diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b8aca2..275c6bb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 Releases
 ========
 
+v0.2.0 (unreleased)
+===================
+
+-   Repeatedly appending to the same error is now faster due to fewer
+    allocations.
+
+
 v0.1.0 (2017-31-03)
 ===================