New Builds Released for July 20, 2026

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Key Points

  • Build 28020.2539 added to the Beta 26H1 channel.
  • Experimental channels receive no new build today – keep watching the blog for updates.
  • Release Preview builds for 24H2, 25H2, and 26H1 are.dict updated in the same cycle.

What is changing

The Windows blog states that the next round of Insider Preview build releases will include a new version for the Beta 26H1 channel: Build 28020.2539. It also lists that there are currently no new builds for any Experimental channels, though users should check back for future posts.

In addition, the Release yapmak Preview channels for 24H2, 25H2, and 26H1 are receiving today’s update, but the post does not list a specific build number for them. Users in those channels will get the latest tested features and patches that have passed the preview stage.

Why it matters

For developers, designers, and power users in the Windows Insider Program, the new Beta build means they can test the latest UI changes and security updates immediately. It gives them early access to potential fixes before the next major release.

If you are more cautious or rely on a stable machine, it may be best to stay on a previously approved build since Experimental channels currently see no changes and the Release Preview additions might not yet be fully vetted. The impact is therefore limited to a handful of users who regularly roll out the newest builds.

Let us know if you plan to install the new Beta build or if you prefer to hold off – share your experience in the comments below.

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