diff --git a/google-iam-v1/.OwlBot.yaml b/google-iam-v1/.OwlBot.yaml
deleted file mode 100644
index f0c1f0363205..000000000000
--- a/google-iam-v1/.OwlBot.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-deep-copy-regex:
-  - source: /google/iam/v1/[^/]+-ruby/(.*)
-    dest: /owl-bot-staging/google-iam-v1/$1
diff --git a/google-iam-v1/.owlbot-manifest.json b/google-iam-v1/.owlbot-manifest.json
deleted file mode 100644
index ba304a66fda6..000000000000
--- a/google-iam-v1/.owlbot-manifest.json
+++ /dev/null
@@ -1,56 +0,0 @@
-{
-  "generated": [
-    ".gitignore",
-    ".repo-metadata.json",
-    ".rubocop.yml",
-    ".toys.rb",
-    ".yardopts",
-    "CHANGELOG.md",
-    "Gemfile",
-    "LICENSE.md",
-    "README.md",
-    "Rakefile",
-    "gapic_metadata.json",
-    "google-iam-v1.gemspec",
-    "lib/google-iam-v1.rb",
-    "lib/google/iam/v1.rb",
-    "lib/google/iam/v1/iam_policy.rb",
-    "lib/google/iam/v1/iam_policy/client.rb",
-    "lib/google/iam/v1/iam_policy/credentials.rb",
-    "lib/google/iam/v1/iam_policy/rest.rb",
-    "lib/google/iam/v1/iam_policy/rest/client.rb",
-    "lib/google/iam/v1/iam_policy/rest/service_stub.rb",
-    "lib/google/iam/v1/iam_policy_pb.rb",
-    "lib/google/iam/v1/iam_policy_services_pb.rb",
-    "lib/google/iam/v1/logging/audit_data_pb.rb",
-    "lib/google/iam/v1/options_pb.rb",
-    "lib/google/iam/v1/policy_pb.rb",
-    "lib/google/iam/v1/resource_policy_member_pb.rb",
-    "lib/google/iam/v1/rest.rb",
-    "lib/google/iam/v1/version.rb",
-    "proto_docs/README.md",
-    "proto_docs/google/api/client.rb",
-    "proto_docs/google/api/field_behavior.rb",
-    "proto_docs/google/api/launch_stage.rb",
-    "proto_docs/google/api/resource.rb",
-    "proto_docs/google/iam/v1/iam_policy.rb",
-    "proto_docs/google/iam/v1/options.rb",
-    "proto_docs/google/iam/v1/policy.rb",
-    "proto_docs/google/iam/v1/resource_policy_member.rb",
-    "proto_docs/google/protobuf/duration.rb",
-    "proto_docs/google/protobuf/field_mask.rb",
-    "proto_docs/google/type/expr.rb",
-    "snippets/Gemfile",
-    "snippets/iam_policy/get_iam_policy.rb",
-    "snippets/iam_policy/set_iam_policy.rb",
-    "snippets/iam_policy/test_iam_permissions.rb",
-    "snippets/snippet_metadata_google.iam.v1.json",
-    "test/google/iam/v1/iam_policy_rest_test.rb",
-    "test/google/iam/v1/iam_policy_test.rb",
-    "test/helper.rb"
-  ],
-  "static": [
-    ".OwlBot.yaml",
-    ".owlbot.rb"
-  ]
-}
diff --git a/google-iam-v1/.owlbot.rb b/google-iam-v1/.owlbot.rb
deleted file mode 100644
index c842b916f10a..000000000000
--- a/google-iam-v1/.owlbot.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-# Copyright 2022 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Custom readme because this isn't an end-user client.
-OwlBot.prevent_overwrite_of_existing "README.md"
-
-# Remove unused AUTHENTICATION.md
-FileUtils.rm_f File.join(OwlBot.staging_dir, "AUTHENTICATION.md")
-OwlBot.modifier path: "google-iam-v1.gemspec", name: "Remove auth docs from gemspec" do |content|
-  content&.sub '"AUTHENTICATION.md", ', ""
-end
-OwlBot.modifier path: ".yardopts", name: "Remove auth docs from yardopts" do |content|
-  content&.sub "AUTHENTICATION.md\n", ""
-end
-
-OwlBot.move_files
diff --git a/google-iam-v1/.toys.rb b/google-iam-v1/.toys.rb
index 23434bdd5d5b..177e22456e8a 100644
--- a/google-iam-v1/.toys.rb
+++ b/google-iam-v1/.toys.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2024 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/Rakefile b/google-iam-v1/Rakefile
index d33122b3e179..b98eca5ed91e 100644
--- a/google-iam-v1/Rakefile
+++ b/google-iam-v1/Rakefile
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google-iam-v1.rb b/google-iam-v1/lib/google-iam-v1.rb
index 05b41f9941b0..8535b41b7b04 100644
--- a/google-iam-v1/lib/google-iam-v1.rb
+++ b/google-iam-v1/lib/google-iam-v1.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google/iam/v1.rb b/google-iam-v1/lib/google/iam/v1.rb
index 0bd4196ef807..82236fcafd28 100644
--- a/google-iam-v1/lib/google/iam/v1.rb
+++ b/google-iam-v1/lib/google/iam/v1.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google/iam/v1/iam_policy.rb b/google-iam-v1/lib/google/iam/v1/iam_policy.rb
index becba8c13cb5..548e35457af4 100644
--- a/google-iam-v1/lib/google/iam/v1/iam_policy.rb
+++ b/google-iam-v1/lib/google/iam/v1/iam_policy.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google/iam/v1/iam_policy/client.rb b/google-iam-v1/lib/google/iam/v1/iam_policy/client.rb
index 87e9ff4f7069..8d12279d3de3 100644
--- a/google-iam-v1/lib/google/iam/v1/iam_policy/client.rb
+++ b/google-iam-v1/lib/google/iam/v1/iam_policy/client.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google/iam/v1/iam_policy/credentials.rb b/google-iam-v1/lib/google/iam/v1/iam_policy/credentials.rb
index 5236446083ba..ae4df78450b3 100644
--- a/google-iam-v1/lib/google/iam/v1/iam_policy/credentials.rb
+++ b/google-iam-v1/lib/google/iam/v1/iam_policy/credentials.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google/iam/v1/iam_policy/rest.rb b/google-iam-v1/lib/google/iam/v1/iam_policy/rest.rb
index d6482aeac7ac..ddd2c64fa229 100644
--- a/google-iam-v1/lib/google/iam/v1/iam_policy/rest.rb
+++ b/google-iam-v1/lib/google/iam/v1/iam_policy/rest.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2023 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google/iam/v1/iam_policy/rest/client.rb b/google-iam-v1/lib/google/iam/v1/iam_policy/rest/client.rb
index 34651889cbf3..d1ac0de599ca 100644
--- a/google-iam-v1/lib/google/iam/v1/iam_policy/rest/client.rb
+++ b/google-iam-v1/lib/google/iam/v1/iam_policy/rest/client.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2023 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google/iam/v1/iam_policy/rest/service_stub.rb b/google-iam-v1/lib/google/iam/v1/iam_policy/rest/service_stub.rb
index bef0b83b5211..39dc21a185b4 100644
--- a/google-iam-v1/lib/google/iam/v1/iam_policy/rest/service_stub.rb
+++ b/google-iam-v1/lib/google/iam/v1/iam_policy/rest/service_stub.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2023 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google/iam/v1/iam_policy_services_pb.rb b/google-iam-v1/lib/google/iam/v1/iam_policy_services_pb.rb
index e58f9f24737f..45ac992e8c4e 100644
--- a/google-iam-v1/lib/google/iam/v1/iam_policy_services_pb.rb
+++ b/google-iam-v1/lib/google/iam/v1/iam_policy_services_pb.rb
@@ -1,7 +1,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # Source: google/iam/v1/iam_policy.proto for package 'google.iam.v1'
 # Original file comments:
-# Copyright 2022 Google LLC
+# Copyright 2025 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/lib/google/iam/v1/rest.rb b/google-iam-v1/lib/google/iam/v1/rest.rb
index 5ff40844fc31..6c154f17a54d 100644
--- a/google-iam-v1/lib/google/iam/v1/rest.rb
+++ b/google-iam-v1/lib/google/iam/v1/rest.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2023 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/README.md b/google-iam-v1/proto_docs/README.md
index d9dc948b945f..bdc8862eed53 100644
--- a/google-iam-v1/proto_docs/README.md
+++ b/google-iam-v1/proto_docs/README.md
@@ -1,4 +1,4 @@
-# IAM Protocol Buffer Documentation
+# IAM Meta V1 Protocol Buffer Documentation
 
 These files are for the YARD documentation of the generated protobuf files.
 They are not intended to be required or loaded at runtime.
diff --git a/google-iam-v1/proto_docs/google/api/client.rb b/google-iam-v1/proto_docs/google/api/client.rb
index e62ceba4577a..3ab0b096d445 100644
--- a/google-iam-v1/proto_docs/google/api/client.rb
+++ b/google-iam-v1/proto_docs/google/api/client.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/api/field_behavior.rb b/google-iam-v1/proto_docs/google/api/field_behavior.rb
index e4dd25d9abf0..582be187d115 100644
--- a/google-iam-v1/proto_docs/google/api/field_behavior.rb
+++ b/google-iam-v1/proto_docs/google/api/field_behavior.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/api/launch_stage.rb b/google-iam-v1/proto_docs/google/api/launch_stage.rb
index ce75038366ae..9392a413fb1b 100644
--- a/google-iam-v1/proto_docs/google/api/launch_stage.rb
+++ b/google-iam-v1/proto_docs/google/api/launch_stage.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/api/resource.rb b/google-iam-v1/proto_docs/google/api/resource.rb
index 4c81798041c0..25dec4847ac1 100644
--- a/google-iam-v1/proto_docs/google/api/resource.rb
+++ b/google-iam-v1/proto_docs/google/api/resource.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/iam/v1/iam_policy.rb b/google-iam-v1/proto_docs/google/iam/v1/iam_policy.rb
index 447ba2367b16..5445c77f8258 100644
--- a/google-iam-v1/proto_docs/google/iam/v1/iam_policy.rb
+++ b/google-iam-v1/proto_docs/google/iam/v1/iam_policy.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/iam/v1/logging/audit_data.rb b/google-iam-v1/proto_docs/google/iam/v1/logging/audit_data.rb
new file mode 100644
index 000000000000..56cdaf2548ad
--- /dev/null
+++ b/google-iam-v1/proto_docs/google/iam/v1/logging/audit_data.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Auto-generated by gapic-generator-ruby. DO NOT EDIT!
+
+
+module Google
+  module Iam
+    module V1
+      module Logging
+        # Audit log information specific to Cloud IAM. This message is serialized
+        # as an `Any` type in the `ServiceData` message of an
+        # `AuditLog` message.
+        # @!attribute [rw] policy_delta
+        #   @return [::Google::Iam::V1::PolicyDelta]
+        #     Policy delta between the original policy and the newly set policy.
+        class AuditData
+          include ::Google::Protobuf::MessageExts
+          extend ::Google::Protobuf::MessageExts::ClassMethods
+        end
+      end
+    end
+  end
+end
diff --git a/google-iam-v1/proto_docs/google/iam/v1/options.rb b/google-iam-v1/proto_docs/google/iam/v1/options.rb
index 79dae8815aca..60713d995b86 100644
--- a/google-iam-v1/proto_docs/google/iam/v1/options.rb
+++ b/google-iam-v1/proto_docs/google/iam/v1/options.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/iam/v1/policy.rb b/google-iam-v1/proto_docs/google/iam/v1/policy.rb
index d6a6f800fd50..d693e0c6371c 100644
--- a/google-iam-v1/proto_docs/google/iam/v1/policy.rb
+++ b/google-iam-v1/proto_docs/google/iam/v1/policy.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/iam/v1/resource_policy_member.rb b/google-iam-v1/proto_docs/google/iam/v1/resource_policy_member.rb
index 8f8e7bc4de7e..5f60d79049ba 100644
--- a/google-iam-v1/proto_docs/google/iam/v1/resource_policy_member.rb
+++ b/google-iam-v1/proto_docs/google/iam/v1/resource_policy_member.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2024 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/protobuf/duration.rb b/google-iam-v1/proto_docs/google/protobuf/duration.rb
index ca97d06a00ef..ea59f1f91daf 100644
--- a/google-iam-v1/proto_docs/google/protobuf/duration.rb
+++ b/google-iam-v1/proto_docs/google/protobuf/duration.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/protobuf/field_mask.rb b/google-iam-v1/proto_docs/google/protobuf/field_mask.rb
index 5f816f4a2702..7f3ffc78601a 100644
--- a/google-iam-v1/proto_docs/google/protobuf/field_mask.rb
+++ b/google-iam-v1/proto_docs/google/protobuf/field_mask.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/proto_docs/google/type/expr.rb b/google-iam-v1/proto_docs/google/type/expr.rb
index 0602180c6ada..53e7733b6592 100644
--- a/google-iam-v1/proto_docs/google/type/expr.rb
+++ b/google-iam-v1/proto_docs/google/type/expr.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/snippets/Gemfile b/google-iam-v1/snippets/Gemfile
index 56ec9858b7a9..222c98f20f3c 100644
--- a/google-iam-v1/snippets/Gemfile
+++ b/google-iam-v1/snippets/Gemfile
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/snippets/iam_policy/get_iam_policy.rb b/google-iam-v1/snippets/iam_policy/get_iam_policy.rb
index 7a764b8285ef..c1935fa21a05 100644
--- a/google-iam-v1/snippets/iam_policy/get_iam_policy.rb
+++ b/google-iam-v1/snippets/iam_policy/get_iam_policy.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/snippets/iam_policy/set_iam_policy.rb b/google-iam-v1/snippets/iam_policy/set_iam_policy.rb
index 9f13522e3e9e..81aaa0bbdad7 100644
--- a/google-iam-v1/snippets/iam_policy/set_iam_policy.rb
+++ b/google-iam-v1/snippets/iam_policy/set_iam_policy.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/snippets/iam_policy/test_iam_permissions.rb b/google-iam-v1/snippets/iam_policy/test_iam_permissions.rb
index 40522250d618..2379ca2c168d 100644
--- a/google-iam-v1/snippets/iam_policy/test_iam_permissions.rb
+++ b/google-iam-v1/snippets/iam_policy/test_iam_permissions.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/test/google/iam/v1/iam_policy_rest_test.rb b/google-iam-v1/test/google/iam/v1/iam_policy_rest_test.rb
index a6f3417916b2..d00eb93071e6 100644
--- a/google-iam-v1/test/google/iam/v1/iam_policy_rest_test.rb
+++ b/google-iam-v1/test/google/iam/v1/iam_policy_rest_test.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2023 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/test/google/iam/v1/iam_policy_test.rb b/google-iam-v1/test/google/iam/v1/iam_policy_test.rb
index 4e3d3306f288..86b551f1cfd6 100644
--- a/google-iam-v1/test/google/iam/v1/iam_policy_test.rb
+++ b/google-iam-v1/test/google/iam/v1/iam_policy_test.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/google-iam-v1/test/helper.rb b/google-iam-v1/test/helper.rb
index 8d97e8142b62..4fb6756ac7e2 100644
--- a/google-iam-v1/test/helper.rb
+++ b/google-iam-v1/test/helper.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# Copyright 2022 Google LLC
+# Copyright 2026 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/librarian.yaml b/librarian.yaml
index 69d98c822e15..fee75e117c42 100644
--- a/librarian.yaml
+++ b/librarian.yaml
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 language: ruby
-version: v0.40.1-0.20260903215010-a325c538d912
+version: v0.40.1-0.20260904160715-39fbb3f6fecb
 sources:
   googleapis:
     commit: 00ff8fcb95cafbac573cc449b0d1a039244f1b4b
@@ -4287,8 +4287,12 @@ libraries:
     apis:
       - path: google/iam/v1
     keep:
+      - .yardopts
+      - google-iam-v1.gemspec
       - README.md
-    skip_generate: true
+    ruby:
+      delete_generation_output_paths:
+        - AUTHENTICATION.md
   - name: google-iam-v1beta
     version: 0.15.2
     apis: