If you have VMs created with an earlier version of Hyper-V, some features that are introduced and available on a newer Hyper-V host operating system (OS) might not work with those VMs. it's important to understand which OS versions support which VM configuration versions.
The following table displays the VM configuration versions that are supported on hosts running various versions of the Windows OS.
| Feature | Minimum configuration version |
|---|---|
| Hot Add/Remove Memory | 6.2 |
| Production Checkpoints | 6.2 |
| PowerShell Direct | 6.2 |
| Virtual Machine Grouping | 6.2 |
| Secure Boot for Linux VMs | 6.2 |
| Virtual Trusted Platform Module (vTPM) | 7.0 |
| Virtual machine multi queues (VMMQ) | 7.1 |
| XSAVE support | 8.0 |
| Key storage drive | 8.0 |
| Guest virtualization-based security support (VBS) | 8.0 |
| Nested virtualization | 8.0 |
| Virtual processor count | 8.0 |
| Large memory VMs | 8.0 |
| Increase the default maximum virtual devices to 64 per device | 8.3 |
| Allow additional processor features for Perfmon | 9.0 |
| Automatically enable simultaneous multi-threading (SMT) configuration, and enhance security for Hyper-V hosts using the Core Scheduler | 9.0 |
| Hibernation support | 9.0 |
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