diff --git a/.github/scripts/autorelease.py b/.github/scripts/autorelease.py
index c6c7bc8..0b0e504 100644
--- a/.github/scripts/autorelease.py
+++ b/.github/scripts/autorelease.py
@@ -1,6 +1,5 @@
 import argparse
 import logging
-import re
 from typing import List, Optional
 
 import httpx
@@ -47,28 +46,17 @@ def get_release_tags(github_token: str) -> List[str]:
 
 
 RELEASE_BRANCH = "master"
-LEGACY_BRANCH_PATTERN = re.compile(r"^v(?P<major_release>\d+)$", re.I)
-
-
-def get_major_release(current_branch: str, project_version_str: str) -> Optional[str]:
-    if current_branch == RELEASE_BRANCH:
-        return str(Version(project_version_str).major)
-
-    branch_matching = LEGACY_BRANCH_PATTERN.match(current_branch)
-    if branch_matching:
-        return branch_matching.group("major_release")
-
-    return None
 
 
 def main(github_token: str, current_branch: str) -> None:
+    if current_branch != RELEASE_BRANCH:
+        logger.info("Branch %s is not a valid release branch", current_branch)
+        return
+
     project_version_str = get_project_version()
     logger.info("Project version %s", project_version_str)
 
-    major_release = get_major_release(current_branch, project_version_str)
-    if major_release is None:
-        logger.info("Branch %s is not a valid release branch", current_branch)
-        return
+    major_release = str(Version(project_version_str).major)
 
     if not project_version_str.startswith(major_release):
         logger.info(
diff --git a/.github/workflows/autorelease.yml b/.github/workflows/autorelease.yml
index ec7cfb9..e4e7754 100644
--- a/.github/workflows/autorelease.yml
+++ b/.github/workflows/autorelease.yml
@@ -3,7 +3,7 @@ name: Autorelease
 on:
   pull_request:
     types: [ closed ]
-    branches: [ master, v2 ]
+    branches: [ master ]
 
 jobs:
   autorelease:
diff --git a/.github/workflows/python-linters.yml b/.github/workflows/python-linters.yml
index eedbec2..c4a4f53 100644
--- a/.github/workflows/python-linters.yml
+++ b/.github/workflows/python-linters.yml
@@ -3,7 +3,7 @@ name: Linters
 on:
   push:
   pull_request:
-    branches: [ master, v2 ]
+    branches: [ master ]
 
 jobs:
   build:
diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index 6e82481..40b1222 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -3,7 +3,7 @@ name: Tests
 on:
   push:
   pull_request:
-    branches: [ master, v2 ]
+    branches: [ master ]
 
 jobs:
   test: