I was studying Windows Presentation Foundation and had a number of links to Microsoft documents about it. Today (9/6/2020) I'm getting a lot of 404 Errors (site not found) when I try to access those same WPF and XAML document sites that were working
before. For example, https://docs.microsoft.com/en-us/dotnet/framework/wpf/
used to work for me, but now brings up a 404 Error page. Another link that no longer works is:
https://docs.microsoft.com/en-us/dotnet/desktop/framework/wpf/controls/menu-overview?view=netdesktop-5.0
Can anyone tell me what is going on with those links, and where I should turn for WPF documentation?