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The Update Bureau

Filtered Update Catalog

Preview — All products

1–25 of 124 updates, newest first.

Monthly briefings: Nov 2026 Oct 2026 Sep 2026
Terms & labels

Label legend

Security
Contains fixes for security vulnerabilities.
Preview
Optional update with new features and fixes, without new security patches. Its content joins the next Patch Tuesday update.
Out-of-band
Released outside the usual monthly schedule, usually to fix a specific problem.
Cumulative
Includes everything from earlier updates, so the latest one is enough.
Zero-day
Microsoft reports a vulnerability that was already exploited or publicly known when the fix came out.
Windows Insider Preview
A pre-release build for testers, not meant for everyday PCs.
Updated
We revised this page after publishing because Microsoft changed its notes.
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Oct 28, 2026 Optional preview
2 updates
Sep 22, 2026 Optional preview
2 updates
Aug 27, 2026 Optional preview
4 updates
Jul 28, 2026 Optional preview
2 updates
Jun 23, 2026 Optional preview
2 updates
May 26, 2026 Optional preview
5 updates
Apr 30, 2026 Optional preview
2 updates
Mar 26, 2026 Optional preview
2 updates
Feb 24, 2026 Optional preview
2 updates
Jan 29, 2026 Optional preview
2 updates