Windows Server build 22538.1000

Windows Server build 22538.1000 is an Insider Preview build of Windows Server based on the Nickel codebase. It was released to Windows Insiders on 19 January 2022 along with its client counterpart.

Voice access
The ability to use the touch keyboard with voice access has been added.

Task Manager
The column name "Tile updates" in App History tab has been renamed to "Notifications".

Shell

 * The focus rectangle in Alt, task view, and snap assist has been tweaked to match the customized accent color.
 * The updated IMEs and touch keyboard designs has been available to the login screen.
 * The default account picture on several user interfaces (e.g. Start menu, login screen, Settings) has been updated to match the Windows 11 style and supports transparency.
 * However, the old picture is still be used on some devices that are upgraded to this build.
 * When the custom mode is used, the background of Alt, task view, and snap assist will follow the default Windows light/dark mode instead of the default app mode.

Settings

 * The "display calibration" section, previously available as a separate Settings page, has been moved to HDR subpage under Display page.
 * The unused "try out your setup" box from Custom Theme subpage under Personalization pages has been removed.

Miscellaneous

 * The discoverability of certain input features in various areas across the OS has been improved.
 * The HTTPS boot for Hyper-V Generation 2 virtual machines has been added.

Taskbar
Immediately following the release of this build, a new version of the hidden icons flyout may be accidentally enabled, leading to the respective button being duplicated on some devices. This bug also causes the taskbar corner area to collapse in size and align to the top rather than centered.

The new hidden icons flyout has been automatically disabled since 21 January, two days after the public release of this build.

User Account Control
The IME candidate window may not show up on a UAC prompt.

Task Manager
Task Manager may crash when attempting to access the Performance tab.
 * This bug may be encountered on devices that are upgraded to this build. A clean installation of this build will not be affected.