Microsoft releases new cumulative update for Windows 11 PCs

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

This security update includes quality improvements. Key changes include:

• Addresses a known issue affecting the Japanese Input Method Editor (IME). When you enter text using a Japanese IME, the text may appear out of order, or the text cursor may move unexpectedly in applications that use multibyte character sets (MBCS). This issue affects Microsoft Japanese IME and third-party Japanese IME.

This update also comes with the following known issues.

After installing Windows 11, some image editing programs may not render colors correctly on some high dynamic range (HDR) displays. This is often observed in white, which can appear as bright yellow or other colors.

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

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

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