diff --git a/docs/changelog.md b/docs/changelog.md
index b9b2ccb..40e7f94 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,15 +1,6 @@
 # Changelog
 
-## 0.9.0 RC 1
-
-Changes since last beta:
-
-- Remove attribute locking
-- Fix for METADATA 2.4 being set and PEP 639 recommendation
-- Support PEP 735 in top level validation
-- Adjust URL handling to better match PEP 753
-
-## 0.9.0 (WIP)
+## 0.9.0 (22-10-2024)
 
 This release adds PEP 639 support (METADATA 2.4), refactors the RFC messages,
 and adds a lot of validation (including warnings and opt-in errors), a way to
diff --git a/pyproject_metadata/__init__.py b/pyproject_metadata/__init__.py
index 2a48808..f12b26b 100644
--- a/pyproject_metadata/__init__.py
+++ b/pyproject_metadata/__init__.py
@@ -68,7 +68,7 @@
 import packaging.utils
 import packaging.version
 
-__version__ = "0.9.0rc1"
+__version__ = "0.9.0"
 
 __all__ = [
     "ConfigurationError",