Microsoft has released its December 2024 security update, known as the "B release," for Windows Server 20H2 and supported versions of Windows 10 (20H2, 21H2, and 22H2). The updates are cataloged under KB5048652, raising the builds to 19044.5247 and 19045.5247. There are no known issues with this update. Older versions of Windows 10, including 20H2, 1909, and non-LTSC editions of 21H2, have also received updates, with all older versions reaching the end of servicing.