Microsoft releases Windows 11 cumulative update KB5009566

Microsoft today released the KB5009566 (OS Build 22000.434) cumulative update for Windows 11 PCs. The update fixes several security vulnerabilities and a known issue affecting the Japanese Input Method Editor (IME). Find the official changelog below.

• Updates a known issue that affects Japanese Input Method Editors (IME).  Text you enter might appear out of order or the text cursor might move unexpectedly in apps that use the multibyte character set (MBCS).

• Updates security for your Windows operating system.

Known issues in this update

After installing Windows 11, some image editing programs might not render colors correctly on certain high dynamic range (HDR) displays. This is frequently observed with white colors, which could display in bright yellow or other colors.

This issue occurs when certain color-rendering Win32 APIs return unexpected information or errors under specific conditions. Not all color profile management programs are affected, and color profile options available in the Windows 11 Settings page, including Microsoft Color Control Panel, are expected to function correctly.

Microsoft will provide a solution for this known issue in late January.

Windows 11 Direct Download Links: 64-bit.