diff --git a/generated/google/apis/storage_v1.rb b/generated/google/apis/storage_v1.rb
index 9233c2ef7..9557c3e75 100644
--- a/generated/google/apis/storage_v1.rb
+++ b/generated/google/apis/storage_v1.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://developers.google.com/storage/docs/json_api/
     module StorageV1
       VERSION = 'V1'
-      REVISION = '20180824'
+      REVISION = '20180905'
 
       # View and manage your data across Google Cloud Platform services
       AUTH_CLOUD_PLATFORM = 'https://www.googleapis.com/auth/cloud-platform'
diff --git a/generated/google/apis/storage_v1/classes.rb b/generated/google/apis/storage_v1/classes.rb
index ddda012db..6a4488528 100644
--- a/generated/google/apis/storage_v1/classes.rb
+++ b/generated/google/apis/storage_v1/classes.rb
@@ -384,10 +384,10 @@ module Google
               attr_accessor :is_live
               alias_method :is_live?, :is_live
             
-              # A regular expression that satisfies the RE2 syntax language. This condition is
+              # A regular expression that satisfies the RE2 syntax. This condition is
               # satisfied when the name of the object matches the RE2 pattern. Note: This
               # feature is currently in the "Early Access" launch stage and is only available
-              # to a whitelisted set of users; that means that this feature may changed in
+              # to a whitelisted set of users; that means that this feature may be changed in
               # backward-incompatible ways and that it is not guaranteed to be released.
               # Corresponds to the JSON property `matchesPattern`
               # @return [String]
@@ -864,8 +864,7 @@ module Google
           # @return [Fixnum]
           attr_accessor :generation
         
-          # The source object's name. The source object's bucket is implicitly the
-          # destination bucket.
+          # The source object's name. All source objects must reside in the same bucket.
           # Corresponds to the JSON property `name`
           # @return [String]
           attr_accessor :name
diff --git a/generated/google/apis/storage_v1/service.rb b/generated/google/apis/storage_v1/service.rb
index be9400ae0..696065bef 100644
--- a/generated/google/apis/storage_v1/service.rb
+++ b/generated/google/apis/storage_v1/service.rb
@@ -1469,7 +1469,8 @@ module Google
         
         # Concatenates a list of existing objects into a new object in the same bucket.
         # @param [String] destination_bucket
-        #   Name of the bucket in which to store the new object.
+        #   Name of the bucket containing the source objects. The destination object is
+        #   stored in this bucket.
         # @param [String] destination_object
         #   Name of the new object. For information about how to URL encode object names
         #   to be path safe, see Encoding URI Path Parts.
diff --git a/generated/google/apis/storage_v1beta2.rb b/generated/google/apis/storage_v1beta2.rb
index 6cf93df1e..74d351513 100644
--- a/generated/google/apis/storage_v1beta2.rb
+++ b/generated/google/apis/storage_v1beta2.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://developers.google.com/storage/docs/json_api/
     module StorageV1beta2
       VERSION = 'V1beta2'
-      REVISION = '20180620'
+      REVISION = '20180905'
 
       # Manage your data and permissions in Google Cloud Storage
       AUTH_DEVSTORAGE_FULL_CONTROL = 'https://www.googleapis.com/auth/devstorage.full_control'
diff --git a/generated/google/apis/storage_v1beta2/classes.rb b/generated/google/apis/storage_v1beta2/classes.rb
index fb20f4d5e..a3a3cc732 100644
--- a/generated/google/apis/storage_v1beta2/classes.rb
+++ b/generated/google/apis/storage_v1beta2/classes.rb
@@ -652,8 +652,7 @@ module Google
           # @return [Fixnum]
           attr_accessor :generation
         
-          # The source object's name. The source object's bucket is implicitly the
-          # destination bucket.
+          # The source object's name. All source objects must reside in the same bucket.
           # Corresponds to the JSON property `name`
           # @return [String]
           attr_accessor :name
diff --git a/generated/google/apis/storage_v1beta2/service.rb b/generated/google/apis/storage_v1beta2/service.rb
index a22aa2783..dd165ff0c 100644
--- a/generated/google/apis/storage_v1beta2/service.rb
+++ b/generated/google/apis/storage_v1beta2/service.rb
@@ -1064,7 +1064,8 @@ module Google
         
         # Concatenates a list of existing objects into a new object in the same bucket.
         # @param [String] destination_bucket
-        #   Name of the bucket in which to store the new object.
+        #   Name of the bucket containing the source objects. The destination object is
+        #   stored in this bucket.
         # @param [String] destination_object
         #   Name of the new object.
         # @param [Google::Apis::StorageV1beta2::ComposeRequest] compose_request_object