After closing up the Windows 10 Skip Ahead ring earlier this month, Microsoft is opening it back up for Insiders who are ready to test the next major feature update. Like past Skip Ahead enrollments, space in the branch is limited, so you'll want to register your Windows 10 device quickly if you're eager to get an early look at what's coming down the pike.
Skip Ahead Insiders will be among the first to test out the next feature update to follow Redstone 5, which is currently still in testing with Fast and Slow ring Insiders. While Redstone 5 is expected to launch this fall, the following feature update (expected to be codenamed 19H1) is expected to arrive for everyone sometime next spring if past is prologue.
If you're curious, you can opt in to test Skip Ahead builds by heading to your Windows Insider Program settings and choosing "Skip ahead to the next Windows release." If you opt to stay on the Fast or Slow rings, you'll continue to see Redstone 5 development builds until the feature update is released for everyone.