diff --git a/api_names_out.yaml b/api_names_out.yaml
index 3fda2f5a83d..14b579f4afa 100644
--- a/api_names_out.yaml
+++ b/api_names_out.yaml
@@ -434440,6 +434440,7 @@
 "/workstations:v1/GceConfidentialInstanceConfig/enableConfidentialCompute": enable_confidential_compute
 "/workstations:v1/GceHyperdiskBalancedHighAvailability": gce_hyperdisk_balanced_high_availability
 "/workstations:v1/GceHyperdiskBalancedHighAvailability/archiveTimeout": archive_timeout
+"/workstations:v1/GceHyperdiskBalancedHighAvailability/maxSizeGb": max_size_gb
 "/workstations:v1/GceHyperdiskBalancedHighAvailability/reclaimPolicy": reclaim_policy
 "/workstations:v1/GceHyperdiskBalancedHighAvailability/sizeGb": size_gb
 "/workstations:v1/GceHyperdiskBalancedHighAvailability/sourceSnapshot": source_snapshot
@@ -434480,6 +434481,7 @@
 "/workstations:v1/GceRegionalPersistentDisk/archiveTimeout": archive_timeout
 "/workstations:v1/GceRegionalPersistentDisk/diskType": disk_type
 "/workstations:v1/GceRegionalPersistentDisk/fsType": fs_type
+"/workstations:v1/GceRegionalPersistentDisk/maxSizeGb": max_size_gb
 "/workstations:v1/GceRegionalPersistentDisk/reclaimPolicy": reclaim_policy
 "/workstations:v1/GceRegionalPersistentDisk/sizeGb": size_gb
 "/workstations:v1/GceRegionalPersistentDisk/sourceSnapshot": source_snapshot
@@ -434622,6 +434624,8 @@
 "/workstations:v1/Workstation/labels": labels
 "/workstations:v1/Workstation/labels/label": label
 "/workstations:v1/Workstation/name": name
+"/workstations:v1/Workstation/persistentDirectories": persistent_directories
+"/workstations:v1/Workstation/persistentDirectories/persistent_directory": persistent_directory
 "/workstations:v1/Workstation/reconciling": reconciling
 "/workstations:v1/Workstation/runtimeHost": runtime_host
 "/workstations:v1/Workstation/sourceWorkstation": source_workstation
@@ -434690,6 +434694,9 @@
 "/workstations:v1/WorkstationConfig/runningTimeout": running_timeout
 "/workstations:v1/WorkstationConfig/uid": uid
 "/workstations:v1/WorkstationConfig/updateTime": update_time
+"/workstations:v1/WorkstationPersistentDirectory": workstation_persistent_directory
+"/workstations:v1/WorkstationPersistentDirectory/mountPath": mount_path
+"/workstations:v1/WorkstationPersistentDirectory/sizeGb": size_gb
 "/workstations:v1/fields": fields
 "/workstations:v1/key": key
 "/workstations:v1/quotaUser": quota_user
diff --git a/generated/google-apis-workstations_v1/CHANGELOG.md b/generated/google-apis-workstations_v1/CHANGELOG.md
index e7b0fda2b8b..097da046bbd 100644
--- a/generated/google-apis-workstations_v1/CHANGELOG.md
+++ b/generated/google-apis-workstations_v1/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Release history for google-apis-workstations_v1
 
+### v0.37.0 (2026-06-21)
+
+* Regenerated from discovery document revision 20260604
+
 ### v0.36.0 (2026-06-14)
 
 * Regenerated using generator version 0.19.0
diff --git a/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/classes.rb b/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/classes.rb
index 7bdd4d75596..5e7e84818de 100644
--- a/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/classes.rb
+++ b/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/classes.rb
@@ -563,6 +563,12 @@ class GceHyperdiskBalancedHighAvailability
         # @return [String]
         attr_accessor :archive_timeout
       
+        # Optional. Maximum size in GB to which this persistent directory can be resized.
+        # Defaults to unlimited if not set.
+        # Corresponds to the JSON property `maxSizeGb`
+        # @return [Fixnum]
+        attr_accessor :max_size_gb
+      
         # Optional. Whether the persistent disk should be deleted when the workstation
         # is deleted. Valid values are `DELETE` and `RETAIN`. Defaults to `DELETE`.
         # Corresponds to the JSON property `reclaimPolicy`
@@ -590,6 +596,7 @@ def initialize(**args)
         # Update properties of this object
         def update!(**args)
           @archive_timeout = args[:archive_timeout] if args.key?(:archive_timeout)
+          @max_size_gb = args[:max_size_gb] if args.key?(:max_size_gb)
           @reclaim_policy = args[:reclaim_policy] if args.key?(:reclaim_policy)
           @size_gb = args[:size_gb] if args.key?(:size_gb)
           @source_snapshot = args[:source_snapshot] if args.key?(:source_snapshot)
@@ -890,6 +897,12 @@ class GceRegionalPersistentDisk
         # @return [String]
         attr_accessor :fs_type
       
+        # Optional. Maximum size in GB to which this persistent directory can be resized.
+        # Defaults to unlimited if not set.
+        # Corresponds to the JSON property `maxSizeGb`
+        # @return [Fixnum]
+        attr_accessor :max_size_gb
+      
         # Optional. Whether the persistent disk should be deleted when the workstation
         # is deleted. Valid values are `DELETE` and `RETAIN`. Defaults to `DELETE`.
         # Corresponds to the JSON property `reclaimPolicy`
@@ -920,6 +933,7 @@ def update!(**args)
           @archive_timeout = args[:archive_timeout] if args.key?(:archive_timeout)
           @disk_type = args[:disk_type] if args.key?(:disk_type)
           @fs_type = args[:fs_type] if args.key?(:fs_type)
+          @max_size_gb = args[:max_size_gb] if args.key?(:max_size_gb)
           @reclaim_policy = args[:reclaim_policy] if args.key?(:reclaim_policy)
           @size_gb = args[:size_gb] if args.key?(:size_gb)
           @source_snapshot = args[:source_snapshot] if args.key?(:source_snapshot)
@@ -1962,6 +1976,11 @@ class Workstation
         # @return [String]
         attr_accessor :name
       
+        # Optional. Directories to persist across workstation sessions.
+        # Corresponds to the JSON property `persistentDirectories`
+        # @return [Array<Google::Apis::WorkstationsV1::WorkstationPersistentDirectory>]
+        attr_accessor :persistent_directories
+      
         # Output only. Indicates whether this workstation is currently being updated to
         # match its intended state.
         # Corresponds to the JSON property `reconciling`
@@ -2017,6 +2036,7 @@ def update!(**args)
           @kms_key = args[:kms_key] if args.key?(:kms_key)
           @labels = args[:labels] if args.key?(:labels)
           @name = args[:name] if args.key?(:name)
+          @persistent_directories = args[:persistent_directories] if args.key?(:persistent_directories)
           @reconciling = args[:reconciling] if args.key?(:reconciling)
           @runtime_host = args[:runtime_host] if args.key?(:runtime_host)
           @source_workstation = args[:source_workstation] if args.key?(:source_workstation)
@@ -2439,6 +2459,33 @@ def update!(**args)
           @update_time = args[:update_time] if args.key?(:update_time)
         end
       end
+      
+      # A directory to persist across workstation sessions. Updates to this field will
+      # only take effect on this workstation after it is restarted.
+      class WorkstationPersistentDirectory
+        include Google::Apis::Core::Hashable
+      
+        # Optional. The mount path of the persistent directory.
+        # Corresponds to the JSON property `mountPath`
+        # @return [String]
+        attr_accessor :mount_path
+      
+        # Optional. Size of the persistent directory in GB. If specified in an update
+        # request, this is the desired size of the directory.
+        # Corresponds to the JSON property `sizeGb`
+        # @return [Fixnum]
+        attr_accessor :size_gb
+      
+        def initialize(**args)
+           update!(**args)
+        end
+      
+        # Update properties of this object
+        def update!(**args)
+          @mount_path = args[:mount_path] if args.key?(:mount_path)
+          @size_gb = args[:size_gb] if args.key?(:size_gb)
+        end
+      end
     end
   end
 end
diff --git a/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/gem_version.rb b/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/gem_version.rb
index 3947c164b9e..cdb14aed36b 100644
--- a/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/gem_version.rb
+++ b/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/gem_version.rb
@@ -16,13 +16,13 @@ module Google
   module Apis
     module WorkstationsV1
       # Version of the google-apis-workstations_v1 gem
-      GEM_VERSION = "0.36.0"
+      GEM_VERSION = "0.37.0"
 
       # 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 = "20260427"
+      REVISION = "20260604"
     end
   end
 end
diff --git a/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/representations.rb b/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/representations.rb
index a2678b2b5e5..c92440c08e9 100644
--- a/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/representations.rb
+++ b/generated/google-apis-workstations_v1/lib/google/apis/workstations_v1/representations.rb
@@ -310,6 +310,12 @@ class Representation < Google::Apis::Core::JsonRepresentation; end
         include Google::Apis::Core::JsonObjectSupport
       end
       
+      class WorkstationPersistentDirectory
+        class Representation < Google::Apis::Core::JsonRepresentation; end
+      
+        include Google::Apis::Core::JsonObjectSupport
+      end
+      
       class Accelerator
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
@@ -428,6 +434,7 @@ class GceHyperdiskBalancedHighAvailability
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
           property :archive_timeout, as: 'archiveTimeout'
+          property :max_size_gb, as: 'maxSizeGb'
           property :reclaim_policy, as: 'reclaimPolicy'
           property :size_gb, as: 'sizeGb'
           property :source_snapshot, as: 'sourceSnapshot'
@@ -486,6 +493,7 @@ class Representation < Google::Apis::Core::JsonRepresentation
           property :archive_timeout, as: 'archiveTimeout'
           property :disk_type, as: 'diskType'
           property :fs_type, as: 'fsType'
+          property :max_size_gb, as: 'maxSizeGb'
           property :reclaim_policy, as: 'reclaimPolicy'
           property :size_gb, as: 'sizeGb'
           property :source_snapshot, as: 'sourceSnapshot'
@@ -756,6 +764,8 @@ class Representation < Google::Apis::Core::JsonRepresentation
           property :kms_key, as: 'kmsKey'
           hash :labels, as: 'labels'
           property :name, as: 'name'
+          collection :persistent_directories, as: 'persistentDirectories', class: Google::Apis::WorkstationsV1::WorkstationPersistentDirectory, decorator: Google::Apis::WorkstationsV1::WorkstationPersistentDirectory::Representation
+      
           property :reconciling, as: 'reconciling'
           property :runtime_host, as: 'runtimeHost', class: Google::Apis::WorkstationsV1::RuntimeHost, decorator: Google::Apis::WorkstationsV1::RuntimeHost::Representation
       
@@ -837,6 +847,14 @@ class Representation < Google::Apis::Core::JsonRepresentation
           property :update_time, as: 'updateTime'
         end
       end
+      
+      class WorkstationPersistentDirectory
+        # @private
+        class Representation < Google::Apis::Core::JsonRepresentation
+          property :mount_path, as: 'mountPath'
+          property :size_gb, as: 'sizeGb'
+        end
+      end
     end
   end
 end