diff --git a/docs/lib-in_shape.md b/docs/lib-in_shape.md
index e7626fb7..eafee1d5 100644
--- a/docs/lib-in_shape.md
+++ b/docs/lib-in_shape.md
@@ -2,6 +2,8 @@
 
 Checks wether a point is inside a shape.
 
+**Since:** 1.3
+
 ## Parameters
 
 - `shapt_pts` : The shape points.