Set release date

oschwald · oschwald · commit 35e77913ae1f · 2023-12-05T15:05:43.000-08:00
diff --git a/releasenotes.md b/releasenotes.md
@@ -1,6 +1,6 @@
 # Release Notes #
 
-## 4.1.0
+## 4.1.0 (2023-12-05) ##
 
 * .NET 5.0 has been removed as a target as it has reach its end of life.
   However, if you are using .NET 5.0, the .NET Standard 2.1 target should
