https://wccftech.com/microsoft-skip-ahead-slots-windows-10-19h2/

Earlier this week, we reported that Microsoft was considering to begin simultaneously testing Windows 10 October 2019 Update (version 1909) along with the currently work-in-progress version 1903. The company has now opened its Skip Ahead program to enable eager Windows Insiders opt in to receive super early builds of the Windows version that will be released at the end of this year.

As always, slots are limited and Microsoft doesn’t allow any Insiders to get in once Skip Ahead is full. If you are okay with dealing with some damning bugs and enjoy some early look at the new features, this is the perfect opportunity for you to opt in to Skip Ahead. However, if you don’t like new builds bringing more bugs than features, it’s better to wait for when 19H2 builds are available for the Fast and Slow Ring Insiders, which should happen around/after April.