Aether Gate Disruption
(this update contains spoilers for the Raiders)
For v2.2, when a fleet passes through an Aether Gate in either direction, the gate is disrupted for a number of seconds equal to the tonnage of military ships in the fleet plus 10% of the tonnage of commercial ships in the fleet. While the gate is disrupted, no ships may transit.
Currently, Raiders who have decided to flee a system will head for the gate, unless that option is too dangerous. In v2.2, if they would reach the gate before it was available, they will take other action instead, such as simply running away from hostile ships in an appropriate direction.
This change is to prevent Raiders quickly popping in and out of gates, but also to add some more variability to Raider behaviour.