I just downloaded an update to an application as a zip file, so I extracted the file in the Downloads folder.
I now have the old version of Foobar.app located in the Applications folder and the new version Foobar.app located in the Downloads folder.
I would then like to replace the old version with the new version by dragging the new version from the Downloads folder to the Applications folder via the Dock.
This doesn't work if the app has the same filename, so I have to either first delete the old version using Finder or just move the new app to the Applications folder using Finder.
Edit: This isn't only a problem with Applications/Downloads folder, but any two folders in the Dock. Also it doesn't matter if it is an application, a folder or a file.
Is it possible to make it possible to replace an application using Drag'n'Drop in the Dock?
Here is a recording of it: