The first way is to use a registry key method that sets the value to 21H1.

There are two ways to ensure you don’t move to 21H2 until you are ready. (Hopefully by now most users have installed 21H1.) So if you manage just one PC, or you’re an IT pro who doesn’t use patching tools such as WSUS or SCCM, that you rely on the targetreleaseversion setting to ensure you stay on 21H1. I remain a strong believer in installing feature updates when you want them. If you use old-fashioned IDE drives, you will have a less-than-ideal experience with Windows 10. I still highly recommend that if you have Windows 10 on any computer, be sure you have an SSD as your main hard drive. Microsoft indicated that users will see a routine deployment and servicing process and it’s expected to be a relatively quick installation. This enables the graphics card to 'to accelerate math-heavy workloads and uses its parallel processing to complete the required calculations faster, in many cases, than utilizing only a CPU.”

GPU compute support in the Windows Subsystem for Linux (WSL) and Azure IoT Edge for Linux on Windows (EFLOW) deployments for machine learning and other CPU intensive workflows.

A new deployment method for Windows Hello for Business that Microsoft calls “Cloud Trust.” It supports simplified passwordless deployments and “get to deployed state” within minutes.

This standard increases security against current and future side-channel attacks. In 2019, researchers used a side-channel attack to steal a WPA3 password.

New WPA3 H2E (Hash to element) standards for enhanced Wi-Fi security.

The features included in the release are mostly geared towards businesses, and include: Microsoft recently announced it’s getting ready to test and release Windows 10, version 21H2.

Windows 21h2 release date