We upgraded our app from Rails 1.2 to 2.3. There were no outstanding database migrations, i.e. the database was up-to-date during the upgrade/deployment process. The schema_migrations table was created, but it was not populated and the schema_info table was not removed. Can anyone explain why the new schema_migrations table would be created but the data from the schema_info table not used to insert values into it? Everything I've read about the upgrade process says the schema_info table would automatically be replaced with the schema_migrations table; does this not include actually populating the new table??