diff --git a/RELEASES.md b/RELEASES.md
index 0fcffb0..b4fdad6 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,4 +1,11 @@
-## 1.3 (2016-02-20)
+## 0.4 (2016-04-02)
+
+### Breaking Changes
+* Updated to the latest version of serde. Because tarpc exposes serde in
+  its API, this forces downstream code to update to the latest version of
+  serde, as well.
+
+## 0.3 (2016-02-20)
 
 ### Breaking Changes
 * The timeout arg to `serve` was replaced with a `Config` struct, which