Windows 11 build 26100.1876

10.0.26100.1876.ge_release_svc_prod3.240918-1021
	Build of Windows 11 2024 Update
OS family	Windows 11 (NT 10.0)
Version number	10.0
Build number	26100
Build revision	1876
Architecture	AMD64, ARM64
Build lab	ge_release_svc_prod3
Compiled on	2024-09-18
SKUs
	Home (N, Single Language, China); SE (N); Pro (N, Single Language, China); Pro Education (N); Pro for Workstations (N); Education (N); Enterprise (Evaluation (N), G(N), N, LTSC (Evaluation)); IoT Enterprise (LTSC (Evaluation, Subscription))

Windows 11 build 26100.1876 is an update of build 26100.1. It can be obtained by installing the KB5043178 cumulative update, which was released to Windows Insiders in the Release Preview Channel on 23 September 2024. This build was distributed as a checkpoint cumulative update that contains incremental changes since build 26100.1742.

New features and changes[edit | edit source]

Features[edit | edit source]

The following features and changes introduced previously have been gradually rolled out:

The "Share" option under search results within the Search page in Start menu for quickly opening the Windows Share flyout (initially implemented in build 22635.3720 and can be activated manually by enabling the 45286411 velocity staging key)
The updated media controls on the lock screen (initially implemented in build 22635.4082)
Updates to the account manager in Start menu (initially implemented in build 22635.4145 and can be activated manually by enabling the 50564196 velocity staging key)
The "You're offline. Widgets are unavailable." message at the bottom of the lock screen when there's no Internet connection (initially implemented in build 22635.4145)
The ability to show a pop-up notification for asking users to plug in laptop if the battery level reaches 20% while Energy Saver is set to "Always On" (initially implemented in build 26120.1340)
The "Enhance pointer precision" option and the "Scrolling direction" dropdown menu (ported from the Mouse Control Panel applet) under Bluetooth & devices > Mouse in the Settings app (initially implemented in build 26227 and can be activated manually by enabling the 48433719 and 51190751 velocity staging keys)
The "Turn off HDR to conserve energy" energy recommendation (initially implemented in build 26241 and can be activated manually by enabling the 49607261 velocity staging key)
The ability to manually set separate power modes for plugged in and on battery via the System > Power (or Power & battery) page in the Settings app (initially implemented in build 26252 and can be activated manually by enabling the 39007349 and 48433719 velocity staging keys)
The redesigned Windows Update > Advanced options > Delivery Optimization page in the Settings app (initially implemented in build build 27686 and can be activated manually by enabling the 33235889 and 48433719 velocity staging keys)

The following features and changes introduced previously have also been ported to this build, albeit being disabled by default:

The Privacy & security > Recommendations & offers (perviously General) page in the Settings app (initially implemented in build 22635.3936 and can be activated manually by enabling the 49666228 and 48433719 velocity staging keys)

Settings[edit | edit source]

A new section has been added under Personlization > Text input for configuring the Copilot key on keyboard. Selecting the "Custom" option will show a flyout to select an UWP app to launch when pressing the Copilot key. This section is disabled by default, but can be activated manually by enabling the 52608608 velocity staging key.

Bugfixes[edit | edit source]

Fixed a memory leak that would occur when closing the window while a combo box has input focus.
Fixed the issue that was causing WebView2 apps to not detect input from Xbox 360 and Bluetooth controllers.