diff --git a/api_names_out.yaml b/api_names_out.yaml
index dd27b458b0a..6879dee0d20 100644
--- a/api_names_out.yaml
+++ b/api_names_out.yaml
@@ -289672,6 +289672,7 @@
 "/gkehub:v1/CommonFeatureSpec/clusterupgrade": clusterupgrade
 "/gkehub:v1/CommonFeatureSpec/dataplanev2": dataplanev2
 "/gkehub:v1/CommonFeatureSpec/fleetobservability": fleetobservability
+"/gkehub:v1/CommonFeatureSpec/mesh": mesh
 "/gkehub:v1/CommonFeatureSpec/multiclusteringress": multiclusteringress
 "/gkehub:v1/CommonFeatureSpec/rbacrolebindingactuation": rbacrolebindingactuation
 "/gkehub:v1/CommonFeatureSpec/workloadidentity": workloadidentity
@@ -290468,6 +290469,8 @@
 "/gkehub:v1/ServiceMeshDataPlaneManagement/details": details
 "/gkehub:v1/ServiceMeshDataPlaneManagement/details/detail": detail
 "/gkehub:v1/ServiceMeshDataPlaneManagement/state": state
+"/gkehub:v1/ServiceMeshFeatureSpec": service_mesh_feature_spec
+"/gkehub:v1/ServiceMeshFeatureSpec/modernizationCompatibility": modernization_compatibility
 "/gkehub:v1/ServiceMeshMembershipSpec": service_mesh_membership_spec
 "/gkehub:v1/ServiceMeshMembershipSpec/configApi": config_api
 "/gkehub:v1/ServiceMeshMembershipSpec/controlPlane": control_plane
diff --git a/generated/google-apis-gkehub_v1/CHANGELOG.md b/generated/google-apis-gkehub_v1/CHANGELOG.md
index 300ce8c82d2..8ff2f1cb4ac 100644
--- a/generated/google-apis-gkehub_v1/CHANGELOG.md
+++ b/generated/google-apis-gkehub_v1/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Release history for google-apis-gkehub_v1
 
+### v0.102.0 (2026-07-05)
+
+* Regenerated from discovery document revision 20260623
+
 ### v0.101.0 (2026-06-21)
 
 * Regenerated from discovery document revision 20260616
diff --git a/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/classes.rb b/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/classes.rb
index c19cdb25335..7c5ef7123c6 100644
--- a/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/classes.rb
+++ b/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/classes.rb
@@ -789,6 +789,11 @@ class CommonFeatureSpec
         # @return [Google::Apis::GkehubV1::FleetObservabilityFeatureSpec]
         attr_accessor :fleetobservability
       
+        # **Service Mesh**: Spec for the fleet for the servicemesh feature
+        # Corresponds to the JSON property `mesh`
+        # @return [Google::Apis::GkehubV1::ServiceMeshFeatureSpec]
+        attr_accessor :mesh
+      
         # **Multi-cluster Ingress**: The configuration for the MultiClusterIngress
         # feature.
         # Corresponds to the JSON property `multiclusteringress`
@@ -816,6 +821,7 @@ def update!(**args)
           @clusterupgrade = args[:clusterupgrade] if args.key?(:clusterupgrade)
           @dataplanev2 = args[:dataplanev2] if args.key?(:dataplanev2)
           @fleetobservability = args[:fleetobservability] if args.key?(:fleetobservability)
+          @mesh = args[:mesh] if args.key?(:mesh)
           @multiclusteringress = args[:multiclusteringress] if args.key?(:multiclusteringress)
           @rbacrolebindingactuation = args[:rbacrolebindingactuation] if args.key?(:rbacrolebindingactuation)
           @workloadidentity = args[:workloadidentity] if args.key?(:workloadidentity)
@@ -6402,6 +6408,25 @@ def update!(**args)
         end
       end
       
+      # **Service Mesh**: Spec for the fleet for the servicemesh feature
+      class ServiceMeshFeatureSpec
+        include Google::Apis::Core::Hashable
+      
+        # Optional. Specifies modernization compatibility for the fleet.
+        # Corresponds to the JSON property `modernizationCompatibility`
+        # @return [String]
+        attr_accessor :modernization_compatibility
+      
+        def initialize(**args)
+           update!(**args)
+        end
+      
+        # Update properties of this object
+        def update!(**args)
+          @modernization_compatibility = args[:modernization_compatibility] if args.key?(:modernization_compatibility)
+        end
+      end
+      
       # **Service Mesh**: Spec for a single Membership for the servicemesh feature
       class ServiceMeshMembershipSpec
         include Google::Apis::Core::Hashable
diff --git a/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/gem_version.rb b/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/gem_version.rb
index 75cb3308071..6807e57ba0a 100644
--- a/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/gem_version.rb
+++ b/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/gem_version.rb
@@ -16,13 +16,13 @@ module Google
   module Apis
     module GkehubV1
       # Version of the google-apis-gkehub_v1 gem
-      GEM_VERSION = "0.101.0"
+      GEM_VERSION = "0.102.0"
 
       # Version of the code generator used to generate this client
       GENERATOR_VERSION = "0.19.0"
 
       # Revision of the discovery document this client was generated from
-      REVISION = "20260616"
+      REVISION = "20260623"
     end
   end
 end
diff --git a/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/representations.rb b/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/representations.rb
index 573a7d2a8a4..48ebf1aafea 100644
--- a/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/representations.rb
+++ b/generated/google-apis-gkehub_v1/lib/google/apis/gkehub_v1/representations.rb
@@ -1036,6 +1036,12 @@ class Representation < Google::Apis::Core::JsonRepresentation; end
         include Google::Apis::Core::JsonObjectSupport
       end
       
+      class ServiceMeshFeatureSpec
+        class Representation < Google::Apis::Core::JsonRepresentation; end
+      
+        include Google::Apis::Core::JsonObjectSupport
+      end
+      
       class ServiceMeshMembershipSpec
         class Representation < Google::Apis::Core::JsonRepresentation; end
       
@@ -1361,6 +1367,8 @@ class Representation < Google::Apis::Core::JsonRepresentation
       
           property :fleetobservability, as: 'fleetobservability', class: Google::Apis::GkehubV1::FleetObservabilityFeatureSpec, decorator: Google::Apis::GkehubV1::FleetObservabilityFeatureSpec::Representation
       
+          property :mesh, as: 'mesh', class: Google::Apis::GkehubV1::ServiceMeshFeatureSpec, decorator: Google::Apis::GkehubV1::ServiceMeshFeatureSpec::Representation
+      
           property :multiclusteringress, as: 'multiclusteringress', class: Google::Apis::GkehubV1::MultiClusterIngressFeatureSpec, decorator: Google::Apis::GkehubV1::MultiClusterIngressFeatureSpec::Representation
       
           property :rbacrolebindingactuation, as: 'rbacrolebindingactuation', class: Google::Apis::GkehubV1::RbacRoleBindingActuationFeatureSpec, decorator: Google::Apis::GkehubV1::RbacRoleBindingActuationFeatureSpec::Representation
@@ -2917,6 +2925,13 @@ class Representation < Google::Apis::Core::JsonRepresentation
         end
       end
       
+      class ServiceMeshFeatureSpec
+        # @private
+        class Representation < Google::Apis::Core::JsonRepresentation
+          property :modernization_compatibility, as: 'modernizationCompatibility'
+        end
+      end
+      
       class ServiceMeshMembershipSpec
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation