2.0.0 -> 3.0.0

• Some extension methods around groups have been removed

• Reactive Systems moved to plugin

• Views moved to plugin

• Computeds moved to plugin

1.0.0 -> 2.0.0

• Lifecycle changes in application

• Dependency injection contract changes

0.. -> 1.0.0

Groups & Collections

• IGroupAccessor has become IObservableGroup

• IGroupAccessorFilter, ICacheableGroupAccessorFilter, IGroupWatcher has become IComputedGroup

• IPool has become IEntityCollection

• IPool.Entities has been removed, IEntityCollection is now IEnumerable<IEntity>

• IPoolManager has become IEntityCollectionManager

• IGroup.TargettedComponents has become IGroup.RequiredComponents

• CRUD operations on IPool/Manager no longer raise system wide events, they are now local IObservable events

• CRUD events are now batched, i.e ComponentAddedEvent has become ComponentsAddedEvent

Systems

• All system Execute methods have been renamed to Process

• ITeardownSystem is now triggered JUST BEFORE an entity has required components removed

• All systems (other than IManualSystem) have been moved to a separate EcsRx.System project

Entities

• IEntity.Id is no longer a Guid and is now an int

• IEntity.AddComponent<T> has been removed, but kept as an extension method on IEntity

• Most interactions at entity level are batched, i.e AddComponent<T>() is now AddComponents(params IComponent[] components)