This morning Microsoft is pushing a new OS preview for Insider members of the Dev Channel, Build 22543.The main changes of the new version are as follows: 1. The media space style of the login page of the lock screen is more consistent with the system and the UI after login.2. Adjust the size of the window after the application split screen quickly, and the adjacent applications will have a blurred background display;3. When you mute the microphone with WIN + ALT + K, a pop-up prompt will appear on the desktop;4. Input methods with semi-transparent backgrounds are now available to all testers;5. The animation progress bar on the startup screen matches the style of the progress bar in the system;6. On the disk page of Settings, the property information is more intuitive.In addition, the version also added a special optimization of the voice (speaker) function for accessible people, fixed a series of bugs related to the taskbar, start menu, resource manager, Chinese input method, and improved system stability.It is worth mentioning that Microsoft has already announced that it will push the first major update of Win11 for the Release Preview channel in February, including the new taskbar, one-click mute function, running Android APK function, etc.