diff --git a/Entitas.Migration/Program.cs b/Entitas.Migration/Program.cs
index 106267cea..a1a20b0b1 100644
--- a/Entitas.Migration/Program.cs
+++ b/Entitas.Migration/Program.cs
@@ -6,11 +6,11 @@ class MainClass {
         public static void Main(string[] args) {
 
             var allMigrations = new IMigration[] {
-                new M0300(),
-                new M0260(),
-                new M0220(),
+                new M0180(),
                 new M0190(),
-                new M0180()
+                new M0220(),
+                new M0260(),
+                new M0300()
             };
 
             if (args == null) {
diff --git a/Entitas/Entitas/entitas_version b/Entitas/Entitas/entitas_version
index 25939d35c..c25c8e5b7 100644
--- a/Entitas/Entitas/entitas_version
+++ b/Entitas/Entitas/entitas_version
@@ -1 +1 @@
-0.29.1
+0.30.0
diff --git a/EntitasUpgradeGuide.md b/EntitasUpgradeGuide.md
index 2ea3dfcf8..661adfcc6 100644
--- a/EntitasUpgradeGuide.md
+++ b/EntitasUpgradeGuide.md
@@ -1,15 +1,59 @@
-# Entitas 0.28.0 upgrade guide
+# General information
+Entitas provides an easy way to make upgrading to new versions a breeze.
+Either use the command line tool `MigrationAssistant.exe` or the Migration menu
+item in Unity. After that generate again.
+
+Example
+```
+$ mono MigrationAssistant.exe
+usage:
+[-l]             - print all available versions
+[version] [path] - apply migration of version [version] to source files located at [path]
+
+$ mono MigrationAssistant.exe -l
+========================================
+0.18.0
+  - Migrates IReactiveSystem GetXyz methods to getters
+  - Use on folder, where all systems are located
+========================================
+0.19.0
+  - Migrates IReactiveSystem.Execute to accept List<Entity>
+  - Use on folder, where all systems are located
+========================================
+0.22.0
+  - Migrates IReactiveSystem to combine trigger and eventTypes to TriggerOnEvent
+  - Use on folder, where all systems are located
+========================================
+0.26.0
+  - Deactivates code to prevent compile erros
+  - Use on folder, where generated files are located
+========================================
+etc...
+
+
+// Example from Math-One example project
+$ mono MigrationAssistant.exe 0.26.0 /Path/To/Project/Generated/
+```
+
+
+# Entitas 0.30.0 upgrade guide
+Some code generators got renamed. Apply Migration 0.30.0
+
 
+# Entitas 0.29.0
+Marked old PoolMetaData constructor obsolete. If you encounter compile errors
+please apply Migration 0.26.0, open C# project and generate again.
+
+
+# Entitas 0.28.0 upgrade guide
 If you're using Entitas with Unity, please open the Entitas preferences and make
 sure that all your desired code generators are activated.
-Due to some code generator renamings the ComponentIndicesGeneratoris inactive.
+Due to some code generator renamings the ComponentIndicesGenerators inactive.
 
 The SystemsGenerator has been removed. Please use `pool.CreateSystem<MySystem>()` instead.
 
 
-
 # Entitas 0.27.0 upgrade guide
-
 If you're using Entitas with Unity, please open the Entitas preferences and make
 sure that all your desired code generators are activated.
 Due to some code generator renamings the ComponentLookupGenerator and
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index e12327883..1cf790894 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,3 +1,39 @@
+# 0.30.0
+
+##### Breaking changes
+Please follow the [Entitas upgrade guide](https://github.com/sschmid/Entitas-CSharp/blob/master/EntitasUpgradeGuide.md)
+
+##### Entitas
+- Added IGroupObserverSystem which allows ReactiveSystems to observe multiple pools
+- Added pools.CreateGroupObserver() to simplify creating a GroupObserver for multiple pools
+
+##### Entitas.CodeGenerator
+- TypeReflectionProvider ignores abstract IComponents (#88)
+- Renamed ComponentsGenerator to ComponentExtensionsGenerator
+- Renamed PoolAttributeGenerator to PoolAttributesGenerator
+
+##### Entitas.Unity
+- Moved Assets/Entitas.Unity to Assets/Entitas/Unity
+- Simplified folder structure in Entitas-Unity.zip
+
+##### Entitas.Unity.CodeGenerator
+- Ignoring obsolete code generators
+- Generate button changes size depending on generators list height
+
+##### Entitas.Unity.VisualDebugging
+- Added Feature class which inherits from Systems or DebugSystems for you, so you don't have to care anymore
+- Fixed MissingReferenceException occurring occasionally when stopping game (#71)
+- Added support for editing entities in EditorMode (non-playing mode)
+- Fixed bug when components are added on entity creation (#87)
+- Added clear buttons to search textfields
+- Improved DateTimeTypeDrawer
+- Added new hierarchy icons for pool and systems
+
+##### Entitas.Migration
+- Added M0300
+- Moving Entitas.Migration into Entitas/Migration/Editor when creating Entitas-Unity.zip
+
+
 # 0.29.1
 
 ##### Entitas.CodeGenerator
diff --git a/bin/Entitas-CSharp.zip b/bin/Entitas-CSharp.zip
index 094e40fe4..aadaccc88 100644
Binary files a/bin/Entitas-CSharp.zip and b/bin/Entitas-CSharp.zip differ
diff --git a/bin/Entitas-Unity.zip b/bin/Entitas-Unity.zip
index 2d6c966be..adb85e9e1 100644
Binary files a/bin/Entitas-Unity.zip and b/bin/Entitas-Unity.zip differ
diff --git a/tree.txt b/tree.txt
index 834365fb8..46b759397 100644
--- a/tree.txt
+++ b/tree.txt
@@ -16,22 +16,23 @@
 └── Entitas.Unity
     └── Assets
         ├── Editor
-        └── Entitas.Unity
-            ├── CodeGenerator
-            │   └── Editor
-            ├── Editor
-            ├── Migration
-            │   └── Editor
-            └── VisualDebugging
-                ├── DebugSystems
+        └── Entitas
+            └── Unity
+                ├── CodeGenerator
                 │   └── Editor
                 ├── Editor
-                ├── Entity
+                ├── Migration
                 │   └── Editor
-                │       ├── DefaultInstanceCreator
-                │       └── TypeDrawer
-                └── PoolObserver
-                    └── Editor
+                └── VisualDebugging
+                    ├── DebugSystems
+                    │   └── Editor
+                    ├── Editor
+                    ├── Entity
+                    │   └── Editor
+                    │       ├── DefaultInstanceCreator
+                    │       └── TypeDrawer
+                    └── PoolObserver
+                        └── Editor
 .
 ├── Entitas
 │   └── Entitas
@@ -42,9 +43,9 @@
 │       │   │   ├── PoolAttribute.cs
 │       │   │   └── SingleEntityAttribute.cs
 │       │   ├── Generators
+│       │   │   ├── ComponentExtensionsGenerator.cs
 │       │   │   ├── ComponentIndicesGenerator.cs
-│       │   │   ├── ComponentsGenerator.cs
-│       │   │   ├── PoolAttributeGenerator.cs
+│       │   │   ├── PoolAttributesGenerator.cs
 │       │   │   └── PoolsGenerator.cs
 │       │   ├── Interfaces
 │       │   │   ├── ICodeGenerator.cs
@@ -96,6 +97,7 @@
 │   │   ├── M0190.cs
 │   │   ├── M0220.cs
 │   │   ├── M0260.cs
+│   │   ├── M0300.cs
 │   │   ├── MigrationFile.cs
 │   │   └── MigrationUtils.cs
 │   └── Program.cs
@@ -103,75 +105,80 @@
 │   └── Assets
 │       ├── Editor
 │       │   └── Commands.cs
-│       └── Entitas.Unity
-│           ├── CodeGenerator
-│           │   └── Editor
-│           │       ├── CodeGeneratorConfig.cs
-│           │       ├── CodeGeneratorPreferencesDrawer.cs
-│           │       └── UnityCodeGenerator.cs
-│           ├── Editor
-│           │   ├── Entitas-Header.png
-│           │   ├── EntitasCheckForUpdates.cs
-│           │   ├── EntitasEditorLayout.cs
-│           │   ├── EntitasFeedback.cs
-│           │   ├── EntitasPreferences.cs
-│           │   ├── EntitasPreferencesConfig.cs
-│           │   ├── EntitasPreferencesDrawer.cs
-│           │   ├── EntitasPreferencesWindow.cs
-│           │   └── ScriptingDefineSymbols.cs
-│           ├── Migration
-│           │   └── Editor
-│           │       ├── Entitas-Migration-Header.png
-│           │       └── EntitasMigrationWindow.cs
-│           ├── VisualDebugging
-│           │   ├── DebugSystems
-│           │   │   ├── Editor
-│           │   │   │   ├── DebugSystemsInspector.cs
-│           │   │   │   └── SystemsMonitor.cs
-│           │   │   ├── DebugSystems.cs
-│           │   │   ├── DebugSystemsBehaviour.cs
-│           │   │   └── SystemInfo.cs
-│           │   ├── Editor
-│           │   │   ├── EntitasHierarchyIcon.cs
-│           │   │   ├── EntitasHierarchyIcon.png
-│           │   │   ├── EntitasStats.cs
-│           │   │   ├── VisualDebuggingConfig.cs
-│           │   │   └── VisualDebuggingPreferencesDrawer.cs
-│           │   ├── Entity
-│           │   │   ├── Editor
-│           │   │   │   ├── DefaultInstanceCreator
-│           │   │   │   │   ├── DefaultArrayCreator.cs
-│           │   │   │   │   ├── DefaultStringCreator.cs
-│           │   │   │   │   └── IDefaultInstanceCreator.cs
-│           │   │   │   ├── TypeDrawer
-│           │   │   │   │   ├── AnimationCurveTypeDrawer.cs
-│           │   │   │   │   ├── ArrayTypeDrawer.cs
-│           │   │   │   │   ├── BoolTypeDrawer.cs
-│           │   │   │   │   ├── BoundsTypeDrawer.cs
-│           │   │   │   │   ├── ColorTypeDrawer.cs
-│           │   │   │   │   ├── DateTimeTypeDrawer.cs
-│           │   │   │   │   ├── DictionaryTypeDrawer.cs
-│           │   │   │   │   ├── EnumTypeDrawer.cs
-│           │   │   │   │   ├── FloatTypeDrawer.cs
-│           │   │   │   │   ├── HashSetTypeDrawer.cs
-│           │   │   │   │   ├── ITypeDrawer.cs
-│           │   │   │   │   ├── IntTypeDrawer.cs
-│           │   │   │   │   ├── ListTypeDrawer.cs
-│           │   │   │   │   ├── RectTypeDrawer.cs
-│           │   │   │   │   ├── StringTypeDrawer.cs
-│           │   │   │   │   ├── UnityObjectTypeDrawer.cs
-│           │   │   │   │   ├── Vector2TypeDrawer.cs
-│           │   │   │   │   ├── Vector3TypeDrawer.cs
-│           │   │   │   │   └── Vector4TypeDrawer.cs
-│           │   │   │   ├── EntityDrawer.cs
-│           │   │   │   └── EntityInspector.cs
-│           │   │   └── EntityBehaviour.cs
-│           │   └── PoolObserver
-│           │       ├── Editor
-│           │       │   └── PoolObserverInspector.cs
-│           │       ├── PoolObserver.cs
-│           │       └── PoolObserverBehaviour.cs
-│           └── Properties.cs
+│       └── Entitas
+│           └── Unity
+│               ├── CodeGenerator
+│               │   └── Editor
+│               │       ├── CodeGeneratorConfig.cs
+│               │       ├── CodeGeneratorPreferencesDrawer.cs
+│               │       └── UnityCodeGenerator.cs
+│               ├── Editor
+│               │   ├── Entitas-Header.png
+│               │   ├── EntitasCheckForUpdates.cs
+│               │   ├── EntitasEditorLayout.cs
+│               │   ├── EntitasFeedback.cs
+│               │   ├── EntitasPreferences.cs
+│               │   ├── EntitasPreferencesConfig.cs
+│               │   ├── EntitasPreferencesDrawer.cs
+│               │   ├── EntitasPreferencesWindow.cs
+│               │   └── ScriptingDefineSymbols.cs
+│               ├── Migration
+│               │   └── Editor
+│               │       ├── Entitas-Migration-Header.png
+│               │       └── EntitasMigrationWindow.cs
+│               ├── VisualDebugging
+│               │   ├── DebugSystems
+│               │   │   ├── Editor
+│               │   │   │   ├── DebugSystemsInspector.cs
+│               │   │   │   └── SystemsMonitor.cs
+│               │   │   ├── DebugSystems.cs
+│               │   │   ├── DebugSystemsBehaviour.cs
+│               │   │   ├── Feature.cs
+│               │   │   └── SystemInfo.cs
+│               │   ├── Editor
+│               │   │   ├── EntitasEntityHierarchyIcon.png
+│               │   │   ├── EntitasHierarchyIcon.cs
+│               │   │   ├── EntitasPoolHierarchyIcon.png
+│               │   │   ├── EntitasStats.cs
+│               │   │   ├── EntitasSystemsHierarchyIcon.png
+│               │   │   ├── VisualDebuggingConfig.cs
+│               │   │   └── VisualDebuggingPreferencesDrawer.cs
+│               │   ├── Entity
+│               │   │   ├── Editor
+│               │   │   │   ├── DefaultInstanceCreator
+│               │   │   │   │   ├── DefaultArrayCreator.cs
+│               │   │   │   │   ├── DefaultStringCreator.cs
+│               │   │   │   │   └── IDefaultInstanceCreator.cs
+│               │   │   │   ├── TypeDrawer
+│               │   │   │   │   ├── AnimationCurveTypeDrawer.cs
+│               │   │   │   │   ├── ArrayTypeDrawer.cs
+│               │   │   │   │   ├── BoolTypeDrawer.cs
+│               │   │   │   │   ├── BoundsTypeDrawer.cs
+│               │   │   │   │   ├── ColorTypeDrawer.cs
+│               │   │   │   │   ├── DateTimeTypeDrawer.cs
+│               │   │   │   │   ├── DictionaryTypeDrawer.cs
+│               │   │   │   │   ├── EnumTypeDrawer.cs
+│               │   │   │   │   ├── FloatTypeDrawer.cs
+│               │   │   │   │   ├── HashSetTypeDrawer.cs
+│               │   │   │   │   ├── ITypeDrawer.cs
+│               │   │   │   │   ├── IntTypeDrawer.cs
+│               │   │   │   │   ├── ListTypeDrawer.cs
+│               │   │   │   │   ├── RectTypeDrawer.cs
+│               │   │   │   │   ├── StringTypeDrawer.cs
+│               │   │   │   │   ├── UnityObjectTypeDrawer.cs
+│               │   │   │   │   ├── Vector2TypeDrawer.cs
+│               │   │   │   │   ├── Vector3TypeDrawer.cs
+│               │   │   │   │   └── Vector4TypeDrawer.cs
+│               │   │   │   ├── EntityDrawer.cs
+│               │   │   │   └── EntityInspector.cs
+│               │   │   └── EntityBehaviour.cs
+│               │   ├── PoolObserver
+│               │   │   ├── Editor
+│               │   │   │   └── PoolObserverInspector.cs
+│               │   │   ├── PoolObserver.cs
+│               │   │   └── PoolObserverBehaviour.cs
+│               │   └── GameObjectDestroyExtension.cs
+│               └── Properties.cs
 ├── EntitasUpgradeGuide.md
 ├── LICENSE.txt
 ├── README.md