Prepare release 4.10.0 (#343)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23715b6..07fc328 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# Release 4.10.0 (February 24, 2024)
+
+This feature release adds support for PEP 728 (TypedDict with extra
+items) and PEP 742 (``TypeIs``).
+
+There are no changes since 4.10.0rc1.
+
 # Release 4.10.0rc1 (February 17, 2024)
 
 - Add support for PEP 728, supporting the `closed` keyword argument and the
diff --git a/pyproject.toml b/pyproject.toml
index 6351ba2..e0ef343 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@
 # Project metadata
 [project]
 name = "typing_extensions"
-version = "4.10.0rc1"
+version = "4.10.0"
 description = "Backported and Experimental Type Hints for Python 3.8+"
 readme = "README.md"
 requires-python = ">=3.8"