https://arstechnica.com/gadgets/2021/08/youll-be-able-to-run-windows-11-on-older-pcs-if-you-install-the-update-manually/

Microsoft officially announced some small additions to Windows 11's official CPU support list today, along with additional details about the operating system's security requirements. But another, quieter announcement should quell more of the system requirement-related angst: the Verge reports that Microsoft won't stop you from performing manual installs of Windows 11 on systems that don't meet the official requirements. That means that people running Windows 10 on unsupported systems won't be offered Windows 11 through Windows Update, but you'll still be able to update if you download an ISO file and perform an upgrade or a clean install manually.