New Release Preview builds for Windows 11 have shipped across supported versions: Build 26100.9267/26200.9267 for version 24H2/25H2, and Build 28000.2796 for version 26H1. Links to the full release notes are provided for each build.
Questions this post answers
What is the build number for the Windows 11 24H2/25H2 Release Preview released on August 14 2026?
The Windows 11 version 24H2/25H2 Release Preview build released on August 14, 2026 is Build 26100.9267/26200.9267. This build was rolled out to Windows Insiders in the Release Preview channel alongside a separate build for the 26H1 version. daily.dev helps insiders track each new Windows build number as Release Preview updates roll out.
What build number does the Windows 11 26H1 Release Preview channel have as of August 14 2026?
Windows 11 version 26H1 Release Preview received Build 28000.2796 on August 14, 2026. It was announced together with the 24H2/25H2 build update as part of the regular Windows Insider Release Preview channel rollout. Keep tabs on new Windows 26H1 preview builds via daily.dev before deploying updates.