Elite: Dangerous players eager to try out the Guardians content expansion will be happy to hear that v2.2 will be entering beta testing beginning on September 20th. Players will beta access can take part in fighter-ship battles, head out on passenger missions in the Beluga liner, enjoy better station interiors, use an improved route planner, etc.
The best place to grab the details about each of the many features and additions coming in v2.2 Guardians is the Elite: Dangerous site and by checking out some of the awesomeness in action in the videos below as well as several others at the link above.