Open terminal and type:
defaults write com.apple.dock persistent-others -array-add '{ "tile-data" = { "list-type" = 1; }; "tile-type" = "recents-tile"; }'
Once you’ve completed that command, type “killall Dock” to relaunch your dock with the new stack.
A new icon get added to Dock as “Recent Applications”, and onclick of the icon it display recently opened applications.
