diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
index ee94722..7d98291 100644
--- a/.github/.OwlBot.lock.yaml
+++ b/.github/.OwlBot.lock.yaml
@@ -1,3 +1,3 @@
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:6e7328583be8edd3ba8f35311c76a1ecbc823010279ccb6ab46b7a76e25eafcc
+  digest: sha256:58f73ba196b5414782605236dd0712a73541b44ff2ff4d3a36ec41092dd6fa5b
diff --git a/.kokoro/samples/python3.10/common.cfg b/.kokoro/samples/python3.10/common.cfg
new file mode 100644
index 0000000..5f6d0e0
--- /dev/null
+++ b/.kokoro/samples/python3.10/common.cfg
@@ -0,0 +1,40 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+  }
+}
+
+# Specify which tests to run
+env_vars: {
+    key: "RUN_TESTS_SESSION"
+    value: "py-3.10"
+}
+
+# Declare build specific Cloud project.
+env_vars: {
+    key: "BUILD_SPECIFIC_GCLOUD_PROJECT"
+    value: "python-docs-samples-tests-310"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/python-bigquery-connection/.kokoro/test-samples.sh"
+}
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+    key: "TRAMPOLINE_IMAGE"
+    value: "gcr.io/cloud-devrel-kokoro-resources/python-samples-testing-docker"
+}
+
+# Download secrets for samples
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "python-bigquery-connection/.kokoro/trampoline_v2.sh"
\ No newline at end of file
diff --git a/.kokoro/samples/python3.10/continuous.cfg b/.kokoro/samples/python3.10/continuous.cfg
new file mode 100644
index 0000000..a1c8d97
--- /dev/null
+++ b/.kokoro/samples/python3.10/continuous.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
\ No newline at end of file
diff --git a/.kokoro/samples/python3.10/periodic-head.cfg b/.kokoro/samples/python3.10/periodic-head.cfg
new file mode 100644
index 0000000..8e2686c
--- /dev/null
+++ b/.kokoro/samples/python3.10/periodic-head.cfg
@@ -0,0 +1,11 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/python-bigquery-connection/.kokoro/test-samples-against-head.sh"
+}
diff --git a/.kokoro/samples/python3.10/periodic.cfg b/.kokoro/samples/python3.10/periodic.cfg
new file mode 100644
index 0000000..71cd1e5
--- /dev/null
+++ b/.kokoro/samples/python3.10/periodic.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "False"
+}
diff --git a/.kokoro/samples/python3.10/presubmit.cfg b/.kokoro/samples/python3.10/presubmit.cfg
new file mode 100644
index 0000000..a1c8d97
--- /dev/null
+++ b/.kokoro/samples/python3.10/presubmit.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "INSTALL_LIBRARY_FROM_SOURCE"
+    value: "True"
+}
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf21a0f..dbf4419 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.3.0](https://www.github.com/googleapis/python-bigquery-connection/compare/v1.2.3...v1.3.0) (2021-10-08)
+
+
+### Features
+
+* add context manager support in client ([#125](https://www.github.com/googleapis/python-bigquery-connection/issues/125)) ([bf9cc26](https://www.github.com/googleapis/python-bigquery-connection/commit/bf9cc268363a2a6e115b6af65ab6b50c05bbde28))
+
 ### [1.2.3](https://www.github.com/googleapis/python-bigquery-connection/compare/v1.2.2...v1.2.3) (2021-10-05)
 
 
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index fee1f58..1c35224 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:
-  3.6, 3.7, 3.8 and 3.9 on both UNIX and Windows.
+  3.6, 3.7, 3.8, 3.9 and 3.10 on both UNIX and Windows.
 
 - The feature must not add unnecessary dependencies (where
   "unnecessary" is of course subjective, but new dependencies should
@@ -72,7 +72,7 @@ We use `nox <https://nox.readthedocs.io/en/latest/>`__ to instrument our tests.
 
 - To run a single unit test::
 
-    $ nox -s unit-3.9 -- -k <name of test>
+    $ nox -s unit-3.10 -- -k <name of test>
 
 
   .. note::
@@ -225,11 +225,13 @@ We support:
 -  `Python 3.7`_
 -  `Python 3.8`_
 -  `Python 3.9`_
+-  `Python 3.10`_
 
 .. _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/
 .. _Python 3.9: https://docs.python.org/3.9/
+.. _Python 3.10: https://docs.python.org/3.10/
 
 
 Supported versions can be found in our ``noxfile.py`` `config`_.
diff --git a/google/cloud/bigquery_connection_v1/services/connection_service/async_client.py b/google/cloud/bigquery_connection_v1/services/connection_service/async_client.py
index 6a33f05..b5b09f5 100644
--- a/google/cloud/bigquery_connection_v1/services/connection_service/async_client.py
+++ b/google/cloud/bigquery_connection_v1/services/connection_service/async_client.py
@@ -943,6 +943,12 @@ async def test_iam_permissions(
         # Done; return the response.
         return response
 
+    async def __aenter__(self):
+        return self
+
+    async def __aexit__(self, exc_type, exc, tb):
+        await self.transport.close()
+
 
 try:
     DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
diff --git a/google/cloud/bigquery_connection_v1/services/connection_service/client.py b/google/cloud/bigquery_connection_v1/services/connection_service/client.py
index 61dec54..fa3473c 100644
--- a/google/cloud/bigquery_connection_v1/services/connection_service/client.py
+++ b/google/cloud/bigquery_connection_v1/services/connection_service/client.py
@@ -350,10 +350,7 @@ def __init__(
                 client_cert_source_for_mtls=client_cert_source_func,
                 quota_project_id=client_options.quota_project_id,
                 client_info=client_info,
-                always_use_jwt_access=(
-                    Transport == type(self).get_transport_class("grpc")
-                    or Transport == type(self).get_transport_class("grpc_asyncio")
-                ),
+                always_use_jwt_access=True,
             )
 
     def create_connection(
@@ -1101,6 +1098,19 @@ def test_iam_permissions(
         # Done; return the response.
         return response
 
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type, value, traceback):
+        """Releases underlying transport's resources.
+
+        .. warning::
+            ONLY use as a context manager if the transport is NOT shared
+            with other clients! Exiting the with block will CLOSE the transport
+            and may cause errors in other clients!
+        """
+        self.transport.close()
+
 
 try:
     DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
diff --git a/google/cloud/bigquery_connection_v1/services/connection_service/transports/base.py b/google/cloud/bigquery_connection_v1/services/connection_service/transports/base.py
index 7f5c9be..2bd9d67 100644
--- a/google/cloud/bigquery_connection_v1/services/connection_service/transports/base.py
+++ b/google/cloud/bigquery_connection_v1/services/connection_service/transports/base.py
@@ -225,6 +225,15 @@ def _prep_wrapped_messages(self, client_info):
             ),
         }
 
+    def close(self):
+        """Closes resources associated with the transport.
+
+       .. warning::
+            Only call this method if the transport is NOT shared
+            with other clients - this may cause errors in other clients!
+        """
+        raise NotImplementedError()
+
     @property
     def create_connection(
         self,
diff --git a/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc.py b/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc.py
index 1724f74..53f8b54 100644
--- a/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc.py
+++ b/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc.py
@@ -461,5 +461,8 @@ def test_iam_permissions(
             )
         return self._stubs["test_iam_permissions"]
 
+    def close(self):
+        self.grpc_channel.close()
+
 
 __all__ = ("ConnectionServiceGrpcTransport",)
diff --git a/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc_asyncio.py b/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc_asyncio.py
index 20d3be2..d0e8f8d 100644
--- a/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc_asyncio.py
+++ b/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc_asyncio.py
@@ -465,5 +465,8 @@ def test_iam_permissions(
             )
         return self._stubs["test_iam_permissions"]
 
+    def close(self):
+        return self.grpc_channel.close()
+
 
 __all__ = ("ConnectionServiceGrpcAsyncIOTransport",)
diff --git a/google/cloud/bigquery_connection_v1/types/connection.py b/google/cloud/bigquery_connection_v1/types/connection.py
index 12a3c85..92162ee 100644
--- a/google/cloud/bigquery_connection_v1/types/connection.py
+++ b/google/cloud/bigquery_connection_v1/types/connection.py
@@ -134,6 +134,7 @@ class UpdateConnectionRequest(proto.Message):
 
 class DeleteConnectionRequest(proto.Message):
     r"""The request for [ConnectionService.DeleteConnectionRequest][].
+
     Attributes:
         name (str):
             Required. Name of the deleted connection, for example:
@@ -192,6 +193,7 @@ class Connection(proto.Message):
 
 class CloudSqlProperties(proto.Message):
     r"""Connection properties specific to the Cloud SQL.
+
     Attributes:
         instance_id (str):
             Cloud SQL instance ID in the form
@@ -218,6 +220,7 @@ class DatabaseType(proto.Enum):
 
 class CloudSqlCredential(proto.Message):
     r"""Credential info for the Cloud SQL.
+
     Attributes:
         username (str):
             The username for the credential.
@@ -231,6 +234,7 @@ class CloudSqlCredential(proto.Message):
 
 class CloudSpannerProperties(proto.Message):
     r"""Connection properties specific to Cloud Spanner.
+
     Attributes:
         database (str):
             Cloud Spanner database in the form
@@ -246,6 +250,7 @@ class CloudSpannerProperties(proto.Message):
 
 class AwsProperties(proto.Message):
     r"""Connection properties specific to Amazon Web Services (AWS).
+
     Attributes:
         cross_account_role (google.cloud.bigquery_connection_v1.types.AwsCrossAccountRole):
             Authentication using Google owned AWS IAM
diff --git a/noxfile.py b/noxfile.py
index 93ea9b1..f885c68 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -29,7 +29,7 @@
 
 DEFAULT_PYTHON_VERSION = "3.8"
 SYSTEM_TEST_PYTHON_VERSIONS = ["3.8"]
-UNIT_TEST_PYTHON_VERSIONS = ["3.6", "3.7", "3.8", "3.9"]
+UNIT_TEST_PYTHON_VERSIONS = ["3.6", "3.7", "3.8", "3.9", "3.10"]
 
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
 
diff --git a/setup.py b/setup.py
index e8a4921..d41dadc 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
 import os
 import setuptools  # type: ignore
 
-version = "1.2.3"
+version = "1.3.0"
 
 package_root = os.path.abspath(os.path.dirname(__file__))
 
diff --git a/tests/unit/gapic/bigquery_connection_v1/test_connection_service.py b/tests/unit/gapic/bigquery_connection_v1/test_connection_service.py
index a2b8965..6edc88e 100644
--- a/tests/unit/gapic/bigquery_connection_v1/test_connection_service.py
+++ b/tests/unit/gapic/bigquery_connection_v1/test_connection_service.py
@@ -29,6 +29,7 @@
 from google.api_core import gapic_v1
 from google.api_core import grpc_helpers
 from google.api_core import grpc_helpers_async
+from google.api_core import path_template
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
 from google.cloud.bigquery_connection_v1.services.connection_service import (
@@ -2608,6 +2609,9 @@ def test_connection_service_base_transport():
         with pytest.raises(NotImplementedError):
             getattr(transport, method)(request=object())
 
+    with pytest.raises(NotImplementedError):
+        transport.close()
+
 
 @requires_google_auth_gte_1_25_0
 def test_connection_service_base_transport_with_credentials_file():
@@ -3111,3 +3115,49 @@ def test_client_withDEFAULT_CLIENT_INFO():
             credentials=ga_credentials.AnonymousCredentials(), client_info=client_info,
         )
         prep.assert_called_once_with(client_info)
+
+
+@pytest.mark.asyncio
+async def test_transport_close_async():
+    client = ConnectionServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="grpc_asyncio",
+    )
+    with mock.patch.object(
+        type(getattr(client.transport, "grpc_channel")), "close"
+    ) as close:
+        async with client:
+            close.assert_not_called()
+        close.assert_called_once()
+
+
+def test_transport_close():
+    transports = {
+        "grpc": "_grpc_channel",
+    }
+
+    for transport, close_name in transports.items():
+        client = ConnectionServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(), transport=transport
+        )
+        with mock.patch.object(
+            type(getattr(client.transport, close_name)), "close"
+        ) as close:
+            with client:
+                close.assert_not_called()
+            close.assert_called_once()
+
+
+def test_client_ctx():
+    transports = [
+        "grpc",
+    ]
+    for transport in transports:
+        client = ConnectionServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(), transport=transport
+        )
+        # Test client calls underlying transport.
+        with mock.patch.object(type(client.transport), "close") as close:
+            close.assert_not_called()
+            with client:
+                pass
+            close.assert_called()