diff --git a/.coveragerc b/.coveragerc
index b178b09..dd39c85 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1,3 +1,19 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright 2020 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
+#
+#     https://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.
+
 # Generated by synthtool. DO NOT EDIT!
 [run]
 branch = True
diff --git a/.flake8 b/.flake8
index 0268ecc..20fe9bd 100644
--- a/.flake8
+++ b/.flake8
@@ -1,3 +1,19 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright 2020 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
+#
+#     https://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.
+
 # Generated by synthtool. DO NOT EDIT!
 [flake8]
 ignore = E203, E266, E501, W503
diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
index 70070b0..a6a8e51 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -11,8 +11,7 @@ Thanks for stopping by to let us know something could be better!
 Please run down the following list and make sure you've tried the usual "quick fixes":
 
   - Search the issues already opened: https://github.com/googleapis/python-billingbudgets/issues
-  - Search the issues on our "catch-all" repository: https://github.com/googleapis/google-cloud-python
-  - Search StackOverflow: http://stackoverflow.com/questions/tagged/google-cloud-platform+python
+  - Search StackOverflow: https://stackoverflow.com/questions/tagged/google-cloud-platform+python
 
 If you are still having issues, please be sure to include as much information as possible:
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf5005c..c6d20d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,11 @@
 # Changelog
+## [0.4.0](https://www.github.com/googleapis/python-billingbudgets/compare/v0.3.0...v0.4.0) (2020-05-18)
+
+
+### Features
+
+* refreshes beta release ([#28](https://www.github.com/googleapis/python-billingbudgets/issues/28)) ([49b6e2a](https://www.github.com/googleapis/python-billingbudgets/commit/49b6e2a22a207e2a0c8dfc34dce7df7891003156))
+
 ## [0.3.0](https://www.github.com/googleapis/python-billingbudgets/compare/v0.2.0...v0.3.0) (2020-03-18)
 
 
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 07a544a..216cfb5 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -22,7 +22,7 @@ In order to add a feature:
   documentation.
 
 - The feature must work fully on the following CPython versions:  2.7,
-  3.5, 3.6, and 3.7 on both UNIX and Windows.
+  3.5, 3.6, 3.7 and 3.8 on both UNIX and Windows.
 
 - The feature must not add unnecessary dependencies (where
   "unnecessary" is of course subjective, but new dependencies should
@@ -214,26 +214,18 @@ We support:
 -  `Python 3.5`_
 -  `Python 3.6`_
 -  `Python 3.7`_
+-  `Python 3.8`_
 
 .. _Python 3.5: https://docs.python.org/3.5/
 .. _Python 3.6: https://docs.python.org/3.6/
 .. _Python 3.7: https://docs.python.org/3.7/
+.. _Python 3.8: https://docs.python.org/3.8/
 
 
 Supported versions can be found in our ``noxfile.py`` `config`_.
 
 .. _config: https://github.com/googleapis/python-billingbudgets/blob/master/noxfile.py
 
-We explicitly decided not to support `Python 2.5`_ due to `decreased usage`_
-and lack of continuous integration `support`_.
-
-.. _Python 2.5: https://docs.python.org/2.5/
-.. _decreased usage: https://caremad.io/2013/10/a-look-at-pypi-downloads/
-.. _support: https://blog.travis-ci.com/2013-11-18-upcoming-build-environment-updates/
-
-We have `dropped 2.6`_ as a supported version as well since Python 2.6 is no
-longer supported by the core development team.
-
 Python 2.7 support is deprecated. All code changes should maintain Python 2.7 compatibility until January 1, 2020.
 
 We also explicitly decided to support Python 3 beginning with version
@@ -247,7 +239,6 @@ We also explicitly decided to support Python 3 beginning with version
 .. _prominent: https://docs.djangoproject.com/en/1.9/faq/install/#what-python-version-can-i-use-with-django
 .. _projects: http://flask.pocoo.org/docs/0.10/python3/
 .. _Unicode literal support: https://www.python.org/dev/peps/pep-0414/
-.. _dropped 2.6: https://github.com/googleapis/google-cloud-python/issues/995
 
 **********
 Versioning
diff --git a/MANIFEST.in b/MANIFEST.in
index cd011be..68855ab 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,19 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright 2020 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
+#
+#     https://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.
+
 # Generated by synthtool. DO NOT EDIT!
 include README.rst LICENSE
 recursive-include google *.json *.proto
diff --git a/README.rst b/README.rst
index 615b01e..e0abd4d 100644
--- a/README.rst
+++ b/README.rst
@@ -12,12 +12,12 @@ plan.
 
 .. |beta| image:: https://img.shields.io/badge/support-beta-orange.svg
    :target: https://github.com/googleapis/google-cloud-python/blob/master/README.rst#beta-support
-.. |pypi| image:: https://img.shields.io/pypi/v/google-cloud-billingbudgets.svg
-   :target: https://pypi.org/project/google-cloud-billingbudgets
-.. |versions| image:: https://img.shields.io/pypi/pyversions/google-cloud-billingbudgets.svg
-   :target: https://pypi.org/project/google-cloud-billingbudgets/
+.. |pypi| image:: https://img.shields.io/pypi/v/google-cloud-billing-budgets.svg
+   :target: https://pypi.org/project/google-cloud-billing-budgets
+.. |versions| image:: https://img.shields.io/pypi/pyversions/google-cloud-billing-budgets.svg
+   :target: https://pypi.org/project/google-cloud-billing-budgets/
 .. _Cloud Billing Budget API: https://cloud.google.com/billing/docs/how-to/budget-api-overview
-.. _Client Library Documentation: https://googleapis.dev/python/billingbudgets/latest
+.. _Client Library Documentation: https://googleapis.dev/python/billing-budgets/latest
 .. _Product Documentation:  https://cloud.google.com/billing/docs/how-to/budget-api-overview
 
 Quick Start
diff --git a/noxfile.py b/noxfile.py
index a8a431b..19d72cf 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -110,8 +110,7 @@ def system(session):
 
     # Install all test dependencies, then install this package into the
     # virtualenv's dist-packages.
-    session.install("mock", "pytest")
-
+    session.install("mock", "pytest", "google-cloud-testutils")
     session.install("-e", ".")
 
     # Run py.test against the system tests.
@@ -139,7 +138,7 @@ def docs(session):
     """Build the docs for this library."""
 
     session.install("-e", ".")
-    session.install("sphinx", "alabaster", "recommonmark")
+    session.install("sphinx<3.0.0", "alabaster", "recommonmark")
 
     shutil.rmtree(os.path.join("docs", "_build"), ignore_errors=True)
     session.run(
diff --git a/setup.cfg b/setup.cfg
index 3bd5555..c3a2b39 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,3 +1,19 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright 2020 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
+#
+#     https://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.
+
 # Generated by synthtool. DO NOT EDIT!
 [bdist_wheel]
 universal = 1
diff --git a/setup.py b/setup.py
index 5fb9c82..215796a 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 name = "google-cloud-billing-budgets"
 description = "Cloud Billing Budget API API client library"
-version = "0.3.0"
+version = "0.4.0"
 release_status = "Development Status :: 4 - Beta"
 dependencies = [
     "google-api-core[grpc] >= 1.14.0, < 2.0.0dev",
@@ -53,7 +53,7 @@
     author="Google LLC",
     author_email="googleapis-packages@google.com",
     license="Apache 2.0",
-    url="https://github.com/googleapis/python-bilingbudgets",
+    url="https://github.com/googleapis/python-billingbudgets",
     classifiers=[
         release_status,
         "Intended Audience :: Developers",
diff --git a/synth.metadata b/synth.metadata
index 6704f89..29c840e 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -1,27 +1,32 @@
 {
-  "updateTime": "2020-03-03T13:14:56.642891Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.47.0",
-        "dockerImage": "googleapis/artman@sha256:b3e50d6b8de03920b9f065bbc3d210e2ca93a043446f1fa16cdf567393c09678"
+        "version": "2.0.0",
+        "dockerImage": "googleapis/artman@sha256:b3b47805231a305d0f40c4bf069df20f6a2635574e6d4259fac651d3f9f6e098"
+      }
+    },
+    {
+      "git": {
+        "name": ".",
+        "remote": "git@github.com:googleapis/python-billingbudgets",
+        "sha": "b2a213ec498e49c764466659728911816f534b65"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "4a180bfff8a21645b3a935c2756e8d6ab18a74e0",
-        "internalRef": "298484782",
-        "log": "4a180bfff8a21645b3a935c2756e8d6ab18a74e0\nautoml/v1beta1 publish proto updates\n\nPiperOrigin-RevId: 298484782\n\n6de6e938b7df1cd62396563a067334abeedb9676\nchore: use the latest gapic-generator and protoc-java-resource-name-plugin in Bazel workspace.\n\nPiperOrigin-RevId: 298474513\n\n244ab2b83a82076a1fa7be63b7e0671af73f5c02\nAdds service config definition for bigqueryreservation v1\n\nPiperOrigin-RevId: 298455048\n\n83c6f84035ee0f80eaa44d8b688a010461cc4080\nUpdate google/api/auth.proto to make AuthProvider to have JwtLocation\n\nPiperOrigin-RevId: 297918498\n\ne9e90a787703ec5d388902e2cb796aaed3a385b4\nDialogflow weekly v2/v2beta1 library update:\n  - adding get validation result\n  - adding field mask override control for output audio config\nImportant updates are also posted at:\nhttps://cloud.google.com/dialogflow/docs/release-notes\n\nPiperOrigin-RevId: 297671458\n\n1a2b05cc3541a5f7714529c665aecc3ea042c646\nAdding .yaml and .json config files.\n\nPiperOrigin-RevId: 297570622\n\ndfe1cf7be44dee31d78f78e485d8c95430981d6e\nPublish `QueryOptions` proto.\n\nIntroduced a `query_options` input in `ExecuteSqlRequest`.\n\nPiperOrigin-RevId: 297497710\n\ndafc905f71e5d46f500b41ed715aad585be062c3\npubsub: revert pull init_rpc_timeout & max_rpc_timeout back to 25 seconds and reset multiplier to 1.0\n\nPiperOrigin-RevId: 297486523\n\nf077632ba7fee588922d9e8717ee272039be126d\nfirestore: add update_transform\n\nPiperOrigin-RevId: 297405063\n\n0aba1900ffef672ec5f0da677cf590ee5686e13b\ncluster: use square brace for cross-reference\n\nPiperOrigin-RevId: 297204568\n\n5dac2da18f6325cbaed54603c43f0667ecd50247\nRestore retry params in gapic config because securitycenter has non-standard default retry params.\nRestore a few retry codes for some idempotent methods.\n\nPiperOrigin-RevId: 297196720\n\n1eb61455530252bba8b2c8d4bc9832960e5a56f6\npubsub: v1 replace IAM HTTP rules\n\nPiperOrigin-RevId: 297188590\n\n80b2d25f8d43d9d47024ff06ead7f7166548a7ba\nDialogflow weekly v2/v2beta1 library update:\n  - updates to mega agent api\n  - adding field mask override control for output audio config\nImportant updates are also posted at:\nhttps://cloud.google.com/dialogflow/docs/release-notes\n\nPiperOrigin-RevId: 297187629\n\n"
+        "sha": "ee9e8e4e67f06aba881392a1a2956fbe7a42d216",
+        "internalRef": "309481123"
       }
     },
     {
-      "template": {
-        "name": "python_library",
-        "origin": "synthtool.gcp",
-        "version": "2020.2.4"
+      "git": {
+        "name": "synthtool",
+        "remote": "https://github.com/googleapis/synthtool.git",
+        "sha": "04cb397eb7590ea1e6c10a39fca3d8fe0fb3d256"
       }
     }
   ],
diff --git a/synth.py b/synth.py
index db311a3..5cadf15 100644
--- a/synth.py
+++ b/synth.py
@@ -20,16 +20,16 @@
 
 logging.basicConfig(level=logging.DEBUG)
 
-gapic = gcp.GAPICGenerator()
+gapic = gcp.GAPICBazel()
 common = gcp.CommonTemplates()
 
 # ----------------------------------------------------------------------------
 # Generate billing budgets GAPIC layer
 # ----------------------------------------------------------------------------
 library = gapic.py_library(
-    "billingbudgets",
-    "v1beta1",
-    config_path="/google/cloud/billing/budgets/artman_billingbudgets_v1beta1.yaml",
+    service="billing_budgets",
+    version="v1beta1",
+    bazel_target="//google/cloud/billing/budgets/v1beta1:billing-budgets-v1beta1-py",
     include_protos=True,
 )
 
@@ -38,15 +38,9 @@
     "setup.py",
     "README.rst",
     library / "docs/index.rst",
-    library
-    / "google/cloud/billingbudgets_v1beta1/proto",  # proto files are copied to the wrong place
 ]
 
 s.move(library, excludes=excludes)
-s.move(
-    library / "google/cloud/billingbudgets_v1beta1/proto/*.proto",
-    "google/cloud/billing_budgets_v1beta1/proto",
-)
 
 # Fix namespace
 s.replace(