diff --git a/doc/classes/NavigationAgent2D.xml b/doc/classes/NavigationAgent2D.xml
index 0258de9516a..770a5dc5b06 100644
--- a/doc/classes/NavigationAgent2D.xml
+++ b/doc/classes/NavigationAgent2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationAgent2D" inherits="Node" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationAgent2D" inherits="Node" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		2D Agent used in navigation for collision avoidance.
 	</brief_description>
diff --git a/doc/classes/NavigationAgent3D.xml b/doc/classes/NavigationAgent3D.xml
index 038a7587584..d9a1235bddf 100644
--- a/doc/classes/NavigationAgent3D.xml
+++ b/doc/classes/NavigationAgent3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationAgent3D" inherits="Node" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationAgent3D" inherits="Node" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		3D Agent used in navigation for collision avoidance.
 	</brief_description>
diff --git a/doc/classes/NavigationLink2D.xml b/doc/classes/NavigationLink2D.xml
index d820e1327b8..9d756943602 100644
--- a/doc/classes/NavigationLink2D.xml
+++ b/doc/classes/NavigationLink2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationLink2D" inherits="Node2D" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationLink2D" inherits="Node2D" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		Creates a link between two locations that [NavigationServer2D] can route agents through.
 	</brief_description>
diff --git a/doc/classes/NavigationLink3D.xml b/doc/classes/NavigationLink3D.xml
index 51b00744592..730c43c5a86 100644
--- a/doc/classes/NavigationLink3D.xml
+++ b/doc/classes/NavigationLink3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationLink3D" inherits="Node3D" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationLink3D" inherits="Node3D" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		Creates a link between two locations that [NavigationServer3D] can route agents through.
 	</brief_description>
diff --git a/doc/classes/NavigationMesh.xml b/doc/classes/NavigationMesh.xml
index 8c4626d0704..19b3e7d90e1 100644
--- a/doc/classes/NavigationMesh.xml
+++ b/doc/classes/NavigationMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationMesh" inherits="Resource" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationMesh" inherits="Resource" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		A mesh to approximate the walkable areas and obstacles.
 	</brief_description>
diff --git a/doc/classes/NavigationMeshGenerator.xml b/doc/classes/NavigationMeshGenerator.xml
index 219bfb8140b..15d149a2293 100644
--- a/doc/classes/NavigationMeshGenerator.xml
+++ b/doc/classes/NavigationMeshGenerator.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationMeshGenerator" inherits="Object" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationMeshGenerator" inherits="Object" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		Helper class for creating and clearing navigation meshes.
 	</brief_description>
diff --git a/doc/classes/NavigationObstacle2D.xml b/doc/classes/NavigationObstacle2D.xml
index 68d9691ccfb..ce0f05ad28e 100644
--- a/doc/classes/NavigationObstacle2D.xml
+++ b/doc/classes/NavigationObstacle2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationObstacle2D" inherits="Node" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationObstacle2D" inherits="Node" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		2D Obstacle used in navigation for collision avoidance.
 	</brief_description>
diff --git a/doc/classes/NavigationObstacle3D.xml b/doc/classes/NavigationObstacle3D.xml
index 90eb55887f1..78bbb788d9d 100644
--- a/doc/classes/NavigationObstacle3D.xml
+++ b/doc/classes/NavigationObstacle3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationObstacle3D" inherits="Node" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationObstacle3D" inherits="Node" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		3D Obstacle used in navigation for collision avoidance.
 	</brief_description>
diff --git a/doc/classes/NavigationPathQueryParameters2D.xml b/doc/classes/NavigationPathQueryParameters2D.xml
index b5231a95c26..dff58fc1bd6 100644
--- a/doc/classes/NavigationPathQueryParameters2D.xml
+++ b/doc/classes/NavigationPathQueryParameters2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationPathQueryParameters2D" inherits="RefCounted" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationPathQueryParameters2D" inherits="RefCounted" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		Parameters to be sent to a 2D navigation path query.
 	</brief_description>
diff --git a/doc/classes/NavigationPathQueryParameters3D.xml b/doc/classes/NavigationPathQueryParameters3D.xml
index 20d9ff9c3fe..46a35b1071f 100644
--- a/doc/classes/NavigationPathQueryParameters3D.xml
+++ b/doc/classes/NavigationPathQueryParameters3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationPathQueryParameters3D" inherits="RefCounted" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationPathQueryParameters3D" inherits="RefCounted" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		Parameters to be sent to a 3D navigation path query.
 	</brief_description>
diff --git a/doc/classes/NavigationPathQueryResult2D.xml b/doc/classes/NavigationPathQueryResult2D.xml
index 95b90e93837..77b19b07b69 100644
--- a/doc/classes/NavigationPathQueryResult2D.xml
+++ b/doc/classes/NavigationPathQueryResult2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationPathQueryResult2D" inherits="RefCounted" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationPathQueryResult2D" inherits="RefCounted" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		Result from a [NavigationPathQueryParameters2D] navigation path query.
 	</brief_description>
diff --git a/doc/classes/NavigationPathQueryResult3D.xml b/doc/classes/NavigationPathQueryResult3D.xml
index b4ca8288dbc..6c553bf36bf 100644
--- a/doc/classes/NavigationPathQueryResult3D.xml
+++ b/doc/classes/NavigationPathQueryResult3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationPathQueryResult3D" inherits="RefCounted" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationPathQueryResult3D" inherits="RefCounted" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		Result from a [NavigationPathQueryParameters3D] navigation path query.
 	</brief_description>
diff --git a/doc/classes/NavigationPolygon.xml b/doc/classes/NavigationPolygon.xml
index cc1d2c03d82..b30dd2703a5 100644
--- a/doc/classes/NavigationPolygon.xml
+++ b/doc/classes/NavigationPolygon.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationPolygon" inherits="Resource" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationPolygon" inherits="Resource" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		A node that has methods to draw outlines or use indices of vertices to create navigation polygons.
 	</brief_description>
diff --git a/doc/classes/NavigationRegion2D.xml b/doc/classes/NavigationRegion2D.xml
index 3d9bbcdba29..8b8793b3b4f 100644
--- a/doc/classes/NavigationRegion2D.xml
+++ b/doc/classes/NavigationRegion2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationRegion2D" inherits="Node2D" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationRegion2D" inherits="Node2D" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		A region of the 2D navigation map.
 	</brief_description>
diff --git a/doc/classes/NavigationRegion3D.xml b/doc/classes/NavigationRegion3D.xml
index e98164d5f90..10662db8691 100644
--- a/doc/classes/NavigationRegion3D.xml
+++ b/doc/classes/NavigationRegion3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationRegion3D" inherits="Node3D" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationRegion3D" inherits="Node3D" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		A region of the navigation map.
 	</brief_description>
diff --git a/doc/classes/NavigationServer2D.xml b/doc/classes/NavigationServer2D.xml
index 510aac7cb9c..32e48cde546 100644
--- a/doc/classes/NavigationServer2D.xml
+++ b/doc/classes/NavigationServer2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationServer2D" inherits="Object" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationServer2D" inherits="Object" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		Server interface for low-level 2D navigation access
 	</brief_description>
diff --git a/doc/classes/NavigationServer3D.xml b/doc/classes/NavigationServer3D.xml
index 1ed9443d6ef..c156dfac163 100644
--- a/doc/classes/NavigationServer3D.xml
+++ b/doc/classes/NavigationServer3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationServer3D" inherits="Object" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+<class name="NavigationServer3D" inherits="Object" is_experimental="true" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
 	<brief_description>
 		Server interface for low-level 3D navigation access
 	</brief_description>