diff --git a/docs/release_notes.rst b/docs/release_notes.rst
index 903ef43d5..8b1de9683 100644
--- a/docs/release_notes.rst
+++ b/docs/release_notes.rst
@@ -4,9 +4,18 @@ Release Notes
 Unreleased
 ----------
 
+
+
+v5.1.0
+----------
+
+:date: 2021-06-29
+
+* Introduce ``DynamicMapAttribute`` to enable partially defining attributes on a ``MapAttribute`` (#868)
+* Quality of life improvements: Type annotations, better comment, more resilient test (#934, #936, #948)
+* Fix type annotation of ``is_in`` conditional expression (#947)
 * Null errors should include full attribute path (#915)
-* Fix type annotation of ``is_in`` conditional expression
-* Fix for serializing and deserializing dates prior to year 1000
+* Fix for serializing and deserializing dates prior to year 1000 (#949)
 
 
 v5.0.3
diff --git a/pynamodb/__init__.py b/pynamodb/__init__.py
index 8cd3e1b76..b0e968e7f 100644
--- a/pynamodb/__init__.py
+++ b/pynamodb/__init__.py
@@ -7,4 +7,4 @@
 """
 __author__ = 'Jharrod LaFon'
 __license__ = 'MIT'
-__version__ = '5.0.3'
+__version__ = '5.1.0'