From 60203788253bc0235438cba3cda5983049192483 Mon Sep 17 00:00:00 2001
From: Farid Rashidi <farid.rsh@gmail.com>
Date: Fri, 22 Apr 2022 18:46:49 -0400
Subject: [PATCH] update release notes

---
 docs/source/release_notes.rst | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docs/source/release_notes.rst b/docs/source/release_notes.rst
index ce3d847..5254032 100644
--- a/docs/source/release_notes.rst
+++ b/docs/source/release_notes.rst
@@ -7,6 +7,15 @@ Release Notes
 =============
 
 
+Version 0.0.21 :small:`April 22, 2022`
+-----------------------------------------
+
+This version includes:
+
+    - Fix some bugs.
+    - Improve the documentations.
+
+
 Version 0.0.20 :small:`November 22, 2021`
 -----------------------------------------