diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..30c3973
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,11 @@
+# Code owners file.
+# This file controls who is tagged for review for any given pull request.
+#
+# For syntax help see:
+# https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax
+
+# The @googleapis/yoshi-python is the default owner for changes in this repo
+*               @googleapis/yoshi-python
+
+# The python-samples-reviewers team is the default owner for samples changes
+/samples/  @googleapis/python-samples-owners
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5646eff..b3e177b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,18 @@
 
 [1]: https://pypi.org/project/google-cloud-core/#history
 
+### [1.4.2](https://www.github.com/googleapis/python-cloud-core/compare/v1.4.1...v1.4.2) (2020-09-29)
+
+
+### Bug Fixes
+
+* handle query_params tuples in JSONConnection.build_api_url ([#34](https://www.github.com/googleapis/python-cloud-core/issues/34)) ([6a9adb3](https://www.github.com/googleapis/python-cloud-core/commit/6a9adb3dddd5f6d82032aba5efd673ea0641593c))
+
+
+### Performance Improvements
+
+* use prettyPrint=false by default ([#28](https://www.github.com/googleapis/python-cloud-core/issues/28)) ([c407b5d](https://www.github.com/googleapis/python-cloud-core/commit/c407b5d617c04affbdb4f444c188edffb25d4336))
+
 ### [1.4.1](https://www.github.com/googleapis/python-cloud-core/compare/v1.4.0...v1.4.1) (2020-08-06)
 
 
@@ -16,6 +28,33 @@
 
 * update docs build (via synth) ([#14](https://www.github.com/googleapis/python-cloud-core/issues/14)) ([f1a95ce](https://www.github.com/googleapis/python-cloud-core/commit/f1a95ce89c25f5297470299ca1ef7e1e05a9e99f))
 
+
+## 1.4.2rc2
+
+09-24-2020 09:29 PDT
+
+### Implementation Changes
+
+- fix: handle query_params tuples in JSONConnection.build_api_url ([#34](https://github.com/googleapis/python-cloud-core/pull/34))
+
+### Internal / Testing Changes
+
+- chore: add default CODEOWNERS ([#33](https://github.com/googleapis/python-cloud-core/pull/33))
+
+
+## 1.4.2rc1
+
+09-21-2020 14:45 PDT
+
+
+### Implementation Changes
+
+- perf: use prettyPrint=false by default ([#28](https://github.com/googleapis/python-cloud-core/pull/28))
+
+### Internal / Testing Changes
+
+- test: fix mock credentials to allow for quota projects ([#29](https://github.com/googleapis/python-cloud-core/pull/29))
+
 ## [1.4.0](https://www.github.com/googleapis/python-cloud-core/compare/v1.3.0...v1.4.0) (2020-08-04)
 
 
@@ -83,7 +122,7 @@
 
 06/11/2019 15:19 PDT
 
-### Internal Changes 
+### Internal Changes
 - Prevent requests from hanging on SSL handshake issue by adding a max timeout of 5 minutes. ([#8207](https://github.com/googleapis/google-cloud-python/pull/8207))
 
 ## 1.0.1
diff --git a/google/cloud/_http.py b/google/cloud/_http.py
index 12315c2..74539a5 100644
--- a/google/cloud/_http.py
+++ b/google/cloud/_http.py
@@ -14,11 +14,13 @@
 
 """Shared implementation of connections to API servers."""
 
+import collections
 import json
 import platform
 import warnings
 
 from pkg_resources import get_distribution
+from six.moves import collections_abc
 from six.moves.urllib.parse import urlencode
 
 from google.api_core.client_info import ClientInfo
@@ -211,8 +213,18 @@ def build_api_url(
         )
 
         query_params = query_params or {}
-        if query_params:
-            url += "?" + urlencode(query_params, doseq=True)
+
+        if isinstance(query_params, collections_abc.Mapping):
+            query_params = query_params.copy()
+        else:
+            query_params_dict = collections.defaultdict(list)
+            for key, value in query_params:
+                query_params_dict[key].append(value)
+            query_params = query_params_dict
+
+        query_params.setdefault("prettyPrint", "false")
+
+        url += "?" + urlencode(query_params, doseq=True)
 
         return url
 
diff --git a/setup.py b/setup.py
index 6816343..17e6a30 100644
--- a/setup.py
+++ b/setup.py
@@ -22,12 +22,12 @@
 
 name = "google-cloud-core"
 description = "Google Cloud API client core library"
-version = "1.4.1"
+version = "1.4.2"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'
 # 'Development Status :: 5 - Production/Stable'
-release_status = "Development Status :: 4 - Beta"
+release_status = "Development Status :: 5 - Production/Stable"
 dependencies = ["google-api-core >= 1.19.0, < 2.0.0dev"]
 extras = {"grpc": "grpcio >= 1.8.2, < 2.0dev"}
 
diff --git a/tests/unit/test__http.py b/tests/unit/test__http.py
index 145e302..069ddc0 100644
--- a/tests/unit/test__http.py
+++ b/tests/unit/test__http.py
@@ -184,9 +184,16 @@ def test_build_api_url_no_extra_query_params(self):
         client = object()
         conn = self._make_mock_one(client)
         # Intended to emulate self.mock_template
-        URI = "/".join([conn.API_BASE_URL, "mock", conn.API_VERSION, "foo"])
+        URI = "/".join([conn.API_BASE_URL, "mock", conn.API_VERSION, "foo?prettyPrint=false"])
         self.assertEqual(conn.build_api_url("/foo"), URI)
 
+    def test_build_api_url_w_pretty_print_query_params(self):
+        client = object()
+        conn = self._make_mock_one(client)
+        uri = conn.build_api_url("/foo", {"prettyPrint": "true"})
+        URI = "/".join([conn.API_BASE_URL, "mock", conn.API_VERSION, "foo?prettyPrint=true"])
+        self.assertEqual(uri, URI)
+
     def test_build_api_url_w_extra_query_params(self):
         from six.moves.urllib.parse import parse_qs
         from six.moves.urllib.parse import urlsplit
@@ -203,6 +210,25 @@ def test_build_api_url_w_extra_query_params(self):
         parms = dict(parse_qs(qs))
         self.assertEqual(parms["bar"], ["baz"])
         self.assertEqual(parms["qux"], ["quux", "corge"])
+        self.assertEqual(parms["prettyPrint"], ["false"])
+
+    def test_build_api_url_w_extra_query_params_tuples(self):
+        from six.moves.urllib.parse import parse_qs
+        from six.moves.urllib.parse import urlsplit
+
+        client = object()
+        conn = self._make_mock_one(client)
+        uri = conn.build_api_url("/foo", [("bar", "baz"), ("qux", "quux"), ("qux", "corge")])
+
+        scheme, netloc, path, qs, _ = urlsplit(uri)
+        self.assertEqual("%s://%s" % (scheme, netloc), conn.API_BASE_URL)
+        # Intended to emulate mock_template
+        PATH = "/".join(["", "mock", conn.API_VERSION, "foo"])
+        self.assertEqual(path, PATH)
+        parms = dict(parse_qs(qs))
+        self.assertEqual(parms["bar"], ["baz"])
+        self.assertEqual(parms["qux"], ["quux", "corge"])
+        self.assertEqual(parms["prettyPrint"], ["false"])
 
     def test__make_request_no_data_no_content_type_no_headers(self):
         from google.cloud._http import CLIENT_INFO_HEADER
@@ -319,7 +345,7 @@ def test_api_request_defaults(self):
             "User-Agent": conn.user_agent,
             CLIENT_INFO_HEADER: conn.user_agent,
         }
-        expected_url = "{base}/mock/{version}{path}".format(
+        expected_url = "{base}/mock/{version}{path}?prettyPrint=false".format(
             base=conn.API_BASE_URL, version=conn.API_VERSION, path=path
         )
         http.request.assert_called_once_with(
@@ -481,7 +507,7 @@ def test_api_request_w_timeout(self):
             "User-Agent": conn.user_agent,
             CLIENT_INFO_HEADER: conn.user_agent,
         }
-        expected_url = "{base}/mock/{version}{path}".format(
+        expected_url = "{base}/mock/{version}{path}?prettyPrint=false".format(
             base=conn.API_BASE_URL, version=conn.API_VERSION, path=path
         )
         http.request.assert_called_once_with(
diff --git a/tests/unit/test_client.py b/tests/unit/test_client.py
index 59e2ea0..5b22fe8 100644
--- a/tests/unit/test_client.py
+++ b/tests/unit/test_client.py
@@ -22,7 +22,7 @@
 def _make_credentials():
     import google.auth.credentials
 
-    return mock.Mock(spec=google.auth.credentials.Credentials)
+    return mock.Mock(spec=google.auth.credentials.CredentialsWithQuotaProject)
 
 
 class Test_ClientFactoryMixin(unittest.TestCase):