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Microsoft Issues Mandatory June Patch Tuesday Cumulative Updates for Windows 11

They install mandatory security fixes plus new accessibility and performance features ahead of a larger 2026 quality update.

Overview

  • Microsoft published KB5094126 for 25H2/24H2 and KB5093998 for 23H2 that update Windows 11 build numbers to 26200.8457/26100.8457 and 22631.7079 respectively.
  • The release is mandatory because it contains June Patch Tuesday security patches that fix several vulnerabilities disclosed in prior months.
  • New, specific features include Bluetooth LE Shared Audio for two listeners, Task Manager NPU usage columns, Multi‑App Camera and a setup option to choose a custom user folder name.
  • Microsoft says it is not aware of any new issues with this Patch Tuesday release and the update also bundles broad reliability fixes for Windows Search, USB4/USB3, Windows Hello sign‑in, storage and Store download performance.
  • Microsoft confirmed work on a larger 2026 quality update that will restore a movable taskbar, aim to improve modern UI performance and reduce Copilot/ads surface, which IT teams should track when planning upgrades.