| C | ↗ | B | Database::query() improved |
| A | ↛ | Database::setQueryResultForSelect() removed | |
| A | ↛ | Database::getPreparedQuery() removed | |
| A | ↛ | Database::runSqlQuery() removed | |
| A | ↛ | Database::setBenchmark() removed | |
| A | ↛ | Database::getBenchmark() removed | |
| A | ↛ | Database::error() removed | |
| A | ↛ | Database::setQueryError() removed | |
| A | ↛ | Database::setQueryResultForNonSelect() removed | |
| A | ↛ | Database::getCacheBenchmarkKeyForQuery() removed |