diff --git a/azure/functions/__init__.py b/azure/functions/__init__.py
index 684e853..b79e2c3 100644
--- a/azure/functions/__init__.py
+++ b/azure/functions/__init__.py
@@ -113,4 +113,4 @@
     'mcp_content',
 )
 
-__version__ = '2.2.0b5'
+__version__ = '1.26.0b3'
diff --git a/azure/functions/decorators/function_app.py b/azure/functions/decorators/function_app.py
index 78c3a39..9ed2b6f 100644
--- a/azure/functions/decorators/function_app.py
+++ b/azure/functions/decorators/function_app.py
@@ -1726,7 +1726,7 @@ def decorator(fb: FunctionBuilder) -> FunctionBuilder:
                                             list_item_type)
                                         for union_arg in union_args:
                                             if (isinstance(union_arg, type)
-                                                    and union_arg is not
+                                                    and union_arg is not  # noqa
                                                     type(None)):
                                                 if hasattr(union_arg,
                                                            '__module__'):
diff --git a/pyproject.toml b/pyproject.toml
index 4214924..2b44c9c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 [project]
 name = "azure-functions"
 dynamic = ["version"]
-requires-python = ">=3.13"
+requires-python = ">=3.10,<3.13"
 authors = [{ name = "Azure Functions team at Microsoft Corp.", email = "azurefunctions@microsoft.com" }]
 description = "Python library for Azure Functions."
 readme = "README.md"
@@ -14,8 +14,9 @@ classifiers = [
     'License :: OSI Approved :: MIT License',
     'Intended Audience :: Developers',
     'Programming Language :: Python :: 3',
-    'Programming Language :: Python :: 3.13',
-    'Programming Language :: Python :: 3.14',
+    'Programming Language :: Python :: 3.10',
+    'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.12',
     'Operating System :: Microsoft :: Windows',
     'Operating System :: POSIX',
     'Operating System :: MacOS :: MacOS X',