Upgrade Notes¶

• Checks specific to the DB2 database have been removed. This databasehas not been supported by any OpenStack project for many years.

• Thecheck_foreign_keys helper of theoslo_db.sqlalchemy.test_migrations.ModelsMigrationsSync base test classhas been removed. This was deprecated in 1.4.1 as alembic now supports thiscapability.

• The_walk_versions,_migrate_down, and_migrate_up methods of theoslo_db.sqlalchemy.test_migrations.ModelsMigrationsSync base test class have been removed. These were deprecated in 0.5.0 in favour of their non-private equivalents,walk_versions,migrate_down, andmigrate_up respectively.

Deprecation Notes¶

• Theoslo_db.concurrency.TpoolDbapiWrapper class and supporting[database]use_tpool config option are now deprecated.This feature never graduated from experimental status and is slated forremoval due to lack of maintenance and test coverage. Users should switchtooslo_db.api.DBAPI.from_config and remove references to thedeprecated config option from their documentation.