A new TargetReleaseVersion policy available in Windows 10 version 1803 and higher allows you to specify which feature update version of Windows 10 you would like your computer to move to and/or stay on until the version reaches end of service or you reconfigure this policy.
If you don’t update this policy before the device reaches end of service, the device will automatically be updated once it is 60 days past end of service for its version.
If you specify a TargetReleaseVersion the same as the current version, Windows 10 will stay on this version until it reaches end of service.
If you specify a TargetReleaseVersion higher than the current version, Windows 10 will directly update only to the specified version even if a higher version is available.
This tutorial will show you how to specify a TargetReleaseVersion version of Windows 10 you want to move to or stay on in Windows Update until it reaches end of service in Windows 10 Pro, Enterprise, or Education.