| B | ↗ | A | MysqlDriver improved |
| ⇢ | A | Driver::__construct() added | |
| ⇢ | A | Driver::fieldExists() added | |
| ⇢ | A | Driver::rawQuery() added | |
| ⇢ | A | Driver::__destruct() added | |
| ⇢ | A | Driver::tableExists() added | |
| B | ↗ | A | MysqlDriver::listFields() improved |
| D | ↗ | C | MysqlDriver::insert() improved |
| B | ↛ | MysqlDriver::__construct() removed | |
| A | ↛ | MysqlDriver::rawQuery() removed | |
| A | ↛ | MysqlDriver::fieldExists() removed | |
| A | ↛ | MysqlDriver::__destruct() removed | |
| A | ↛ | MysqlDriver::tableExists() removed |