https://wccftech.com/windows-10-iso-files-are-now-out-for-version-2004-build-19035/

Microsoft released Windows 10 2004 Insider Preview Build 19035 last week. The company removed the watermark from this build, however, added that it's still not done working on the upcoming edition of the operating system. Version 2004 or branch 20H1 is the major update coming after the May 2019 Update. Since then Microsoft has also released Windows 10 November 2019 Update, but it's a small service pack-like update delivered to focus on performance improvements and stability.

If you are a Windows enthusiast and can't wait for the official release of Windows 10 2004, you can choose to clean install the upcoming version through the ISO. These latest files are available for Build 19035 that was released to Insiders in both the Fast and Slow rings last week. Slow ring release hints at the comparative stability of this build.