 -- Alexis Mousset <alexis.mousset@normation.com>  Mon, 26 Sep 2016 17:19:00 +0100
  * Version 1.0
  ** Use the new package promises
 -- Alexis Mousset <alexis.mousset@normation.com> Thu Aug  3 16:53:40 2017
  * Version 1.1
  ** Add options for package managers
 -- Nicolas Charles <nicolas.charles@normation.com> Thu Dec  7 17:16:30 2017
  * Version 1.2
  ** Convert to multiversionned technique
 -- Félix Dallidet <felix.dallidet@rudder.io> Mon Mar 1 10:23:30 2021
  * Version 1.3
  ** Add upgrade only option
