diff --git a/docs/releases/v6.3.0.rst b/docs/releases/v6.3.0.rst
index da1be97d04..218fc6530e 100644
--- a/docs/releases/v6.3.0.rst
+++ b/docs/releases/v6.3.0.rst
@@ -1,8 +1,8 @@
 What's new in Tornado 6.3.0
 ===========================
 
-In progress
------------
+Apr 17, 2023
+------------
 
 Highlights
 ~~~~~~~~~~
diff --git a/tornado/__init__.py b/tornado/__init__.py
index c540a45af4..c8e12ae16f 100644
--- a/tornado/__init__.py
+++ b/tornado/__init__.py
@@ -22,8 +22,8 @@
 # is zero for an official release, positive for a development branch,
 # or negative for a release candidate or beta (after the base version
 # number has been incremented)
-version = "6.3b1"
-version_info = (6, 3, 0, -99)
+version = "6.3"
+version_info = (6, 3, 0, 0)
 
 import importlib
 import typing