code: def getEngineChangelist(self):
  		
  		
  		# Newer versions of the engine use the key "CompatibleChangelist", older ones use "Changelist"
  		version = self._getEngineVersionDetails()
  		if 'CompatibleChangelist' in version:
  			return int(version['CompatibleChangelist'])
  		else:
  			return int(version['Changelist'])
docs: Returns the compatible Perforce changelist identifier for the latest installed version of UE4