[cprecioso]

You can still get it like that, just right click on any folder that is pinned to the right side of the Dock, you’ll get 4 different display options.

[graypegg]

You made my day! That’s actually really slick in the “list” mode.

[simongray]

Thank you!!

[pantulis]

Also should mention "Folder Peek" by Sindre Sorhus which basically does the same but in the menubar, quite handy and free.