diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1c15614c3..295fcdd0f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [1.74.0](https://github.com/googleapis/python-genai/compare/v1.73.1...v1.74.0) (2026-04-15)
+
+
+### Features
+
+* Add gemini-3.1-flash-tts-preview model to options ([8bdc1c3](https://github.com/googleapis/python-genai/commit/8bdc1c353d987a5a18282fd2265950257891d308))
+
+
+### Documentation
+
+* Regenerate docs for 1.73.1 ([2fb714b](https://github.com/googleapis/python-genai/commit/2fb714b3fefa3a8972da57ef0675116b67e4808e))
+
 ## [1.73.1](https://github.com/googleapis/python-genai/compare/v1.73.0...v1.73.1) (2026-04-14)
 
 
diff --git a/google/genai/version.py b/google/genai/version.py
index d18bbdc1a..811081b0c 100644
--- a/google/genai/version.py
+++ b/google/genai/version.py
@@ -13,4 +13,4 @@
 # limitations under the License.
 #
 
-__version__ = '1.73.1' # x-release-please-version
+__version__ = '1.74.0' # x-release-please-version
diff --git a/pyproject.toml b/pyproject.toml
index af2bfca85..72114f349 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 = "1.73.1"
+version = "1.74.0"
 description = "GenAI Python SDK"
 readme = "README.md"
 license = "Apache-2.0"