[irshadshalu]

can't speak about the very recent updates, but windows have been consistent and adamant on keeping the backward compatibility. they still use reserved file names for io devices so that 30+ year old printers can still work, and you can still open a 2000s doc file in office 365. (I'm looking at you Apple, who made many of the 32 bit apps I loved useless)

relevant video: https://youtu.be/bC6tngl0PTI (Tom Scott: Why you can't use CON as filename in windows)

[ciupicri]

Actually you can use CON as a filename in Windows, you just have to use the right API. The command:

    type CON > "\\?\C:\CON"

will create a file named CON. https://docs.microsoft.com/en-us/windows/win32/fileio/naming... has some details about this.

[pjmlp]

Even the, now official, merge of UWP with Win32 is planned to take years as they don't want to introduced hard breaks for those that decided to bet on WinRT.