To align the Hyper-V with System Center VMM Microsoft has changed the Hyper-V manager regarding the snapshots to Checkpoints. I personally had preferred that they changed the naming in VMM to snapshots instead, but that is my opinion and maybe that is because of my background in VMware environments 😛

Although the change has been implemented in the GUI, the PowerShell module has not been updated to reflect this as you can see in my next screendump:

The cmdlet to take a checkpoint is as it has been in the Hyper-V Powershell module in 2012, Checkpoint-VM.