For those not knowing PVE:

"Proxmox Virtual Environment is a complete, open-source server management platform for enterprise virtualization. It tightly integrates the KVM hypervisor and Linux Containers (LXC), software-defined storage and networking functionality, on a single platform. With the integrated web-based user interface you can manage VMs and containers, high availability for clusters, or the integrated disaster recovery tools with ease."

-- https://www.proxmox.com/en/proxmox-virtual-environment/overv...

For full release notes see:

https://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_8.1