1.3.1.0

• Various internal performance improvements. #257, #258
• Fix a space leak in dynamic event switching. #256
• Reduce memory usage of stepper/accumB. #260
• Prevent a deadlock if the network crashes when evaluating a Behavior or Event. #262

1.3.0.0

• Added Semigroup and Monoid instances to Moment and MomentIO. #223
• Add @> operator. #229
• switchE now takes an initial event. This is breaking change. The previous behavior can be restored by using switchE never. #165
• Triggering an AddHandler no longer allocates, leading to a minor performance improvement. #237
• A new once combinator has been added that filters an Event so it only fires once. #239
• MonadMoment instances have been added for all possibly monad transformers (from the transformers library). #248
• Some internal refactoring to reduce allocations and improve performance. #238
• The Reactive.Banana.Prim hierarchy has been changed to better reflect the abstraction hierarchy. #241