diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1e79d3285..acc50b0dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.5.0](https://github.com/googleapis/python-genai/compare/v2.4.0...v2.5.0) (2026-05-20)
+
+
+### Features
+
+* Add Gemini 3.5 Flash model to options ([706fd02](https://github.com/googleapis/python-genai/commit/706fd021fb0e0119e0867be2267592e7709cd274))
+
 ## [2.4.0](https://github.com/googleapis/python-genai/compare/v2.3.0...v2.4.0) (2026-05-17)
 
 
diff --git a/google/genai/version.py b/google/genai/version.py
index e43a34512..4aacfabb4 100644
--- a/google/genai/version.py
+++ b/google/genai/version.py
@@ -13,4 +13,4 @@
 # limitations under the License.
 #
 
-__version__ = '2.4.0' # x-release-please-version
+__version__ = '2.5.0' # x-release-please-version
diff --git a/pyproject.toml b/pyproject.toml
index f645d1a77..8c6121378 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 = "2.4.0"
+version = "2.5.0"
 description = "GenAI Python SDK"
 readme = "README.md"
 license = "Apache-2.0"