Skip to main content
Barracuda MSP Partner Toolkit

The configuration version for VM <VM name> is out-of-date

Upgrade virtual machine configuration version in

Hyper-V on Windows Server


Error Message Encountered:

The configuration version for VM <VM name> is out-of-date


The Hyper-V plugin implements the built-in Resilient Change Tracking (RCT) technology available in Hyper-V starting with Windows Server 2016.  RCT is used during backups for changed block tracking capabilities of virtual machines disks.

Virtual machine backup operations with RCT require the Hyper-V virtual machine’s configuration version to be 8.0.


The virtual machines configuration version needs to be upgraded in order to be compatible with Windows Server Hyper-V Resilient Change Tracking (RCT)." For details see:

  • Was this article helpful?