diff --git a/CHANGELOG.md b/CHANGELOG.md
index 21c2fb69d..3f5891fa5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# v26.0.0-snapshot
+# v26.1.0a1
 
 Kubernetes API Version: v1.26.1
 
diff --git a/README.md b/README.md
index 3232905b6..8b31b50a1 100644
--- a/README.md
+++ b/README.md
@@ -95,6 +95,7 @@ supported versions of Kubernetes clusters.
 - [client 23.y.z](https://pypi.org/project/kubernetes/23.6.0/): Kubernetes 1.22 or below (+-), Kubernetes 1.23 (✓), Kubernetes 1.24 or above (+-)
 - [client 24.y.z](https://pypi.org/project/kubernetes/24.2.0/): Kubernetes 1.23 or below (+-), Kubernetes 1.24 (✓), Kubernetes 1.25 or above (+-)
 - [client 25.y.z](https://pypi.org/project/kubernetes/25.3.0/): Kubernetes 1.24 or below (+-), Kubernetes 1.25 (✓), Kubernetes 1.26 or above (+-)
+- [client 26.y.z](https://pypi.org/project/kubernetes/26.1.0a1/): Kubernetes 1.25 or below (+-), Kubernetes 1.26 (✓), Kubernetes 1.27 or above (+-)
 
 > See [here](#homogenizing-the-kubernetes-python-client-versions) for an explanation of why there is no v13-v16 release.
 
@@ -144,11 +145,12 @@ between client-python versions.
 | 22.0 Alpha/Beta | Kubernetes main repo, 1.22 branch    | ✗                             |
 | 22.0            | Kubernetes main repo, 1.22 branch    | ✗                             |
 | 23.0 Alpha/Beta | Kubernetes main repo, 1.23 branch    | ✗                             |
-| 23.0            | Kubernetes main repo, 1.23 branch    | ✓                             |
+| 23.0            | Kubernetes main repo, 1.23 branch    | ✗                             |
 | 24.0 Alpha/Beta | Kubernetes main repo, 1.24 branch    | ✗                             |
 | 24.0            | Kubernetes main repo, 1.24 branch    | ✓                             |
 | 25.0 Alpha/Beta | Kubernetes main repo, 1.25 branch    | ✗                             |
 | 25.0            | Kubernetes main repo, 1.25 branch    | ✓                             |
+| 26.0 Alpha/Beta | Kubernetes main repo, 1.26 branch    | ✓                             |
 
 > See [here](#homogenizing-the-kubernetes-python-client-versions) for an explanation of why there is no v13-v16 release.
 
diff --git a/kubernetes/README.md b/kubernetes/README.md
index 3b95eec5c..368591fca 100644
--- a/kubernetes/README.md
+++ b/kubernetes/README.md
@@ -4,7 +4,7 @@ No description provided (generated by Openapi Generator https://github.com/opena
 This Python package is automatically generated by the [OpenAPI Generator](https://openapi-generator.tech) project:
 
 - API version: release-1.26
-- Package version: 26.0.0-snapshot
+- Package version: 26.1.0a1
 - Build package: org.openapitools.codegen.languages.PythonClientCodegen
 
 ## Requirements.
diff --git a/kubernetes/__init__.py b/kubernetes/__init__.py
index 22f8f5d89..aca4e2b7a 100644
--- a/kubernetes/__init__.py
+++ b/kubernetes/__init__.py
@@ -14,7 +14,7 @@
 
 __project__ = 'kubernetes'
 # The version is auto-updated. Please do not edit.
-__version__ = "26.0.0-snapshot"
+__version__ = "26.1.0a1"
 
 from . import client
 from . import config
diff --git a/kubernetes/client/__init__.py b/kubernetes/client/__init__.py
index ae2808dd8..c4f3a6610 100644
--- a/kubernetes/client/__init__.py
+++ b/kubernetes/client/__init__.py
@@ -14,7 +14,7 @@
 
 from __future__ import absolute_import
 
-__version__ = "26.0.0-snapshot"
+__version__ = "26.1.0a1"
 
 # import apis into sdk package
 from kubernetes.client.api.well_known_api import WellKnownApi
diff --git a/kubernetes/client/api_client.py b/kubernetes/client/api_client.py
index 8f2a182ed..0b5469be3 100644
--- a/kubernetes/client/api_client.py
+++ b/kubernetes/client/api_client.py
@@ -78,7 +78,7 @@ class ApiClient(object):
             self.default_headers[header_name] = header_value
         self.cookie = cookie
         # Set default User-Agent.
-        self.user_agent = 'OpenAPI-Generator/26.0.0-snapshot/python'
+        self.user_agent = 'OpenAPI-Generator/26.1.0a1/python'
         self.client_side_validation = configuration.client_side_validation
 
     def __enter__(self):
diff --git a/kubernetes/client/configuration.py b/kubernetes/client/configuration.py
index e7d24d442..d84cfc16a 100644
--- a/kubernetes/client/configuration.py
+++ b/kubernetes/client/configuration.py
@@ -350,7 +350,7 @@ class Configuration(object):
                "OS: {env}\n"\
                "Python Version: {pyversion}\n"\
                "Version of the API: release-1.26\n"\
-               "SDK Package Version: 26.0.0-snapshot".\
+               "SDK Package Version: 26.1.0a1".\
                format(env=sys.platform, pyversion=sys.version)
 
     def get_host_settings(self):
diff --git a/scripts/constants.py b/scripts/constants.py
index ed4e14fcd..0f7db1b35 100644
--- a/scripts/constants.py
+++ b/scripts/constants.py
@@ -18,7 +18,7 @@ import sys
 KUBERNETES_BRANCH = "release-1.26"
 
 # client version for packaging and releasing.
-CLIENT_VERSION = "26.0.0-snapshot"
+CLIENT_VERSION = "26.1.0a1"
 
 # Name of the release package
 PACKAGE_NAME = "kubernetes"
diff --git a/setup.py b/setup.py
index 6c24dff4f..cb441284f 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@ from setuptools import setup
 
 # Do not edit these constants. They will be updated automatically
 # by scripts/update-client.sh.
-CLIENT_VERSION = "26.0.0-snapshot"
+CLIENT_VERSION = "26.1.0a1"
 PACKAGE_NAME = "kubernetes"
 DEVELOPMENT_STATUS = "3 - Alpha"
 
diff --git a/tox.ini b/tox.ini
index 8a6bdac13..b4657af69 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,7 @@ envlist =
    py3{6,7,8,9}-functional
 
 [testenv]
-passenv = TOXENV CI TRAVIS TRAVIS_*
+passenv = TOXENV,CI,TRAVIS,TRAVIS_*
 usedevelop = True
 install_command = pip install -U {opts} {packages}
 deps = -r{toxinidir}/test-requirements.txt