I don't know if it has ever showed which version Direct X it is using. 5.3.5 and 5.3.6 are supposed to be built to work with DX12, but I haven't noticed if it was supposed to have any indicators, other than in OSD at most. I haven't even looked at that part either.


On the bottom left, look at the osd settings and make sure that it is set to display everything. Showing a screen shot of the display or the settings will help try to figure out what and where you are looking for the version to display.

Keep in mind, not many things run on dx12 right now. If it is displaying dc11, its probably because whatever is being monitored isn't dx12. With the minor detail you give, you leave a lot to question about where you are trying to find the display of versions, so I am sorry this post isn't any more helpful.