Add release notes for release 2.4.0

sayanchowdhury · sayanchowdhury · commit fcbface13726 · 2018-11-28T15:09:33.000+05:30
Signed-off-by: Sayan Chowdhury &lt;sayan.chowdhury2012@gmail.com&gt;
diff --git a/docs/release_notes.rst b/docs/release_notes.rst
@@ -2,6 +2,15 @@
 Release Notes
 =============
 
+2.4.0
+=====
+
+Developer Improvements
+----------------------
+
+* Initial patchset for AARCH64 uploading to EC2
+  (`#156 <https://github.com/fedora-infra/fedimg/pull/156>`_).
+
 2.3.0
 =====
 
