Update RELEASE_NOTES.md for 1.5.6 release (#180)

Arkatufus · web-flow · commit 522bdc880c02 · 2023-05-16T18:46:31.000Z
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
@@ -1,3 +1,7 @@
+#### 1.5.6 May 16 2023
+
+* [Updated Akka.NET to 1.5.6](https://github.com/akkadotnet/akka.net/releases/tag/1.5.6)
+
 #### 1.5.0 March 02 2023
 
 * [Updated Akka.NET to 1.5.0](https://github.com/akkadotnet/akka.net/releases/tag/1.5.0)
