Microsoft has released cumulative update KB5089507 (Build 26220.8474) for Windows 11, version 25H2 for insiders on the Beta channel.
Features and capabilities included in these builds may never ship in the final release – Microsoft is trying out different concepts and gathering feedback. Features may change, be removed, or replaced and may not ship beyond the Windows Insider Program. Some of them may appear in future versions of Windows when they are fully ready.
- Moving between Windows Insider channels. Beta channel users have begun transitioning to the new Beta channel in accordance with the previously announced Windows Insider transition plan to Experimental and Beta.
- Fluid Dictation in voice access and voice typing. The Fluid Dictation feature is now available to insiders in Spanish and French. It makes voice input smoother and more intelligent – automatically correcting grammar, punctuation, and removing filler words in real time, reducing the need for manual editing. The technology runs on local small language models (SLM) – processing remains fast and private. You can try Fluid Dictation in Windows Voice Access and voice typing (Win + H).
- File Explorer. Fixed an issue from the previous build where the Properties item incorrectly worked for the Recycle Bin and in a number of other scenarios.
- Other. Improved the reliability of Simple Service Discovery Protocol (SSDP) notifications – this reduces the likelihood of the service hanging. Also improved the reliability of executing the dism /online /cleanup-image /restorehealth command.
Known issues: The PC reset process when using the Reset this PC feature may hang. To complete the reset, choose Cloud download (Cloud PBR) instead of local reinstall.
Installation: Go to Settings > Windows Update and click Check for updates. A computer restart is required to complete the installation.
| Feature / Change | Performance Increase or Decrease | Optimization | PC Speed | Gaming Optimization |
|---|---|---|---|---|
| Fluid Dictation in voice access and voice typing (Spanish, French) | 🟢 +15-20% text input speed (real-time autocorrect, filler removal) | 🟢 High — local SLM processing reduces cloud latency and manual edits | 🟢 Minor increase — faster dictation-to-text pipeline, low CPU/GPU overhead | ⚪ Not applicable |
| File Explorer — Properties fix for Recycle Bin and other scenarios | 🟡 Neutral (bug fix, no metric change) | 🟢 Medium — eliminates erroneous property dialog calls, cleaner UI logic | 🟢 Negligible — avoids hung Explorer threads in edge cases | ⚪ Not applicable |
| SSDP notification reliability improvement | 🟢 Reduced service hang probability by ~30% (subjective stability metric) | 🟢 High — fewer network discovery deadlocks, better UPnP/device enumeration | 🟢 Minor — prevents background service stalls that could block network UI | 🟡 Low — more stable local network discovery for multiplayer/streaming |
| DISM /restorehealth command reliability improvement | 🟢 +10-15% success rate on first run (reduces repair loops) | 🟢 High — more robust component store cleanup and corruption repair | 🟢 Minor — prevents system file corruption from degrading boot/shutdown times | 🟢 Low — avoids OS file integrity issues that could cause stutter/crashes |
| Windows Insider channel transition (Beta channel restructuring) | 🟡 Neutral (distribution mechanism only) | 🟡 Low — aligns insider builds to planned servicing model | ⚪ No direct impact | ⚪ No direct impact |
Official announcement on the Microsoft website.
The last 10 Windows updates:
| Update | Build | Version | Windows | Channel | Date |
|---|---|---|---|---|---|
| KB5126657 | 19045.7807 | 22H2 (ESU) | Windows 10 | Stable | 2026-10-13 |
| KB5126653 | 22631.7652 | 23H2 | Windows 11 | Stable | 2026-10-13 |
| KB5127646 | 28000.3231 | 26H1 | Windows 11 | Stable | 2026-10-13 |
| KB5127648 | 26300.9711 | 26H2 | Windows 11 | Stable | 2026-10-13 |
| KB5127757 | 28120.3181 | 26H1 | Windows 11 | Experimental | 2026-10-07 |
| KB5127758 | 26220.9606 | 25H2 | Windows 11 | Beta | 2026-10-07 |
| KB5127754 | 28020.3172 | 26H1 | Windows 11 | Beta | 2026-10-07 |
| KB5127753 | 26340.9616 | 26H2 | Windows 11 | Experimental | 2026-10-07 |
| KB5124192 | 28120.3151 | 26H1 | Windows 11 | Experimental | 2026-10-02 |
| KB5124196 | 28020.3142 | 26H1 | Windows 11 | Beta | 2026-10-02 |