diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 7de9824d..264f7ea3 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.25.0"
+  ".": "2.26.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 38ac5147..7a5e8ed5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,22 @@
 
 [1]: https://pypi.org/project/google-cloud-container/#history
 
+## [2.26.0](https://github.com/googleapis/python-container/compare/v2.25.0...v2.26.0) (2023-07-04)
+
+
+### Features
+
+* **v1beta1:** Add `InsecureKubeletReadonlyPortEnabled` in `NodeKubeletConfig` and `AutoProvisioningNodePoolDefaults` ([be6b0ab](https://github.com/googleapis/python-container/commit/be6b0ab88931a3c6a64cc92b8b0dbd33b82be255))
+* **v1beta1:** Add `KUBE_DNS` option to `DNSConfig.cluster_dns` ([be6b0ab](https://github.com/googleapis/python-container/commit/be6b0ab88931a3c6a64cc92b8b0dbd33b82be255))
+* **v1beta1:** Add a Pod IP Utilization API ([be6b0ab](https://github.com/googleapis/python-container/commit/be6b0ab88931a3c6a64cc92b8b0dbd33b82be255))
+* **v1beta1:** Add Tier 1 cluster-level API network_performance_config ([be6b0ab](https://github.com/googleapis/python-container/commit/be6b0ab88931a3c6a64cc92b8b0dbd33b82be255))
+* **v1beta1:** Publicize tpu topology ([be6b0ab](https://github.com/googleapis/python-container/commit/be6b0ab88931a3c6a64cc92b8b0dbd33b82be255))
+
+
+### Bug Fixes
+
+* Add async context manager return types ([#385](https://github.com/googleapis/python-container/issues/385)) ([074edd4](https://github.com/googleapis/python-container/commit/074edd4c4f8cd10d8cd2afa5d8fb09f1c951c292))
+
 ## [2.25.0](https://github.com/googleapis/python-container/compare/v2.24.0...v2.25.0) (2023-06-29)
 
 
diff --git a/google/cloud/container/gapic_version.py b/google/cloud/container/gapic_version.py
index e5fa8f60..d56eed5c 100644
--- a/google/cloud/container/gapic_version.py
+++ b/google/cloud/container/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.25.0"  # {x-release-please-version}
+__version__ = "2.26.0"  # {x-release-please-version}
diff --git a/google/cloud/container_v1/gapic_version.py b/google/cloud/container_v1/gapic_version.py
index e5fa8f60..d56eed5c 100644
--- a/google/cloud/container_v1/gapic_version.py
+++ b/google/cloud/container_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.25.0"  # {x-release-please-version}
+__version__ = "2.26.0"  # {x-release-please-version}
diff --git a/google/cloud/container_v1/services/cluster_manager/async_client.py b/google/cloud/container_v1/services/cluster_manager/async_client.py
index dc642563..9d441ec9 100644
--- a/google/cloud/container_v1/services/cluster_manager/async_client.py
+++ b/google/cloud/container_v1/services/cluster_manager/async_client.py
@@ -4697,7 +4697,7 @@ async def sample_check_autopilot_compatibility():
         # Done; return the response.
         return response
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "ClusterManagerAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):
diff --git a/google/cloud/container_v1beta1/__init__.py b/google/cloud/container_v1beta1/__init__.py
index cbafeec8..2db965bb 100644
--- a/google/cloud/container_v1beta1/__init__.py
+++ b/google/cloud/container_v1beta1/__init__.py
@@ -142,6 +142,7 @@
     PrivateClusterMasterGlobalAccessConfig,
     PrivateIPv6GoogleAccess,
     ProtectConfig,
+    RangeInfo,
     RecurringTimeWindow,
     ReleaseChannel,
     ReservationAffinity,
@@ -319,6 +320,7 @@
     "PrivateClusterMasterGlobalAccessConfig",
     "PrivateIPv6GoogleAccess",
     "ProtectConfig",
+    "RangeInfo",
     "RecurringTimeWindow",
     "ReleaseChannel",
     "ReservationAffinity",
diff --git a/google/cloud/container_v1beta1/gapic_version.py b/google/cloud/container_v1beta1/gapic_version.py
index e5fa8f60..d56eed5c 100644
--- a/google/cloud/container_v1beta1/gapic_version.py
+++ b/google/cloud/container_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.25.0"  # {x-release-please-version}
+__version__ = "2.26.0"  # {x-release-please-version}
diff --git a/google/cloud/container_v1beta1/services/cluster_manager/async_client.py b/google/cloud/container_v1beta1/services/cluster_manager/async_client.py
index 54d77f71..e23bce02 100644
--- a/google/cloud/container_v1beta1/services/cluster_manager/async_client.py
+++ b/google/cloud/container_v1beta1/services/cluster_manager/async_client.py
@@ -4884,7 +4884,7 @@ async def sample_list_locations():
         # Done; return the response.
         return response
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "ClusterManagerAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):
diff --git a/google/cloud/container_v1beta1/types/__init__.py b/google/cloud/container_v1beta1/types/__init__.py
index 6b45a128..a3ccb78c 100644
--- a/google/cloud/container_v1beta1/types/__init__.py
+++ b/google/cloud/container_v1beta1/types/__init__.py
@@ -136,6 +136,7 @@
     PrivateClusterMasterGlobalAccessConfig,
     PrivateIPv6GoogleAccess,
     ProtectConfig,
+    RangeInfo,
     RecurringTimeWindow,
     ReleaseChannel,
     ReservationAffinity,
@@ -308,6 +309,7 @@
     "PrivateClusterConfig",
     "PrivateClusterMasterGlobalAccessConfig",
     "ProtectConfig",
+    "RangeInfo",
     "RecurringTimeWindow",
     "ReleaseChannel",
     "ReservationAffinity",
diff --git a/google/cloud/container_v1beta1/types/cluster_service.py b/google/cloud/container_v1beta1/types/cluster_service.py
index eacc7c64..a8baa20f 100644
--- a/google/cloud/container_v1beta1/types/cluster_service.py
+++ b/google/cloud/container_v1beta1/types/cluster_service.py
@@ -89,6 +89,7 @@
         "NodePoolAutoConfig",
         "ClusterUpdate",
         "AdditionalPodRangesConfig",
+        "RangeInfo",
         "Operation",
         "OperationProgress",
         "CreateClusterRequest",
@@ -391,6 +392,8 @@ class OSVersion(proto.Enum):
 class NodeKubeletConfig(proto.Message):
     r"""Node kubelet configs.
 
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
     Attributes:
         cpu_manager_policy (str):
             Control the CPU management policy on the node. See
@@ -431,6 +434,10 @@ class NodeKubeletConfig(proto.Message):
             Controls the maximum number of processes allowed
             to run in a pod. The value must be greater than
             or equal to 1024 and less than 4194304.
+        insecure_kubelet_readonly_port_enabled (bool):
+            Enable or disable Kubelet read only port.
+
+            This field is a member of `oneof`_ ``_insecure_kubelet_readonly_port_enabled``.
     """
 
     cpu_manager_policy: str = proto.Field(
@@ -450,6 +457,11 @@ class NodeKubeletConfig(proto.Message):
         proto.INT64,
         number=4,
     )
+    insecure_kubelet_readonly_port_enabled: bool = proto.Field(
+        proto.BOOL,
+        number=7,
+        optional=True,
+    )
 
 
 class NodeConfig(proto.Message):
@@ -571,7 +583,7 @@ class NodeConfig(proto.Message):
             Whether the nodes are created as preemptible
             VM instances. See:
             https://cloud.google.com/compute/docs/instances/preemptible
-            for more inforamtion about preemptible VM
+            for more information about preemptible VM
             instances.
         accelerators (MutableSequence[google.cloud.container_v1beta1.types.AcceleratorConfig]):
             A list of hardware accelerators to be
@@ -936,6 +948,10 @@ class NodeNetworkConfig(proto.Message):
             off to next power of 2) Example: max_pods_per_node of 30
             will result in 32 IPs (/27) when overprovisioning is
             disabled.
+        pod_ipv4_range_utilization (float):
+            Output only. [Output only] The utilization of the IPv4 range
+            for pod. The ratio is Usage/[Total number of IPs in the
+            secondary range], Usage=numNodes\ *numZones*\ podIPsPerNode.
     """
 
     class NetworkPerformanceConfig(proto.Message):
@@ -1011,6 +1027,10 @@ class Tier(proto.Enum):
         number=13,
         message="PodCIDROverprovisionConfig",
     )
+    pod_ipv4_range_utilization: float = proto.Field(
+        proto.DOUBLE,
+        number=16,
+    )
 
 
 class ShieldedInstanceConfig(proto.Message):
@@ -2239,6 +2259,11 @@ class IPAllocationPolicy(proto.Message):
             are added to the cluster. These pod ranges can be used by
             new node pools to allocate pod IPs automatically. Once the
             range is removed it will not show up in IPAllocationPolicy.
+        default_pod_ipv4_range_utilization (float):
+            Output only. [Output only] The utilization of the cluster
+            default IPv4 range for pod. The ratio is Usage/[Total number
+            of IPs in the secondary range],
+            Usage=numNodes\ *numZones*\ podIPsPerNode.
     """
 
     class StackType(proto.Enum):
@@ -2359,6 +2384,10 @@ class IPv6AccessType(proto.Enum):
         number=24,
         message="AdditionalPodRangesConfig",
     )
+    default_pod_ipv4_range_utilization: float = proto.Field(
+        proto.DOUBLE,
+        number=25,
+    )
 
 
 class BinaryAuthorization(proto.Message):
@@ -3691,6 +3720,8 @@ class ClusterUpdate(proto.Message):
         desired_security_posture_config (google.cloud.container_v1beta1.types.SecurityPostureConfig):
             Enable/Disable Security Posture API features
             for the cluster.
+        desired_network_performance_config (google.cloud.container_v1beta1.types.NetworkConfig.ClusterNetworkPerformanceConfig):
+            The desired network performance config.
         desired_enable_fqdn_network_policy (bool):
             Enable/Disable FQDN Network Policy for the
             cluster.
@@ -3958,6 +3989,11 @@ class ClusterUpdate(proto.Message):
         number=124,
         message="SecurityPostureConfig",
     )
+    desired_network_performance_config: "NetworkConfig.ClusterNetworkPerformanceConfig" = proto.Field(
+        proto.MESSAGE,
+        number=125,
+        message="NetworkConfig.ClusterNetworkPerformanceConfig",
+    )
     desired_enable_fqdn_network_policy: bool = proto.Field(
         proto.BOOL,
         number=126,
@@ -3983,12 +4019,41 @@ class AdditionalPodRangesConfig(proto.Message):
         pod_range_names (MutableSequence[str]):
             Name for pod secondary ipv4 range which has
             the actual range defined ahead.
+        pod_range_info (MutableSequence[google.cloud.container_v1beta1.types.RangeInfo]):
+            Output only. [Output only] Information for additional pod
+            range.
     """
 
     pod_range_names: MutableSequence[str] = proto.RepeatedField(
         proto.STRING,
         number=1,
     )
+    pod_range_info: MutableSequence["RangeInfo"] = proto.RepeatedField(
+        proto.MESSAGE,
+        number=2,
+        message="RangeInfo",
+    )
+
+
+class RangeInfo(proto.Message):
+    r"""RangeInfo contains the range name and the range utilization
+    by this cluster.
+
+    Attributes:
+        range_name (str):
+            Output only. [Output only] Name of a range.
+        utilization (float):
+            Output only. [Output only] The utilization of the range.
+    """
+
+    range_name: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    utilization: float = proto.Field(
+        proto.DOUBLE,
+        number=2,
+    )
 
 
 class Operation(proto.Message):
@@ -6221,6 +6286,9 @@ class PlacementPolicy(proto.Message):
         Attributes:
             type_ (google.cloud.container_v1beta1.types.NodePool.PlacementPolicy.Type):
                 The type of placement.
+            tpu_topology (str):
+                TPU placement topology for pod slice node pool.
+                https://cloud.google.com/tpu/docs/types-topologies#tpu_topologies
         """
 
         class Type(proto.Enum):
@@ -6243,6 +6311,10 @@ class Type(proto.Enum):
             number=1,
             enum="NodePool.PlacementPolicy.Type",
         )
+        tpu_topology: str = proto.Field(
+            proto.STRING,
+            number=2,
+        )
 
     name: str = proto.Field(
         proto.STRING,
@@ -6908,6 +6980,9 @@ class AutoprovisioningNodePoolDefaults(proto.Message):
     r"""AutoprovisioningNodePoolDefaults contains defaults for a node
     pool created by NAP.
 
+
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
     Attributes:
         oauth_scopes (MutableSequence[str]):
             The set of Google API scopes to be made available on all of
@@ -6977,6 +7052,10 @@ class AutoprovisioningNodePoolDefaults(proto.Message):
             Please see
             https://cloud.google.com/kubernetes-engine/docs/concepts/node-images
             for available image types.
+        insecure_kubelet_readonly_port_enabled (bool):
+            Enable or disable Kubelet read only port.
+
+            This field is a member of `oneof`_ ``_insecure_kubelet_readonly_port_enabled``.
     """
 
     oauth_scopes: MutableSequence[str] = proto.RepeatedField(
@@ -7022,6 +7101,11 @@ class AutoprovisioningNodePoolDefaults(proto.Message):
         proto.STRING,
         number=10,
     )
+    insecure_kubelet_readonly_port_enabled: bool = proto.Field(
+        proto.BOOL,
+        number=13,
+        optional=True,
+    )
 
 
 class ResourceLimit(proto.Message):
@@ -7899,6 +7983,8 @@ class NetworkConfig(proto.Message):
         gateway_api_config (google.cloud.container_v1beta1.types.GatewayAPIConfig):
             GatewayAPIConfig contains the desired config
             of Gateway API on this cluster.
+        network_performance_config (google.cloud.container_v1beta1.types.NetworkConfig.ClusterNetworkPerformanceConfig):
+            Network bandwidth tier configuration.
         enable_fqdn_network_policy (bool):
             Whether FQDN Network Policy is enabled on
             this cluster.
@@ -7906,6 +7992,39 @@ class NetworkConfig(proto.Message):
             This field is a member of `oneof`_ ``_enable_fqdn_network_policy``.
     """
 
+    class ClusterNetworkPerformanceConfig(proto.Message):
+        r"""Configuration of all network bandwidth tiers
+
+        .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+        Attributes:
+            total_egress_bandwidth_tier (google.cloud.container_v1beta1.types.NetworkConfig.ClusterNetworkPerformanceConfig.Tier):
+                Specifies the total network bandwidth tier
+                for the NodePool.
+
+                This field is a member of `oneof`_ ``_total_egress_bandwidth_tier``.
+        """
+
+        class Tier(proto.Enum):
+            r"""Node network tier
+
+            Values:
+                TIER_UNSPECIFIED (0):
+                    Default value
+                TIER_1 (1):
+                    Higher bandwidth, actual values based on VM
+                    size.
+            """
+            TIER_UNSPECIFIED = 0
+            TIER_1 = 1
+
+        total_egress_bandwidth_tier: "NetworkConfig.ClusterNetworkPerformanceConfig.Tier" = proto.Field(
+            proto.ENUM,
+            number=1,
+            optional=True,
+            enum="NetworkConfig.ClusterNetworkPerformanceConfig.Tier",
+        )
+
     network: str = proto.Field(
         proto.STRING,
         number=1,
@@ -7952,6 +8071,11 @@ class NetworkConfig(proto.Message):
         number=16,
         message="GatewayAPIConfig",
     )
+    network_performance_config: ClusterNetworkPerformanceConfig = proto.Field(
+        proto.MESSAGE,
+        number=18,
+        message=ClusterNetworkPerformanceConfig,
+    )
     enable_fqdn_network_policy: bool = proto.Field(
         proto.BOOL,
         number=19,
@@ -8286,10 +8410,13 @@ class Provider(proto.Enum):
                 DNS resolution.
             CLOUD_DNS (2):
                 Use CloudDNS for DNS resolution.
+            KUBE_DNS (3):
+                Use KubeDNS for DNS resolution
         """
         PROVIDER_UNSPECIFIED = 0
         PLATFORM_DEFAULT = 1
         CLOUD_DNS = 2
+        KUBE_DNS = 3
 
     class DNSScope(proto.Enum):
         r"""DNSScope lists the various scopes of access to cluster DNS
diff --git a/samples/generated_samples/snippet_metadata_google.container.v1.json b/samples/generated_samples/snippet_metadata_google.container.v1.json
index 6741140c..e900b24e 100644
--- a/samples/generated_samples/snippet_metadata_google.container.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.container.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-container",
-    "version": "2.25.0"
+    "version": "2.26.0"
   },
   "snippets": [
     {
diff --git a/samples/generated_samples/snippet_metadata_google.container.v1beta1.json b/samples/generated_samples/snippet_metadata_google.container.v1beta1.json
index 8a20d902..53d1bcb2 100644
--- a/samples/generated_samples/snippet_metadata_google.container.v1beta1.json
+++ b/samples/generated_samples/snippet_metadata_google.container.v1beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-container",
-    "version": "2.25.0"
+    "version": "2.26.0"
   },
   "snippets": [
     {
diff --git a/tests/unit/gapic/container_v1/test_cluster_manager.py b/tests/unit/gapic/container_v1/test_cluster_manager.py
index ab4d44fe..453d2d1b 100644
--- a/tests/unit/gapic/container_v1/test_cluster_manager.py
+++ b/tests/unit/gapic/container_v1/test_cluster_manager.py
@@ -9923,9 +9923,11 @@ async def test_list_usable_subnetworks_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_usable_subnetworks(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token
diff --git a/tests/unit/gapic/container_v1beta1/test_cluster_manager.py b/tests/unit/gapic/container_v1beta1/test_cluster_manager.py
index 014f8e8f..2efad8d6 100644
--- a/tests/unit/gapic/container_v1beta1/test_cluster_manager.py
+++ b/tests/unit/gapic/container_v1beta1/test_cluster_manager.py
@@ -10035,9 +10035,11 @@ async def test_list_usable_subnetworks_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_usable_subnetworks(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token