diff --git a/dotnet/selenium-dotnet-version.bzl b/dotnet/selenium-dotnet-version.bzl
index d4ecd22884cf1..08358ab30e988 100644
--- a/dotnet/selenium-dotnet-version.bzl
+++ b/dotnet/selenium-dotnet-version.bzl
@@ -1,6 +1,6 @@
 # BUILD FILE SYNTAX: STARLARK
 
-SE_VERSION = "4.26.0"
+SE_VERSION = "4.27.0-nightly202410301443"
 ASSEMBLY_VERSION = "4.0.0.0"
 SUPPORTED_NET_STANDARD_VERSIONS = ["netstandard2.0"]
 
diff --git a/java/version.bzl b/java/version.bzl
index ccde019f14cbd..f882c57e1cd55 100644
--- a/java/version.bzl
+++ b/java/version.bzl
@@ -1,2 +1,2 @@
-SE_VERSION = "4.26.0"
+SE_VERSION = "4.27.0-SNAPSHOT"
 TOOLS_JAVA_VERSION = "17"
diff --git a/javascript/node/selenium-webdriver/BUILD.bazel b/javascript/node/selenium-webdriver/BUILD.bazel
index 992befa374e1b..874c0b18b8bb1 100644
--- a/javascript/node/selenium-webdriver/BUILD.bazel
+++ b/javascript/node/selenium-webdriver/BUILD.bazel
@@ -11,7 +11,7 @@ load("//javascript/private:browsers.bzl", "BROWSERS")
 
 npm_link_all_packages(name = "node_modules")
 
-VERSION = "4.26.0"
+VERSION = "4.27.0-nightly202410301443"
 
 BROWSER_VERSIONS = [
     "v85",
diff --git a/javascript/node/selenium-webdriver/package.json b/javascript/node/selenium-webdriver/package.json
index f7926661daaec..cb31db734d8ac 100644
--- a/javascript/node/selenium-webdriver/package.json
+++ b/javascript/node/selenium-webdriver/package.json
@@ -1,6 +1,6 @@
 {
   "name": "selenium-webdriver",
-  "version": "4.26.0",
+  "version": "4.27.0-nightly202410301443",
   "description": "The official WebDriver JavaScript bindings from the Selenium project",
   "license": "Apache-2.0",
   "keywords": [
diff --git a/py/BUILD.bazel b/py/BUILD.bazel
index 1aa16588308d8..89abaa9c19f44 100644
--- a/py/BUILD.bazel
+++ b/py/BUILD.bazel
@@ -62,7 +62,7 @@ compile_pip_requirements(
     ],
 )
 
-SE_VERSION = "4.26.0"
+SE_VERSION = "4.27.0.dev202410301443"
 
 BROWSER_VERSIONS = [
     "v85",
diff --git a/py/docs/source/conf.py b/py/docs/source/conf.py
index 469d5d1e601a1..131442f1b5f3c 100644
--- a/py/docs/source/conf.py
+++ b/py/docs/source/conf.py
@@ -56,9 +56,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '4.26'
+version = '4.27'
 # The full version, including alpha/beta/rc tags.
-release = '4.26.0'
+release = '4.27.0.dev202410301443'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/py/selenium/__init__.py b/py/selenium/__init__.py
index 14a79a3b9b944..860e3b4fb86d4 100644
--- a/py/selenium/__init__.py
+++ b/py/selenium/__init__.py
@@ -16,4 +16,4 @@
 # under the License.
 
 
-__version__ = "4.26.0"
+__version__ = "4.27.0.dev202410301443"
diff --git a/py/selenium/webdriver/__init__.py b/py/selenium/webdriver/__init__.py
index 6f8e843d7a375..c45de6a75acaf 100644
--- a/py/selenium/webdriver/__init__.py
+++ b/py/selenium/webdriver/__init__.py
@@ -44,7 +44,7 @@
 from .wpewebkit.service import Service as WPEWebKitService  # noqa
 from .wpewebkit.webdriver import WebDriver as WPEWebKit  # noqa
 
-__version__ = "4.26.0"
+__version__ = "4.27.0.dev202410301443"
 
 # We need an explicit __all__ because the above won't otherwise be exported.
 __all__ = [
diff --git a/py/setup.py b/py/setup.py
index 44107ed20783e..d25b031cddfc4 100755
--- a/py/setup.py
+++ b/py/setup.py
@@ -28,7 +28,7 @@
 setup_args = {
     'cmdclass': {'install': install},
     'name': 'selenium',
-    'version': "4.26.0",
+    'version': "4.27.0.dev202410301443",
     'license': 'Apache 2.0',
     'description': 'Official Python bindings for Selenium WebDriver.',
     'long_description': open(join(abspath(dirname(__file__)), "README.rst")).read(),
diff --git a/rb/Gemfile.lock b/rb/Gemfile.lock
index 1ccd495814df1..4aedfe0ed9f98 100644
--- a/rb/Gemfile.lock
+++ b/rb/Gemfile.lock
@@ -3,7 +3,7 @@ PATH
   specs:
     selenium-devtools (0.130.0)
       selenium-webdriver (~> 4.2)
-    selenium-webdriver (4.26.0)
+    selenium-webdriver (4.27.0.nightly)
       base64 (~> 0.2)
       logger (~> 1.4)
       rexml (~> 3.2, >= 3.2.5)
@@ -58,8 +58,8 @@ GEM
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     jar-dependencies (0.4.1)
-    json (2.7.4)
-    json (2.7.4-java)
+    json (2.7.5)
+    json (2.7.5-java)
     language_server-protocol (3.17.0.3)
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
@@ -115,7 +115,7 @@ GEM
       rubocop-ast (>= 1.32.2, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.32.3)
+    rubocop-ast (1.33.0)
       parser (>= 3.3.1.0)
     rubocop-capybara (2.21.0)
       rubocop (~> 1.41)
@@ -196,4 +196,4 @@ DEPENDENCIES
   yard (~> 0.9.11, >= 0.9.36)
 
 BUNDLED WITH
-   2.5.14
+   2.5.6
diff --git a/rb/lib/selenium/webdriver/version.rb b/rb/lib/selenium/webdriver/version.rb
index a40d4e0f85dfb..3a8d951f55562 100644
--- a/rb/lib/selenium/webdriver/version.rb
+++ b/rb/lib/selenium/webdriver/version.rb
@@ -19,6 +19,6 @@
 
 module Selenium
   module WebDriver
-    VERSION = '4.26.0'
+    VERSION = '4.27.0.nightly'
   end # WebDriver
 end # Selenium