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+++ b/README.md
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 ![DefaultEcs](https://github.com/Doraku/DefaultEcs/raw/master/image/DefaultEcsLogo.png)
 DefaultEcs is an [Entity Component System](https://en.wikipedia.org/wiki/Entity_component_system) framework which aims to be accessible with little constraints while retaining as much performance as possible for game development.
 
-[![NuGet](https://img.shields.io/badge/nuget-v0.10.1-brightgreen.svg)](https://www.nuget.org/packages/DefaultEcs)
+[![NuGet](https://img.shields.io/badge/nuget-v0.11.0-brightgreen.svg)](https://www.nuget.org/packages/DefaultEcs)
 
 - [Requirement](#Requirement)
 - [Release note](./documentation/RELEASENOTE.md 'Release note')
diff --git a/documentation/RELEASENOTE.md b/documentation/RELEASENOTE.md
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+## DefaultEcs 0.11.0
+updated System.Memory reference
+enhanced debugging experience on World, Entity and EntitySet
+added MaxCapacity, Capacity and Size properties on EntityCommandRecorder
+added EntityAdded and EntityRemoved events on EntitySet
+added EntityAdded and EntityRemoved events on AEntitySystem
+added EntityDisposed event on World
+added WhenAdded, WhenChanged and WhenRemoved filter on EntitySetBuilder to create reactive EntitySet
+added WhenAddedAttribute, WhenChangedAttribute and WhenRemovedAttribute for automatique AEntitySystem EntitySet creation from a World
+added Complete method on EntitySet to clear its content if created with a reactive filter
+made T of ISystem contravariant
+
+breaking changes
+removed IEntitySetObserver and implementation, use EntityAdded and EntityRemoved events on EntitySet instead
+
+[nuget package](https://www.nuget.org/packages/DefaultEcs/0.11.0)
+
 ## DefaultEcs 0.10.1
 fixed multiple subscriptions on IPublisherExtension.Subscribe when a virtual method is decorated and overriden in a derived type