v0.9.4

#21715, The default MaterialPageRoute transition is now defined by the Theme. Added (optional) support for Android P style page transitions. The MaterialPageRoute support for “hosting” another route to reuse its buildTransitions() method was removed because PageTransitionsBuilders, including CupertinoPageTransitionBuilder, are standalone objects.

v0.9.3

#22108 changed the output of flutter doctor slightly, which may affect automated scripts that depended on the exact output.

v0.9.2

#21540 added a transform() method to Animatable. It is implemented by Tween (the main subclass of Animatable) but classes that subclass Animatable directly will need to implement it. Typically the existing evaluate() method can be changed to implement transform() instead, using the value given by the argument to transform() rather than the current value of the animation provided to evaluate(). evaluate() now has a default implementation that defers to transform().