# Display the configuration versions supported by your Hyper-V
Get-VMHostSupportedVersion

# Display virtual machine configuration versions
Get-VM | Select-Object Name,Version

# Update the configuration version of the virtual machine
# This action is not reversible
# The machine must be in a Disabled state (stopped)
# If the machine is in a Registered state, the update removes the mise en mémoire state.
Update-VMVersion -VM VM-Test

# Update the configuration version of the virtual machine to a more recent version.
# This action is not reversible
# The machine must be in a stopped state
# If the machine is in a Saved state, the update removes the out-of-memory state
Update-VMVersion -VM VM-Test2 -TargetVersion 9.0

# Create a virtual machine in a previous configuration version
New-VM -Name VM_Test_V8 -Version 8.0