diff --git a/libraries/stdlib/stdlib_defs.mtlx b/libraries/stdlib/stdlib_defs.mtlx
index 34cb116708..2e468a2180 100644
--- a/libraries/stdlib/stdlib_defs.mtlx
+++ b/libraries/stdlib/stdlib_defs.mtlx
@@ -1093,7 +1093,7 @@
     Node: <circle>
     Returns 1 (float) if sample is inside a circle defined by center and radius. Otherwise returns 0
   -->
-  <nodedef name="ND_circle_float" node="circle" version="0.1" isdefaultversion="true" nodegroup="procedural2d">
+  <nodedef name="ND_circle_float" node="circle" nodegroup="procedural2d">
     <input name="sample" type="vector2" value="0, 0" />
     <input name="center" type="vector2" value="0, 0" />
     <input name="radius" type="float" value="0.5" />
@@ -1104,7 +1104,7 @@
     Node: <cloverleaf>
     Returns 1 (float) if sample is inside a cloverleaf shape inscribed by a circle defined by center and radius. Otherwise returns 0
   -->
-  <nodedef name="ND_cloverleaf_float" node="cloverleaf" version="0.1" isdefaultversion="true" nodegroup="procedural2d">
+  <nodedef name="ND_cloverleaf_float" node="cloverleaf" nodegroup="procedural2d">
     <input name="sample" type="vector2" value="0, 0" />
     <input name="center" type="vector2" value="0, 0" />
     <input name="radius" type="float" value="0.5" />
@@ -1116,7 +1116,7 @@
     Returns 1 (float) if sample is inside a hexagon shape inscribed by a circle defined by center and radius. Otherwise returns 0
     Uses formulas from Inigo Quilez SDF samples (iquilezles.org)
   -->
-  <nodedef name="ND_hexagon_float" node="hexagon" version="0.1" isdefaultversion="true" nodegroup="procedural2d">
+  <nodedef name="ND_hexagon_float" node="hexagon" nodegroup="procedural2d">
     <input name="sample" type="vector2" value="0, 0" />
     <input name="center" type="vector2" value="0, 0" />
     <input name="radius" type="float" value="0.5" />
@@ -1129,7 +1129,7 @@
     Segment ends will be rounded.
     Uses formulas from Inigo Quilez SDF samples (iquilezles.org)
   -->
-  <nodedef name="ND_line_float" node="line" version="0.1" isdefaultversion="true" nodegroup="procedural2d">
+  <nodedef name="ND_line_float" node="line" nodegroup="procedural2d">
     <input name="sample" type="vector2" value="0, 0" />
     <input name="center" type="vector2" value="0, 0" />
     <input name="radius" type="float" value="0.1" />
@@ -1143,7 +1143,7 @@
     Creates a black and white pattern of circles with a defined spacing and size (diameter).
     Pattern can be regular or staggered.
   -->
-  <nodedef name="ND_circles_color3" node="circles" version="0.1" isdefaultversion="true" nodegroup="procedural2d">
+  <nodedef name="ND_circles_color3" node="circles" nodegroup="procedural2d">
     <input name="texcoord" type="vector2" value="0, 0" />
     <input name="size" type="float" value="0.5" />
     <input name="spacing" type="float" value="1" />
@@ -1156,7 +1156,7 @@
     Creates a black and white pattern of cloverleafs with a defined spacing and size (diameter of the circles circumscribing the shape).
     Pattern can be regular or staggered.
   -->
-  <nodedef name="ND_cloverleafs_color3" node="cloverleafs" version="0.1" isdefaultversion="true" nodegroup="procedural2d">
+  <nodedef name="ND_cloverleafs_color3" node="cloverleafs" nodegroup="procedural2d">
     <input name="texcoord" type="vector2" value="0, 0" />
     <input name="size" type="float" value="0.5" />
     <input name="spacing" type="float" value="1" />
@@ -1169,7 +1169,7 @@
     Creates a black and white pattern of hexagons with a defined spacing and size (diameter of the circles circumscribing the shape).
     Pattern can be regular or staggered.
   -->
-  <nodedef name="ND_hexagons_color3" node="hexagons" version="0.1" isdefaultversion="true" nodegroup="procedural2d">
+  <nodedef name="ND_hexagons_color3" node="hexagons" nodegroup="procedural2d">
     <input name="texcoord" type="vector2" value="0, 0" />
     <input name="size" type="float" value="0.5" />
     <input name="spacing" type="float" value="1" />
@@ -1182,7 +1182,7 @@
     Creates a black and white pattern of squares with a defined spacing and size (edge).
     Pattern can be regular or staggered.
   -->
-  <nodedef name="ND_squares_color3" node="squares" version="0.1" isdefaultversion="true" nodegroup="procedural2d">
+  <nodedef name="ND_squares_color3" node="squares" nodegroup="procedural2d">
     <input name="texcoord" type="vector2" value="0, 0" />
     <input name="size" type="float" value="0.5" />
     <input name="spacing" type="float" value="1" />
@@ -1195,7 +1195,7 @@
     Creates a black and white grecian pattern with a defined spacing and lines thickness.
     Pattern can be regular or staggered.
   -->
-  <nodedef name="ND_grecian_color3" node="grecian" version="0.1" isdefaultversion="true" nodegroup="procedural2d">
+  <nodedef name="ND_grecian_color3" node="grecian" nodegroup="procedural2d">
     <input name="texcoord" type="vector2" value="0, 0" />
     <input name="thickness" type="float" value="0.05" />
     <input name="spacing" type="float" value="1" />