release 21.3.3

Author: gaborbernat

docs/changelog.rst

@@ -6,6 +6,15 @@
 
 .. towncrier release notes start
 
+**********************
+ v21.3.3 (2026-05-13)
+**********************
+
+Bugfixes - 21.3.3
+=================
+
+- recognize GraalPy interpreters using the normalized ``GraalPy`` name - by :user:`timfel`. (:issue:`3144`)
+
 **********************
  v21.3.2 (2026-05-12)
 **********************