diff --git a/src/experimental/note.md b/src/experimental/note.md
index 50531141..e5002975 100644
--- a/src/experimental/note.md
+++ b/src/experimental/note.md
@@ -9,4 +9,40 @@ to_do:
 
 - doc: sf add convexity
 
-- new: polyline_join, select, polyhedra/superellipsoid, polyhedra/dodecahedron, polyhedra/hexahedron, polyhedra/icosahedron, polyhedra/octahedron, polyhedra/tetrahedron
\ No newline at end of file
+- new: polyline_join, select, polyhedra/superellipsoid, polyhedra/dodecahedron, polyhedra/hexahedron, polyhedra/icosahedron, polyhedra/octahedron, polyhedra/tetrahedron
+
+release:
+
+
+# Preview
+
+## 2D/3D Function
+
+ Signature | Description
+--|--
+[**rails2sections**(rails)](https://openhome.cc/eGossip/OpenSCAD/lib3x-rails2sections.html) | create sections along rails.
+
+## Transformation
+
+ Signature | Description
+--|--
+[**select**(i)](https://openhome.cc/eGossip/OpenSCAD/lib3x-select.html) | select module objects.
+[**polyline_join**(points)](https://openhome.cc/eGossip/OpenSCAD/lib3x-polyline_join.html) | place a join on each point. Hull each pair of joins and union all convex hulls.
+
+## 2D Shape
+
+ Signature | Description
+--|--
+[**shape_star**([outer_radius, inner_radius, n])](https://openhome.cc/eGossip/OpenSCAD/lib3x-shape_star.html) | create a 2D star.
+
+## Polyhedra
+
+ Signature | Description
+--|--
+[**polyhedra/star**([outerRadius, innerRadius, height, n])](https://openhome.cc/eGossip/OpenSCAD/lib3x-polyhedra_star.html) | create a 3D star.
+[**polyhedra/tetrahedron**(radius[, detail])](https://openhome.cc/eGossip/OpenSCAD/lib3x-polyhedra_tetrahedron.html) | create a tetrahedron.
+[**polyhedra/hexahedron**(radius[, detail])](https://openhome.cc/eGossip/OpenSCAD/lib3x-polyhedra_hexahedron.html) | create a hexahedron.
+[**polyhedra/octahedron**(radius[, detail])](https://openhome.cc/eGossip/OpenSCAD/lib3x-polyhedra_octahedron.html) | create a octahedron.
+[**polyhedra/dodecahedron**(radius[, detail])](https://openhome.cc/eGossip/OpenSCAD/lib3x-polyhedra_dodecahedron.html) | create a dodecahedron.
+[**polyhedra/icosahedron**(radius[, detail])](https://openhome.cc/eGossip/OpenSCAD/lib3x-polyhedra_icosahedron.html) | create a icosahedron.
+[**polyhedra/superellipsoid**(radius[, detail])](https://openhome.cc/eGossip/OpenSCAD/lib3x-polyhedra_superellipsoid.html) | create a superellipsoid.