You can upgrade to Windows 11 or Windows 10 from Windows 7 or Windows 8.1 even now for free! Microsoft offers you a simple method to upgrade from the previous version ...
Those on older Windows 10 versions will be offered newer Windows ... does recommend getting the latest servicing stack update (SSU). You can find such information on this advisory (ADV990001).
In Windows 11 it appears as follows: In Windows 10 it appears as follows: You can easily look for your Windows Update History to get information about all those updates present on that list.