diff --git a/docs/index.rst b/docs/index.rst
index 21f3a35..1a892ac 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -2,25 +2,37 @@
 
 .. include:: multiprocessing.rst
 
-Api Reference
+This package includes clients for multiple versions of Cloud Billing Budget.
+By default, you will get version ``budgets_v1``.
+
+
+API Reference
 -------------
 .. toctree::
     :maxdepth: 2
 
     budgets_v1/services
     budgets_v1/types
+
+API Reference
+-------------
+.. toctree::
+    :maxdepth: 2
+
     budgets_v1beta1/services
     budgets_v1beta1/types
 
+
 Migration Guide
 ---------------
 
-See the guide below for instructions on migrating to the 2.x release of this library.
+See the guide below for instructions on migrating to the latest version.
 
 .. toctree::
     :maxdepth: 2
 
-    UPGRADING
+    UPGRADING
+
 
 Changelog
 ---------
@@ -28,6 +40,6 @@ Changelog
 For a list of all ``google-cloud-billing-budgets`` releases:
 
 .. toctree::
-   :maxdepth: 2
+    :maxdepth: 2
 
-   changelog
+    changelog
diff --git a/noxfile.py b/noxfile.py
index f041f1f..2a2001c 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -175,7 +175,7 @@ def cover(session):
     test runs (not system test runs), and then erases coverage data.
     """
     session.install("coverage", "pytest-cov")
-    session.run("coverage", "report", "--show-missing", "--fail-under=98")
+    session.run("coverage", "report", "--show-missing", "--fail-under=100")
 
     session.run("coverage", "erase")
 
diff --git a/owlbot.py b/owlbot.py
deleted file mode 100644
index f2f544c..0000000
--- a/owlbot.py
+++ /dev/null
@@ -1,113 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-"""This script is used to synthesize generated parts of this library."""
-
-import synthtool as s
-import synthtool.gcp as gcp
-import logging
-from synthtool.languages import python
-
-logging.basicConfig(level=logging.DEBUG)
-
-common = gcp.CommonTemplates()
-
-default_version = "v1"
-
-for library in s.get_staging_dirs(default_version):
-    excludes = [
-        "nox.py",
-        "setup.py",
-        "README.rst",
-        "docs/index.rst",
-    ]
-
-    s.move(library, excludes=excludes)
-
-s.remove_staging_dirs()
-
-# ----------------------------------------------------------------------------
-# Add templated files
-# ----------------------------------------------------------------------------
-templated_files = common.py_library(
-    samples=False,  # set to True only if there are samples
-    microgenerator=True,
-    cov_level=98,
-)
-s.move(templated_files, excludes=[".coveragerc"])  # microgenerator has a good .coveragerc file
-
-python.py_samples(skip_readmes=True)
-
-# Update the namespace in noxfile.py
-s.replace(
-    "noxfile.py",
-    "google.cloud.billingbudgets",
-    "google.cloud.billing.budgets"
-)
-
-# Remove the replacements below once https://github.com/googleapis/synthtool/pull/1188 is merged
-
-# Update googleapis/repo-automation-bots repo to main in .kokoro/*.sh files
-s.replace(".kokoro/*.sh", "repo-automation-bots/tree/master", "repo-automation-bots/tree/main")
-
-# Customize CONTRIBUTING.rst to replace master with main
-s.replace(
-    "CONTRIBUTING.rst",
-    "fetch and merge changes from upstream into master",
-    "fetch and merge changes from upstream into main",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    "git merge upstream/master",
-    "git merge upstream/main",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    """export GOOGLE_CLOUD_TESTING_BRANCH=\"master\"""",
-    """export GOOGLE_CLOUD_TESTING_BRANCH=\"main\"""",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    "remote \(``master``\)",
-    "remote (``main``)",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    "blob/master/CONTRIBUTING.rst",
-    "blob/main/CONTRIBUTING.rst",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    "blob/master/noxfile.py",
-    "blob/main/noxfile.py",
-)
-
-s.replace(
-    "docs/conf.py",
-    "master_doc",
-    "root_doc",
-)
-
-s.replace(
-    "docs/conf.py",
-    "# The master toctree document.",
-    "# The root toctree document.",
-)
-
-s.shell.run(["nox", "-s", "blacken"], hide_output=False)