-20241-1005-kb4589464-is-out/ > Image: @WindowsInsider (Twitter) > Microsoft has released a cumulative update for Windows 10 Dev Channel Insiders who are currently testing the next version of the operating system. The company said that today's  Windows 10 21H1 Cumulative Update Build 20241.1005 (KB4589464) "does not include anything new and is designed to test our servicing pipeline."