diff --git a/.ci/scripts/check_release.py b/.ci/scripts/check_release.py
index 611c882c..6e079995 100755
--- a/.ci/scripts/check_release.py
+++ b/.ci/scripts/check_release.py
@@ -99,9 +99,9 @@ def main(options: argparse.Namespace, template_config: dict[str, t.Any]) -> int:
 
     # Warning: This will not work if branch names contain "/" but we don't really care here.
     heads = [h.split("/")[-1] for h in repo.git.branch("--remote").split("\n")]
-    available_branches = [h for h in heads if re.fullmatch(RELEASE_BRANCH_REGEX, h)]
-    available_branches.sort(key=lambda ver: Version(ver))
-    available_branches.append(DEFAULT_BRANCH)
+    available_branches = sorted(
+        {h for h in heads if re.fullmatch(RELEASE_BRANCH_REGEX, h)}, key=lambda ver: Version(ver)
+    ) + [DEFAULT_BRANCH]
 
     branches = options.branches
     if branches == "supported":
diff --git a/.ci/scripts/check_requirements.py b/.ci/scripts/check_requirements.py
index cf9efbe9..eca49687 100755
--- a/.ci/scripts/check_requirements.py
+++ b/.ci/scripts/check_requirements.py
@@ -9,7 +9,6 @@
 import warnings
 from packaging.requirements import Requirement
 
-
 CHECK_MATRIX = [
     ("pyproject.toml", True, True, True),
     ("requirements.txt", True, True, True),
diff --git a/.ci/scripts/collect_changes.py b/.ci/scripts/collect_changes.py
index fbb5d59d..1a0003c8 100755
--- a/.ci/scripts/collect_changes.py
+++ b/.ci/scripts/collect_changes.py
@@ -25,7 +25,6 @@
 from git import GitCommandError, Repo
 from packaging.version import parse as parse_version
 
-
 PYPI_PROJECT = "pulp_python"
 
 # Read Towncrier settings
diff --git a/.github/workflows/scripts/stage-changelog-for-default-branch.py b/.github/workflows/scripts/stage-changelog-for-default-branch.py
index 3950d7f9..1a21419d 100755
--- a/.github/workflows/scripts/stage-changelog-for-default-branch.py
+++ b/.github/workflows/scripts/stage-changelog-for-default-branch.py
@@ -12,16 +12,13 @@
 from git import Repo
 from git.exc import GitCommandError
 
-
-helper = textwrap.dedent(
-    """\
+helper = textwrap.dedent("""\
         Stage the changelog for a release on main branch.
 
         Example:
             $ python .github/workflows/scripts/stage-changelog-for-default-branch.py 3.4.0
 
-    """
-)
+    """)
 
 parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter, description=helper)
 
diff --git a/.github/workflows/update_ci.yml b/.github/workflows/update_ci.yml
index 8da2529f..98e44603 100644
--- a/.github/workflows/update_ci.yml
+++ b/.github/workflows/update_ci.yml
@@ -196,4 +196,35 @@ jobs:
         env:
           GH_TOKEN: "${{ secrets.RELEASE_TOKEN }}"
         continue-on-error: true
+      - uses: "actions/checkout@v6"
+        with:
+          fetch-depth: 0
+          path: "pulp_python"
+          ref: "3.27"
+
+      - name: "Run update"
+        working-directory: "pulp_python"
+        run: |
+          ../plugin_template/scripts/update_ci.sh --release
+
+      - name: "Create Pull Request for CI files"
+        uses: "peter-evans/create-pull-request@v8"
+        id: "create_pr_3_27"
+        with:
+          token: "${{ secrets.RELEASE_TOKEN }}"
+          path: "pulp_python"
+          committer: "pulpbot <pulp-infra@redhat.com>"
+          author: "pulpbot <pulp-infra@redhat.com>"
+          title: "Update CI files for branch 3.27"
+          branch: "update-ci/3.27"
+          base: "3.27"
+          delete-branch: true
+      - name: "Mark PR automerge"
+        working-directory: "pulp_python"
+        run: |
+          gh pr merge --rebase --auto "${{ steps.create_pr_3_27.outputs.pull-request-number }}"
+        if: "steps.create_pr_3_27.outputs.pull-request-number"
+        env:
+          GH_TOKEN: "${{ secrets.RELEASE_TOKEN }}"
+        continue-on-error: true
 ...
diff --git a/CHANGES/+non-https-syncs.bugfix b/CHANGES/+non-https-syncs.bugfix
deleted file mode 100644
index bc1833da..00000000
--- a/CHANGES/+non-https-syncs.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fixed sync issue where non https URLs were not allowed.
diff --git a/CHANGES/1000.removal b/CHANGES/1000.removal
deleted file mode 100644
index b1a7ec60..00000000
--- a/CHANGES/1000.removal
+++ /dev/null
@@ -1 +0,0 @@
-Deprecated publications and added documentation for migrating off of them.
diff --git a/lint_requirements.txt b/lint_requirements.txt
index 3c2947a0..5c38ff60 100644
--- a/lint_requirements.txt
+++ b/lint_requirements.txt
@@ -5,7 +5,7 @@
 #
 # For more info visit https://github.com/pulp/plugin_template
 
-black==24.3.0
+black~=26.3  # Pin style to the year. https://black.readthedocs.io/en/stable/faq.html#how-stable-is-black-s-style
 bump-my-version
 check-manifest
 flake8
diff --git a/pulp_python/app/__init__.py b/pulp_python/app/__init__.py
index 73c18931..46f4aa97 100644
--- a/pulp_python/app/__init__.py
+++ b/pulp_python/app/__init__.py
@@ -10,7 +10,7 @@ class PulpPythonPluginAppConfig(PulpPluginAppConfig):
 
     name = "pulp_python.app"
     label = "python"
-    version = "3.27.0.dev"
+    version = "3.28.0.dev"
     python_package_name = "pulp-python"
     domain_compatible = True
 
diff --git a/pulp_python/app/global_access_conditions.py b/pulp_python/app/global_access_conditions.py
index a2a5ee61..8abb14f1 100644
--- a/pulp_python/app/global_access_conditions.py
+++ b/pulp_python/app/global_access_conditions.py
@@ -1,6 +1,5 @@
 from django.conf import settings
 
-
 # Access Condition methods that can be used with PyPI access policies
 
 
diff --git a/pulp_python/app/serializers.py b/pulp_python/app/serializers.py
index f8d93322..6c716b9b 100644
--- a/pulp_python/app/serializers.py
+++ b/pulp_python/app/serializers.py
@@ -30,7 +30,6 @@
     parse_project_metadata,
 )
 
-
 log = logging.getLogger(__name__)
 
 
diff --git a/pulp_python/app/tasks/publish.py b/pulp_python/app/tasks/publish.py
index 39102eb5..4e8a8038 100644
--- a/pulp_python/app/tasks/publish.py
+++ b/pulp_python/app/tasks/publish.py
@@ -12,7 +12,6 @@
 from pulp_python.app.serializers import PythonPublicationSerializer
 from pulp_python.app.utils import write_simple_index, write_simple_detail
 
-
 log = logging.getLogger(__name__)
 
 
diff --git a/pulp_python/app/utils.py b/pulp_python/app/utils.py
index 14385092..133a6a92 100644
--- a/pulp_python/app/utils.py
+++ b/pulp_python/app/utils.py
@@ -20,7 +20,6 @@
 from pulpcore.plugin.exceptions import TimeoutException
 from pulpcore.plugin.util import get_domain
 
-
 log = logging.getLogger(__name__)
 
 
diff --git a/pulp_python/pytest_plugin.py b/pulp_python/pytest_plugin.py
index 54db7caa..799a7a2a 100644
--- a/pulp_python/pytest_plugin.py
+++ b/pulp_python/pytest_plugin.py
@@ -13,7 +13,6 @@
     PYTHON_WHEEL_FILENAME,
 )
 
-
 # Bindings API Fixtures
 
 
diff --git a/pulp_python/tests/functional/api/test_domains.py b/pulp_python/tests/functional/api/test_domains.py
index 46d6ae10..b67be1d5 100644
--- a/pulp_python/tests/functional/api/test_domains.py
+++ b/pulp_python/tests/functional/api/test_domains.py
@@ -12,7 +12,6 @@
 )
 from urllib.parse import urlsplit
 
-
 pytestmark = pytest.mark.skipif(not settings.DOMAIN_ENABLED, reason="Domain not enabled")
 
 
diff --git a/pulp_python/tests/functional/api/test_export_import.py b/pulp_python/tests/functional/api/test_export_import.py
index 9681411b..8eb623ef 100644
--- a/pulp_python/tests/functional/api/test_export_import.py
+++ b/pulp_python/tests/functional/api/test_export_import.py
@@ -14,7 +14,6 @@
     PYTHON_SM_PROJECT_SPECIFIER,
 )
 
-
 pytestmark = [
     pytest.mark.skipif(
         "/tmp" not in settings.ALLOWED_EXPORT_PATHS,
diff --git a/pulp_python/tests/functional/api/test_pypi_apis.py b/pulp_python/tests/functional/api/test_pypi_apis.py
index 35d269ad..2cbdc87a 100644
--- a/pulp_python/tests/functional/api/test_pypi_apis.py
+++ b/pulp_python/tests/functional/api/test_pypi_apis.py
@@ -16,7 +16,6 @@
 )
 from pulp_python.tests.functional.utils import ensure_metadata
 
-
 PYPI_LAST_SERIAL = "X-PYPI-LAST-SERIAL"
 
 
diff --git a/pulp_python/tests/functional/constants.py b/pulp_python/tests/functional/constants.py
index af5744b2..d1b54ac2 100644
--- a/pulp_python/tests/functional/constants.py
+++ b/pulp_python/tests/functional/constants.py
@@ -1,7 +1,6 @@
 import os
 from urllib.parse import urljoin
 
-
 PULP_FIXTURES_BASE_URL = os.environ.get(
     "REMOTE_FIXTURES_ORIGIN", "https://fixtures.pulpproject.org/"
 )
diff --git a/pyproject.toml b/pyproject.toml
index 759ad698..f360f415 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ build-backend = 'setuptools.build_meta'
 
 [project]
 name = "pulp-python"
-version = "3.27.0.dev"
+version = "3.28.0.dev"
 description = "pulp-python plugin for the Pulp Project"
 readme = "README.md"
 authors = [
@@ -79,7 +79,7 @@ ignore = [
 [tool.bumpversion]
 # This section is managed by the plugin template. Do not edit manually.
 
-current_version = "3.27.0.dev"
+current_version = "3.28.0.dev"
 commit = false
 tag = false
 parse = "(?P<major>\\d+)\\.(?P<minor>\\d+)\\.(?P<alpha>0a)?(?P<patch>\\d+)(\\.(?P<release>[a-z]+))?"
diff --git a/template_config.yml b/template_config.yml
index f4856d3c..fdd1f914 100644
--- a/template_config.yml
+++ b/template_config.yml
@@ -27,7 +27,7 @@ extra_files: []
 flake8: true
 flake8_ignore: []
 github_org: "pulp"
-latest_release_branch: "3.26"
+latest_release_branch: "3.27"
 lint_requirements: true
 os_required_packages: []
 parallel_test_workers: 8