diff --git a/CHANGES.md b/CHANGES.md
index a74e44b..bd2c8a3 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,7 @@
+## Upcoming
+
+  - decode() now throws if it encounters invalid input
+
 ## 0.4.3
  * improved performance a lot
  * dropped support for de- and encoding floats to respect the spec