| A | ↘ | B | Stream got worse |
| ⇢ | F | ConnectorDB.import_users() added | |
| ⇢ | D | User.export() added | |
| ⇢ | C | User.import_device() added | |
| ⇢ | C | Device.import_stream() added | |
| ⇢ | B | Stream.export() added | |
| ⇢ | B | TestConnectorDB.test_importexport() added | |
| ⇢ | A | Device.export() added | |
| A | ↘ | B | Stream.insert_array() got worse |
| A | ↘ | B | DatabaseConnection.__init__() got worse |