| ⇢ | A | DBBackendTestCase added |
| ⇢ | F | DBBackendTestCase.test_migration_create_drop_model... added | |
| ⇢ | C | DBBackendTestCase.test_migration_alter_field() added | |
| ⇢ | B | SchemaEditor._apply_hstore_constraints() added | |
| ⇢ | A | SchemaEditor.delete_model() added | |
| ⇢ | A | DBBackendTestCase.test_hstore_extension_enabled() added | |
| ⇢ | A | define_fake_model() added | |
| ⇢ | A | TestProject.apps() added | |
| C | ↗ | A | SchemaEditor._update_hstore_constraints() improved |