diff --git a/CHANGELOG.md b/CHANGELOG.md
index c6a600f2..d785dbec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+### 2.0.4
+
+ - Allow `AMP_DEBUG` to be defined via the environment.
+ - Fix formatting of stack traces used for double resolution debugging.
+
 ### 2.0.3
 
  - `Loop::set()` replaces the current driver with a dummy driver for the time of `gc_collect_cycles()` now. This allows cyclic references to be cleaned up properly before the new driver is set. Without such a fix, cyclic references might have been cleaned up later, e.g. cancelling their watcher IDs on the new loop, thereby cancelling the wrong watchers.