Windows 10 Insider Preview Build 18850 

Hello Windows Insiders, today we are releasing 20H1 Build 18850 to Windows Insiders who have opted into Skip Ahead. Remember – these builds are from the 20H1 development branch. Some things we are working on in 20H1 require a longer lead time. We will begin releasing 19H2 bits to Insiders later this spring after we […]

情報源: Announcing Windows 10 Insider Preview Build 18850 | Windows Experience Blog

Skip A Headむけ20H1の新ビルド。また、今春後半に19H2がInsider Preview(Fast Ring?)向けに公開され、19H1が「ほぼ完成して準備ができた」状態で、品質の向上のため、ドライバー開発者向けのプレビューおよびリリースプレビュー向けに公開するようです。