diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9e3e6ffc..ad9fac8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [10.0.0] - 2026-08-20
+### Added
+- [#612](https://github.com/unity-sds/unity-data-services/pull/612) breaking change : catalia daac delivery
+
 ## [9.16.0] - 2025-10-07
 ### Changed
 - [#608](https://github.com/unity-sds/unity-data-services/pull/608) feat:daac response fastapi
diff --git a/setup.py b/setup.py
index e2a11991..243463ec 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
 
 setup(
     name="cumulus_lambda_functions",
-    version="9.16.0",
+    version="10.0.0",
     packages=find_packages(),
     install_requires=install_requires,
     package_data={