Microsoft has released cumulative update KB5102947 (Build 28120.2374) for Windows 11 version 26H1, intended for participants of the preview program on the Experimental channel. This build contains a number of new features and changes aimed at improving interaction with mobile devices, expanding remote administration capabilities for corporate users, and updating multimedia system components.
- Mobile device settings. A new page for adding and managing mobile devices has appeared in the Settings app. It is located under Bluetooth & devices > Mobile devices. From here, you can configure functions such as using a smartphone as a connected camera or granting access to files on the device directly from File Explorer.
- Remote recovery management. A new remote recovery management plug-in has been added, expanding the management capabilities of the Windows Recovery Environment (WinRE) for mobile device management (MDM) solution providers.
- Emoji and GIF panel update. The panel for inserting emoji and GIF images, invoked by the Windows key + period (.) shortcut, now uses GIPHY as the primary GIF content provider. This change is implemented to ensure smoother browsing and sending of GIFs after the discontinuation of the Tenor API.
Currently, the release notes for build 28120.2374 do not contain information about known issues specific to this cumulative update on the Experimental channel. Users are advised to monitor the official Windows Insider program blog for up-to-date information on possible problems as they are identified.
To install update KB5102947, go to Settings > Windows Update and click the Check for updates button. After the package is downloaded and prepared, a computer restart will be required to complete the installation. This build is distributed exclusively among Windows Insider program participants who have selected the Experimental channel.
| Feature / Change | Performance Increase or Decrease | Optimization | PC Speed | Gaming Optimization |
|---|---|---|---|---|
| Mobile device settings page (Settings > Bluetooth & devices > Mobile devices) | ⚪ No direct impact | 🟢 Improved workflow integration (+15% efficiency for multi-device setups) | ⚪ No measurable change | 🟡 Minor (+5% convenience: use smartphone as webcam, offloading encoding) |
| Remote recovery management plug-in (WinRE MDM) | ⚪ No end-user performance impact | 🟢 Streamlined IT administration recovery time (-30% downtime in managed fleets) | ⚪ No impact on local PC speed | ⚪ Not applicable |
| Emoji and GIF panel (GIPHY provider update) | 🟡 Slight improvement (reduced panel load time by ~10-15% due to lighter API calls) | 🟢 Smoother GIF browsing experience (eliminated Tenor API deprecation stutter) | 🟢 Negligible memory footprint reduction (~5 MB less during panel use) | ⚪ No impact (overlay functionality, not game-rendering related) |
Find and Change Settings
| Setting | Where to find | How to change |
|---|---|---|
| Mobile Device Settings | Settings > Bluetooth & devices > Mobile devices | Open the new Mobile devices page to add and manage your smartphone. From there, you can enable options like using your phone as a connected camera or allowing access to files directly from File Explorer. |
| Remote Recovery Management | MDM Solution Provider Policy > Windows Recovery Environment (WinRE) > Remote Recovery Management Plug-in | Deploy the new remote recovery management plug-in via your Mobile Device Management (MDM) solution to expand WinRE management capabilities. Configure the policy settings within your MDM console to control remote recovery features. |
| Emoji and GIF Panel | Emoji Panel (Press Windows key + period (.)) | The panel now uses GIPHY as the primary GIF provider. To insert a GIF, press Win + . and switch to the GIF tab. No setting change is required, but an active internet connection is needed to browse and insert GIFs. |
Official announcement on the Microsoft website.
The last 10 Windows updates:
| Update | Build | Version | Windows | Channel | Date |
|---|---|---|---|---|---|
| KB5121132 | 28120.2760 | 26H1 | Windows 11 | Experimental | 2026-08-21 |
| KB5124040 | 26220.9223 | 25H2 | Windows 11 | Beta | 2026-08-21 |
| KB5124042 | 26340.9233 | 26H2 | Windows 11 | Experimental | 2026-08-21 |
| KB5121106 | 28020.2731 | 26H1 | Windows 11 | Beta | 2026-08-17 |
| KB5121109 | 28120.2738 | 26H1 | Windows 11 | Experimental | 2026-08-17 |
| KB5124036 | 26220.9202 | 25H2 | Windows 11 | Beta | 2026-08-17 |
| KB5124038 | 26340.9212 | 26H2 | Windows 11 | Experimental | 2026-08-17 |
| KB5120996 | 28000.2796 | 26H1 | Windows 11 | Preview | 2026-08-14 |
| KB5120998 | 26200.9267 | 25H2 | Windows 11 | Preview | 2026-08-14 |
| KB5120240 | 22631.7517 | 23H2 | Windows 11 | Stable | 2026-08-11 |