While I couldn't find an official changelog for build "ces-x64frev-en-us-dv9," based on the typical progression of Windows Insider builds, we can expect a range of improvements and new features. Some areas that might have received attention include:
So this is not beginner “what is a register” content. This is of an advanced, hands-on firmware reversing course or toolset. ces-x64frev-en-us-dv9