Major changes in 3.18.3:
* Check availability of PackageKit for installing extra apps (Cosimo Cechi) 
* Fix overflow in 32 bits systems (Sebastian Bacher)
* Fix renaming popover misplaced in the desktop (Iain Lane)
* Fix blank square in the view after changing view modes or locations (Carlos Soriano)
* Fix crash when clicking preferences (Carlos Soriano)
* Widespread work on removing leaks, that usually causes crashes (Carlos Soriano)
* Operations start visibility improved, showing the popover (Carlos Soriano)
* Fix wrong date calculation (Carlos Soriano)
* Fix another issue with nautilus opening location in the wrong window (Carlos Soriano)
* Fix "move to" action (Carlos Soriano)

Major changes in 3.18.2: