diff --git a/CHANGES.md b/CHANGES.md
index 0b76d1e8..a947b214 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,11 @@
 # Changes
 
+## Next version
+
+- #324: When a command causes an unexpectedly uncaught exception,
+        display that command along with the exception itself in both
+        `Lin` and `STM`
+
 ## 0.2
 
 - #342: Add two submodules of combinators in `Util`: