For details, please see included release notes as well as solution SOL156184 in our Knowledge Base.
The following is a list of issues resolved in this patch:
VFOG-9388 - The BIOS GUID (Global Unique Identifier) appears as a system ID of a Hyper-V virtual machine host. The Hyper-V agent uses this ID to collect metrics about virtual machines. This caused the performance metrics of multiple virtual machines to merge and produce identical results in the Resource Utilizations view.