On 20th October 2020, Windows 10 version 20H2 ISO media was made available.
Due to a error in the Microsoft 20H2 WIM metadata on the media, please see the following TID if you wish to deploy 20H2.
TID: Windows 10 version 20H2 support with Imaging Toolkit
For the latest Windows ADK / WinPE support details please visit this blog.