@boilingsteam though it has been a while since I last checked, but I thought that MS is still allowing upgrades for free, no?
The problem is the hardware requirements of Win 10/11, I believe.
@tpoliaw Yes, you can type "eol all" to see the full list of 280 (and counting!) products. Or see them in the side menu of the amazing https://endoflife.date/ -- norwegianblue uses its API.