Merge pull request #3352 from bdarnell/master

Set version to 6.4 final

Author: bdarnell

Diff for: docs/releases/v6.4.0.rst

@@ -1,8 +1,8 @@
 What's new in Tornado 6.4.0
 ===========================
 
-In Progress
------------
+Nov 28, 2023
+------------
 
 General Changes
 ~~~~~~~~~~~~~~~

Diff for: 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 = "6.4b1"
-version_info = (6, 4, 0, -99)
+version = "6.4"
+version_info = (6, 4, 0, 0)
 
 import importlib
 import typing