diff --git a/doc/classes/PoolByteArray.xml b/doc/classes/PoolByteArray.xml
index 8c364390bd2..c3c2d7a794f 100644
--- a/doc/classes/PoolByteArray.xml
+++ b/doc/classes/PoolByteArray.xml
@@ -4,7 +4,7 @@
 		Raw byte array.
 	</brief_description>
 	<description>
-		Raw byte array. Contains bytes. Optimized for memory usage, can't fragment the memory.
+		Raw byte array. Contains bytes. Optimized for memory usage, can't fragment the memory. Note that this type is passed by value and not by reference.
 	</description>
 	<tutorials>
 	</tutorials>
diff --git a/doc/classes/PoolColorArray.xml b/doc/classes/PoolColorArray.xml
index ade8c763515..08ceb31904b 100644
--- a/doc/classes/PoolColorArray.xml
+++ b/doc/classes/PoolColorArray.xml
@@ -4,7 +4,7 @@
 		Array of Colors
 	</brief_description>
 	<description>
-		Array of Color, Contains colors. Optimized for memory usage, can't fragment the memory.
+		Array of Color, Contains colors. Optimized for memory usage, can't fragment the memory. Note that this type is passed by value and not by reference.
 	</description>
 	<tutorials>
 	</tutorials>
diff --git a/doc/classes/PoolIntArray.xml b/doc/classes/PoolIntArray.xml
index 2299793a84b..0f806611aa8 100644
--- a/doc/classes/PoolIntArray.xml
+++ b/doc/classes/PoolIntArray.xml
@@ -4,7 +4,7 @@
 		Integer Array.
 	</brief_description>
 	<description>
-		Integer Array. Contains integers. Optimized for memory usage, can't fragment the memory.
+		Integer Array. Contains integers. Optimized for memory usage, can't fragment the memory. Note that this type is passed by value and not by reference.
 	</description>
 	<tutorials>
 	</tutorials>
diff --git a/doc/classes/PoolRealArray.xml b/doc/classes/PoolRealArray.xml
index 6625942287b..32ad5fde65b 100644
--- a/doc/classes/PoolRealArray.xml
+++ b/doc/classes/PoolRealArray.xml
@@ -4,7 +4,7 @@
 		Real Array.
 	</brief_description>
 	<description>
-		Real Array. Array of floating point values. Can only contain floats. Optimized for memory usage, can't fragment the memory.
+		Real Array. Array of floating point values. Can only contain floats. Optimized for memory usage, can't fragment the memory. Note that this type is passed by value and not by reference.
 	</description>
 	<tutorials>
 	</tutorials>
diff --git a/doc/classes/PoolStringArray.xml b/doc/classes/PoolStringArray.xml
index 39523cef1ee..ba8a87435fc 100644
--- a/doc/classes/PoolStringArray.xml
+++ b/doc/classes/PoolStringArray.xml
@@ -4,7 +4,7 @@
 		String Array.
 	</brief_description>
 	<description>
-		String Array. Array of strings. Can only contain strings. Optimized for memory usage, can't fragment the memory.
+		String Array. Array of strings. Can only contain strings. Optimized for memory usage, can't fragment the memory. Note that this type is passed by value and not by reference.
 	</description>
 	<tutorials>
 	</tutorials>
diff --git a/doc/classes/PoolVector2Array.xml b/doc/classes/PoolVector2Array.xml
index 3000518b0d2..e446defb284 100644
--- a/doc/classes/PoolVector2Array.xml
+++ b/doc/classes/PoolVector2Array.xml
@@ -4,7 +4,7 @@
 		An Array of Vector2.
 	</brief_description>
 	<description>
-		An Array specifically designed to hold Vector2.
+		An Array specifically designed to hold Vector2. Note that this type is passed by value and not by reference.
 	</description>
 	<tutorials>
 	</tutorials>
diff --git a/doc/classes/PoolVector3Array.xml b/doc/classes/PoolVector3Array.xml
index 8ab98ce6f74..dc2b3d527cb 100644
--- a/doc/classes/PoolVector3Array.xml
+++ b/doc/classes/PoolVector3Array.xml
@@ -4,7 +4,7 @@
 		An Array of Vector3.
 	</brief_description>
 	<description>
-		An Array specifically designed to hold Vector3.
+		An Array specifically designed to hold Vector3. Note that this type is passed by value and not by reference.
 	</description>
 	<tutorials>
 	</tutorials>