I'm converting a SharePoint 2013 solution to 2016. Back when 2013 was introduced I recall all the _layouts/ -> _layouts/15 issues, and immediately looked out for this.
In my SharePoint 2016 solution there is an icon image on this location:
C:\Program Files\Common Files\microsoft shared\Web Server Extensions\16\TEMPLATE\IMAGES\FGIMG.PNG
I would expect the mapped url to be:
However that is NOT the case. The image is found here:
This confuses me.
Why is this so?
I can't seem to find any official documentation about this...
(It is a clean 2016 RTM install and that file is a part of SharePoint itself)