diff --git a/CHANGELOG.md b/CHANGELOG.md
index 750c3a5..7b01414 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 Changelog
 =========
 
+### 1.6.1
+- Magica Cloth 2 support for hair physics.
+    - Magica Cloth and collider navigation tools added.
+
 ### 1.6.0
 - Fixes to root bones and physics components in LOD combiner.
 - Support for Magica Cloth 2 Physics (if present) - Cloth simulation and spring bones.
diff --git a/Editor/ImporterFeaturesWindow.cs b/Editor/ImporterFeaturesWindow.cs
index f0ab49d..742b1bd 100644
--- a/Editor/ImporterFeaturesWindow.cs
+++ b/Editor/ImporterFeaturesWindow.cs
@@ -1,3 +1,21 @@
+/* 
+ * Copyright (C) 2021 Victor Soupday
+ * This file is part of CC_Unity_Tools <https://github.com/soupday/CC_Unity_Tools>
+ * 
+ * CC_Unity_Tools is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * CC_Unity_Tools is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with CC_Unity_Tools.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Editor/PrefabNavigationEditor.cs b/Editor/PrefabNavigationEditor.cs
index fa4bc10..4950b7f 100644
--- a/Editor/PrefabNavigationEditor.cs
+++ b/Editor/PrefabNavigationEditor.cs
@@ -1,3 +1,21 @@
+/* 
+ * Copyright (C) 2021 Victor Soupday
+ * This file is part of CC_Unity_Tools <https://github.com/soupday/CC_Unity_Tools>
+ * 
+ * CC_Unity_Tools is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * CC_Unity_Tools is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with CC_Unity_Tools.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 using System.Collections;
 using System.Collections.Generic;
 using UnityEditor;