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Windows Insider

Build 26120.1912

Build 26120.1912: Windows Insider Dev Channel, September 2024. 6 GHz mobile hotspot support and controller input fixes

In short

Dev Channel Insiders get a gradual 6 GHz Mobile Hotspot option, plus fixes for Task Manager, IME memory use, and controller input in WebView2 apps.

Does it affect you? Applies to: Devices enrolled in the Windows Insider Program in the Dev Channel.

Build
26120.1912

This is a test build for people in the Windows Insider Program. Features in it can change, be removed, or never reach regular Windows releases.

What changes

Fixes 4 changes

Task Manager

Gradual rollout 2 items

For: Insiders with the latest-updates toggle on

  • Task Manager's Settings page no longer might have an unexpected white background.1
  • Task Manager no longer stops responding when you switch from a high contrast theme to a normal theme.2

Input Method Editor (IME)

Gradual rollout

For: Insiders with the latest-updates toggle on

  • Closing a window after a combo box has input focus no longer causes a memory leak.3
    Fixes a possible memory leak when a window containing a focused combo box closes.

WebView2 apps

Gradual rollout

For: Insiders with the latest-updates toggle on

  • WebView2 apps can detect input from Xbox 360 and Bluetooth controllers.4

Improvements 3 changes

General

Gradual rollout

For: Insiders with the latest-updates toggle on

  • A small set of general improvements and fixes improves the experience on PCs running this build.5

Mobile Hotspot

Gradual rollout

For: Insiders with compatible chips and updated drivers

  • Mobile Hotspot can use 6 GHz connections on compatible PCs with the required chips and updated drivers. It uses 6 GHz only when you explicitly enable the band.6
    The setting appears under Settings > Network & internet > Mobile hotspot when editing hotspot properties. Not all chips that support 6 GHz Wi-Fi support 6 GHz Mobile Hotspot.

Open Source Software

Gradual rollout

For: Insiders with the latest-updates toggle on

  • Text files include attributions for Rust open-source software components.7
    Adds attributions to txt files for Rust OSS components.

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2024-09-30
Type
Windows Insider build
VersionBuildChannel
— 26120.1912 Dev Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (7)
  1. 1. Its Settings page might have a white background when it should not. blogs.windows.com
  2. 2. It stops responding when you switch from a high contrast theme to a normal theme. blogs.windows.com
  3. 3. When a combo box has input focus, a memory leak might occur when you close that window. blogs.windows.com
  4. 4. They do not detect input from Xbox 360 and Bluetooth controllers. blogs.windows.com
  5. 5. This update includes a small set of general improvements and fixes that improve the overall experience for Insiders running this build on their PCs. blogs.windows.com
  6. 6. For compatibility with existing devices, the mobile hotspot will only use 6 GHz when explicitly enabled. blogs.windows.com
  7. 7. This update adds attributions to txt files for Rust OSS components. blogs.windows.com
Checked automatically: 8 of 8 checks passed, 7 quoted passages
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: passed

A second AI read the text against the sources: correctness 5/5, clarity 4/5, completeness 5/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake