diff --git a/api_names_out.yaml b/api_names_out.yaml
index dd27b458b0a..12ce542ba2e 100644
--- a/api_names_out.yaml
+++ b/api_names_out.yaml
@@ -409592,6 +409592,8 @@
 "/storagetransfer:v1/ObjectConditions/excludePrefixes/exclude_prefix": exclude_prefix
 "/storagetransfer:v1/ObjectConditions/includePrefixes": include_prefixes
 "/storagetransfer:v1/ObjectConditions/includePrefixes/include_prefix": include_prefix
+"/storagetransfer:v1/ObjectConditions/includeStorageClasses": include_storage_classes
+"/storagetransfer:v1/ObjectConditions/includeStorageClasses/include_storage_class": include_storage_class
 "/storagetransfer:v1/ObjectConditions/lastModifiedBefore": last_modified_before
 "/storagetransfer:v1/ObjectConditions/lastModifiedSince": last_modified_since
 "/storagetransfer:v1/ObjectConditions/matchGlob": match_glob
diff --git a/generated/google-apis-storagetransfer_v1/CHANGELOG.md b/generated/google-apis-storagetransfer_v1/CHANGELOG.md
index e37ce5dc182..7c5032d888a 100644
--- a/generated/google-apis-storagetransfer_v1/CHANGELOG.md
+++ b/generated/google-apis-storagetransfer_v1/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Release history for google-apis-storagetransfer_v1
 
+### v0.65.0 (2026-07-05)
+
+* Regenerated from discovery document revision 20260619
+
 ### v0.64.0 (2026-06-14)
 
 * Regenerated using generator version 0.19.0
diff --git a/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/classes.rb b/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/classes.rb
index 510ef4a2ad9..e888e978657 100644
--- a/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/classes.rb
+++ b/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/classes.rb
@@ -986,6 +986,18 @@ class ObjectConditions
         # @return [Array<String>]
         attr_accessor :include_prefixes
       
+        # Optional. If specified, objects in the source matching any of the storage
+        # classes in this field will be transferred. Objects in storage classes not
+        # included in this field will be skipped. If empty, the default behavior
+        # regarding the storage classes is applied. This includes all storage classes
+        # except "GLACIER" as per default behavior. Currently, this field only supports
+        # S3 data source. For the list of valid Amazon S3 storage classnames, please
+        # refer to the AWS documentation: https://docs.aws.amazon.com/AmazonS3/latest/
+        # userguide/sc-howtoset.html
+        # Corresponds to the JSON property `includeStorageClasses`
+        # @return [Array<String>]
+        attr_accessor :include_storage_classes
+      
         # If specified, only objects with a "last modification time" before this
         # timestamp and objects that don't have a "last modification time" are
         # transferred.
@@ -1039,6 +1051,7 @@ def initialize(**args)
         def update!(**args)
           @exclude_prefixes = args[:exclude_prefixes] if args.key?(:exclude_prefixes)
           @include_prefixes = args[:include_prefixes] if args.key?(:include_prefixes)
+          @include_storage_classes = args[:include_storage_classes] if args.key?(:include_storage_classes)
           @last_modified_before = args[:last_modified_before] if args.key?(:last_modified_before)
           @last_modified_since = args[:last_modified_since] if args.key?(:last_modified_since)
           @match_glob = args[:match_glob] if args.key?(:match_glob)
@@ -1848,8 +1861,9 @@ class TransferOptions
         attr_accessor :delete_objects_from_source_after_transfer
         alias_method :delete_objects_from_source_after_transfer?, :delete_objects_from_source_after_transfer
       
-        # Whether objects that exist only in the sink should be deleted. **Note:** This
-        # option and delete_objects_from_source_after_transfer are mutually exclusive.
+        # Whether objects that exist only in the sink should be deleted from the sink. **
+        # Note:** This option and delete_objects_from_source_after_transfer are mutually
+        # exclusive.
         # Corresponds to the JSON property `deleteObjectsUniqueInSink`
         # @return [Boolean]
         attr_accessor :delete_objects_unique_in_sink
diff --git a/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/gem_version.rb b/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/gem_version.rb
index 2cf05820304..bd0ddf660fe 100644
--- a/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/gem_version.rb
+++ b/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/gem_version.rb
@@ -16,13 +16,13 @@ module Google
   module Apis
     module StoragetransferV1
       # Version of the google-apis-storagetransfer_v1 gem
-      GEM_VERSION = "0.64.0"
+      GEM_VERSION = "0.65.0"
 
       # 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 = "20260109"
+      REVISION = "20260619"
     end
   end
 end
diff --git a/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/representations.rb b/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/representations.rb
index 86af1c44e06..86a709263f5 100644
--- a/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/representations.rb
+++ b/generated/google-apis-storagetransfer_v1/lib/google/apis/storagetransfer_v1/representations.rb
@@ -502,6 +502,7 @@ class ObjectConditions
         class Representation < Google::Apis::Core::JsonRepresentation
           collection :exclude_prefixes, as: 'excludePrefixes'
           collection :include_prefixes, as: 'includePrefixes'
+          collection :include_storage_classes, as: 'includeStorageClasses'
           property :last_modified_before, as: 'lastModifiedBefore'
           property :last_modified_since, as: 'lastModifiedSince'
           property :match_glob, as: 'matchGlob'