diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index a3906fc0..f393718c 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.9.0"
+  ".": "2.10.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 48bde26e..ac605cf8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.10.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v2.9.0...v2.10.0) (2025-11-20)
+
+
+### Features
+
+* add create_media_buy, update_media_buy, and build_creative to SimpleAPI ([#74](https://github.com/adcontextprotocol/adcp-client-python/issues/74)) ([5545071](https://github.com/adcontextprotocol/adcp-client-python/commit/55450715ee1bfd6e01a886488c5d13b5f4da514e))
+
 ## [2.9.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v2.8.0...v2.9.0) (2025-11-20)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 12078805..9c4ce4ff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "adcp"
-version = "2.9.0"
+version = "2.10.0"
 description = "Official Python client for the Ad Context Protocol (AdCP)"
 authors = [
     {name = "AdCP Community", email = "maintainers@adcontextprotocol.org"}
diff --git a/src/adcp/__init__.py b/src/adcp/__init__.py
index fad10f25..cd8434ca 100644
--- a/src/adcp/__init__.py
+++ b/src/adcp/__init__.py
@@ -179,7 +179,7 @@
     validate_publisher_properties_item,
 )
 
-__version__ = "2.9.0"
+__version__ = "2.10.0"
 
 __all__ = [
     # Client classes