diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92587752..d330a0f5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# Unreleased
+# Release 4.5.0 (February 14, 2023)
 
 - Runtime support for PEP 702, adding `typing_extensions.deprecated`. Patch
   by Jelle Zijlstra.
@@ -13,7 +13,7 @@
 # Release 4.4.0 (October 6, 2022)
 
 - Add `typing_extensions.Any` a backport of python 3.11's Any class which is
-  subclassable at runtime. (backport from python/cpython#31841, by Shantanu 
+  subclassable at runtime. (backport from python/cpython#31841, by Shantanu
   and Jelle Zijlstra). Patch by James Hilton-Balfe (@Gobot1234).
 - Add initial support for TypeVarLike `default` parameter, PEP 696.
   Patch by Marc Mueller (@cdce8p).
diff --git a/pyproject.toml b/pyproject.toml
index 8a8b48d3..41bf2bed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "flit_core.buildapi"
 # Project metadata
 [project]
 name = "typing_extensions"
-version = "4.4.0"
+version = "4.5.0"
 description = "Backported and Experimental Type Hints for Python 3.7+"
 readme = "README.md"
 requires-python = ">=3.7"