Announcing Beta Preview Build 26220.8370 (opens in new tab)

--- layout: Conceptual title: Beta Preview Build 26220.8370 - Windows Insider Program | Microsoft Learn canonicalUrl: breadcrumb_path: /windows-insider/breadcrumb/toc.json uhfHeaderId: MSDocsHeader-Windows recommendations: true feedback_system: None ms.date: 2026-05-08T00:00:00.0000000Z description: Release notes for Beta Preview Build 26220.8370 author: Schlines manager: chmorri ms.tgt_pltfrm: na ms.author: stlines ms.localizationpriority: high ms.topic: article ms.service: windows-insider ...