diff --git a/CHANGES.md b/CHANGES.md
index 26658c5e..58c4f21b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,14 @@
 # python-socketio change log
 
+**Release 5.11.3** - 2024-06-19
+
+- New `shutdown()` method added to the client [#1333](https://github.com/miguelgrinberg/python-socketio/issues/1333) ([commit](https://github.com/miguelgrinberg/python-socketio/commit/811e044a46b7d6e4d94bf870e59d0cd8187850d3))
+- Ignore catch-all namespace in client connections [#1351](https://github.com/miguelgrinberg/python-socketio/issues/1351) ([commit](https://github.com/miguelgrinberg/python-socketio/commit/469b7c0dd51eea97979f784d0c94359ad18a96ac))
+- Accept 0 as a callback id [#1329](https://github.com/miguelgrinberg/python-socketio/issues/1329) ([commit](https://github.com/miguelgrinberg/python-socketio/commit/e59351969241c3d7f44560027cf1e44206e17d6c)) (thanks **Ruslan Bel'kov**!)
+- Minor updates to the server and client documentation ([commit](https://github.com/miguelgrinberg/python-socketio/commit/5e78ecbc343d9c7252a6449029263b4a5cb967c8))
+- Remove outdated information in intro section of documentation [#1337](https://github.com/miguelgrinberg/python-socketio/issues/1337) ([commit](https://github.com/miguelgrinberg/python-socketio/commit/82ceaf7a23c51ed1911e550aaf71d6449584eaa0))
+- Fixed typos in server documentation [#1331](https://github.com/miguelgrinberg/python-socketio/issues/1331) ([commit](https://github.com/miguelgrinberg/python-socketio/commit/547449bc70248b1a2c68e362a026d42db083222c)) (thanks **John Sigg**!)
+
 **Release 5.11.2** - 2024-03-24
 
 - Improved routing to catch-all namespace handlers [#1316](https://github.com/miguelgrinberg/python-socketio/issues/1316) ([commit](https://github.com/miguelgrinberg/python-socketio/commit/bd39b8f2156f600ea6de558af03a6be205d6e892)) (thanks **asuka**!)
diff --git a/pyproject.toml b/pyproject.toml
index fd4ed91e..6af9f9f6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "python-socketio"
-version = "5.11.3.dev0"
+version = "5.11.3"
 authors = [
     { name = "Miguel Grinberg", email = "miguel.grinberg@gmail.com" },
 ]