| A | ↘ | B | Quoter got worse |
| B | ↛ | QueryHelper removed |
| ⇢ | B | Query::normalizeSelect() added | |
| ⇢ | B | Quoter::cleanUpTableNames() added | |
| ⇢ | A | Query::normalizeOrderBy() added | |
| ⇢ | A | Query::isEmpty() added | |
| A | ↘ | D | Query::filterCondition() got worse |
| D | ↛ | QueryHelper::filterCondition() removed | |
| B | ↛ | QueryHelper::normalizeSelect() removed | |
| B | ↛ | QueryHelper::cleanUpTableNames() removed | |
| A | ↛ | QueryHelper::normalizeOrderBy() removed | |
| A | ↛ | QueryHelper::isEmpty() removed | |
| A | ↛ | Query::createQueryHelper() removed |