diff --git a/docs/releases/index.rst b/docs/releases/index.rst
index f8f8903..875047e 100644
--- a/docs/releases/index.rst
+++ b/docs/releases/index.rst
@@ -4,6 +4,7 @@ Release notes
 .. toctree::
     :maxdepth: 2
 
+    v2.21.1
     v2.21.0
     v2.20.2
     v2.20.1
diff --git a/docs/releases/v2.21.1.rst b/docs/releases/v2.21.1.rst
new file mode 100644
index 0000000..9ff36b6
--- /dev/null
+++ b/docs/releases/v2.21.1.rst
@@ -0,0 +1,23 @@
+django-jsonform 2.21.1 release notes
+====================================
+
+
+Dec 02, 2023
+------------
+
+This is a patch release which fixes an important bug in ``oneOf``/``anyOf`` subschema
+matching logic.
+
+
+Bugfixes
+^^^^^^^^
+
+- :issue:`131`: Previously, the form ignored ``oneOf``/``anyOf`` while syncing
+  stale data with new schema. This caused the form to crash. This release fixes that.
+
+
+react-json-form (JavaScript)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+`react-json-form <https://github.com/bhch/react-json-form>`_ has been updated
+to version 2.13.1.