There’s an updated-for-Windows 11 (April 2023) Desktop Operating Systems Licensing Guide. It’s a useful document covering the different Windows editions, device and user licensing options, as well as downgrade rights and Volume Licensing Activation.
Find this updated guide here: https://bit.ly/3B8xvZb.
There’s an updated (March 2017) Downgrade Rights Volume Licensing Brief from Microsoft. The main update is for Windows Server 2016 with useful tables showing downgrade and down edition rights with the all important reminder of which use rights govern a deployment.
Find this updated Volume Licensing Brief in our Licensing Guides emporium – in the Desktop or Core Infrastructure section: http://bit.ly/MSLicensingGuides.