diff --git a/changelog.md b/changelog.md
index dd6e580ff2..25d1014463 100644
--- a/changelog.md
+++ b/changelog.md
@@ -32,6 +32,8 @@ HEAD
   about them will remain in the info error channel for debugging purposes.
 - Improvement: `start_accept` and `listen` errors are now reported to the caller
   either via an exception or an ec parameter.
+- Improvement: Outgoing writes are now batched for improved message throughput
+  and reduced system call and TCP frame overhead.
 - Bug: Fix some cases of calls to empty lib::function objects.
 - Bug: Fix memory leak of connection objects due to cached handlers holding on to
   reference counted pointers. #310 Thank you otaras for reporting.