Windows 11 build 22478

Windows 11 build 22478 is the seventh Insider Preview build of Nickel, the 22H1 development semester of Windows as a service. This build was released to the Dev Channel on 14 October 2021.

Changes

 * The Segoe UI Emoji font has been updated to feature a new Fluent design, alongside with added support for Unicode version 13.1.
 * The updated Korean IME, which was reintroduced for the fourth time in build 22454, is now available to all users enrolled into the Dev Channel.
 * Windows Hello now supports logins via an external monitor with an attached camera.
 * The mouse wheel can now be used to adjust the volume level if the cursor is hovered over the taskbar volume icon.
 * The language addition dialog has recieved a small design update in order to be in line with the Fluent design standard.
 * Under-the-hood optimizations to the Windows Search Indexer platform as part of an effort in reducing disk space usage.