diff --git a/CHANGES.md b/CHANGES.md
index 1e77d8c..7723025 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,9 @@
 # python-socketio change log
 
+**Release 5.16.4** - 2026-08-07
+
+- Delete incomplete binary packet when client disconnects ([commit](https://github.com/miguelgrinberg/python-socketio/commit/4bec3ef87bcfd6ab5b94cd3ac09d873283a6960e))
+
 **Release 5.16.3** - 2026-06-15
 
 - Catch all exceptions in redis and rabbitmq client managers [#1581](https://github.com/miguelgrinberg/python-socketio/issues/1581) ([commit](https://github.com/miguelgrinberg/python-socketio/commit/80bb5c9b07e6b53e45f610ec29a24124c539d41b))
diff --git a/pyproject.toml b/pyproject.toml
index 9e88ad0..78a878c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "python-socketio"
-version = "5.16.4.dev0"
+version = "5.16.4"
 license = {text = "MIT"}
 authors = [
     { name = "Miguel Grinberg", email = "miguel.grinberg@gmail.com" },