New this build: Particle effects, Family instance variables and a new official Drag & Drop behavior!
There are six new examples of the Particles object in the Examples folder in the install directory. You should definitely check them out since there's nice eye-candy to be seen, and it shows how versatile the Particles object can be - there's everything from fire to fountains! Here's one demo particle effect and you can do interactive ones like this particle thruster.
You may also have noticed in r77 you can't use any instance variables in events for families. Family instance variables solve that problem, allowing you to have variables accessible to all objects in the family. If you ever used Construct Classic, the way family variables works is a little different. In Classic, the family variables were simply the variables in common to all the objects in the family - you did not actually add variables to the family itself. However, it's changed in Construct 2 to an inheritance model: you add variables directly to the family, and all the objects in the family inherit the variables from all the families they're in. This should be easier to work with than the sometimes confusing in-common system. It also makes the Families system more like object-oriented programming languages, with object types being like a derived class from the family base class.
More goodies in the changelog below!