diff --git a/schema/alter-table-log.txt b/schema/alter-table-log.txt
index 26c21dd..bbc9381 100644
--- a/schema/alter-table-log.txt
+++ b/schema/alter-table-log.txt
@@ -1,7 +1,6 @@
-# Copyright 2016 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file or at
-# https://developers.google.com/open-source/licenses/bsd
+# Copyright 2016 The Chromium Authors
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
 
 This file contains a log of ALTER TABLE statements that need to be executed
 to bring a Monorail SQL database up to the current schema.
@@ -1742,3 +1741,13 @@
 
 ALTER TABLE Project ADD COLUMN issue_notify_always_detailed BOOLEAN DEFAULT FALSE;
 
+================================================================
+2022-12-27: Added more IssueUpdate fields.
+
+ALTER TABLE IssueUpdate ADD COLUMN added_component_id VARCHAR(80);
+ALTER TABLE IssueUpdate ADD COLUMN removed_component_id VARCHAR(80);
+
+================================================================
+2023-09-11: Add new modified timestamp. See: go/monorail-enhanced-modified-time
+
+ALTER TABLE Issue ADD COLUMN migration_modified INT;