diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e2133c59..b5bc33422 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## [1.73.0](https://github.com/googleapis/python-genai/compare/v1.72.0...v1.73.0) (2026-04-13)
+
+
+### Features
+
+* Add DeepResearchAgentConfig fields ([ec8ca87](https://github.com/googleapis/python-genai/commit/ec8ca87e6e0a80d363ebceadeacb623c0f479776))
+* Add webhook and webhookConfig for js and python sdk ([ccec350](https://github.com/googleapis/python-genai/commit/ccec35073534930130993443e4dea9bed6b07006))
+* Add webhook_config to batches.create() and models.generate_videos() ([772d2fc](https://github.com/googleapis/python-genai/commit/772d2fc0a716e5a23ab241b1efcb1dc5c73fde9e))
+* Wire the webhook into python and js client. ([841bf22](https://github.com/googleapis/python-genai/commit/841bf220d0bf1c539ab349998afb388118c6af05))
+
+
+### Bug Fixes
+
+* Refine Pyink blank line insertion logic and fix range-based formatting regressions. ([b91bda5](https://github.com/googleapis/python-genai/commit/b91bda5d587ee6217fcff8f4e1b8eee4aebb9203))
+
 ## [1.72.0](https://github.com/googleapis/python-genai/compare/v1.71.0...v1.72.0) (2026-04-09)
 
 
diff --git a/google/genai/version.py b/google/genai/version.py
index 8ef69ed6b..7e978c5a7 100644
--- a/google/genai/version.py
+++ b/google/genai/version.py
@@ -13,4 +13,4 @@
 # limitations under the License.
 #
 
-__version__ = '1.72.0' # x-release-please-version
+__version__ = '1.73.0' # x-release-please-version
diff --git a/pyproject.toml b/pyproject.toml
index 0f882041a..19cabb4d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = ["setuptools", "wheel", "twine>=6.1.0", "packaging>=24.2", "pkginfo>=
 
 [project]
 name = "google-genai"
-version = "1.72.0"
+version = "1.73.0"
 description = "GenAI Python SDK"
 readme = "README.md"
 license = "Apache-2.0"