KB5027397: This update changes the units for DDR speed from MHz to MT/s.

Improvements

• New! This update improves the Virtual Filtering Platform (VFP) within Windows nodes. Now, VFP has more support for packet drop collection. This will make it easier to troubleshoot issues.
• This update addresses an issue that affects Group Policy. It fails to detect when a network’s speed is slow. Instead, it assumes that a fast link is present.
• This update addresses an issue that affects Storage Spaces Direct (S2D) and Remote Direct Memory Access (RDMA). When you use them with SMBdirect in your networks, the networks fail. You also lose the ability to manage clusters.
• This update addresses an issue that affects GPUs. They do not enter the idle state that stops them from consuming power.
• This update adds the registry key HKLM\\Software\\Microsoft\\Windows\\DWM ForceDisableModeChangeAnimation (REG_DWORD). When you set its value to 1 (or a non-zero number), it turns off the display mode change animation. If the value is 0 or the key does not exist, the animation is set to on.
• This update brings Country and Operator Settings Asset (COSA) profiles up to date for certain mobile operators.
• This update addresses an issue that affects Azure Virtual Desktop sessions. A deadlock stops you from signing in to them.
• A firewall profile drops from domain to public. This occurs when multiple interfaces exist, and you add or remove an interface. This update addresses this issue.
• An issue occurs in the Windows Filtering Platform (WFP) driver. This issue leads to high system CPU usage. It also reduces throughput under a heavy load. This update boosts network packet processing in WFP. This helps to stop performance from degrading. This update also adds batch processing to reduce CPU load.
• The Input Method Editor (IME) candidate list fails to show or shows in the wrong position. This update addresses this issue.