| F | ↗ | A | Schema improved | 
| B | ↘ | C | Schema::findConstraints() got worse | 
| D | ↛ | Schema::findColumns() removed | |
| B | ↛ | Schema::loadTableConstraints() removed | |
| B | ↛ | Schema::loadColumnSchema() removed | |
| A | ↛ | Schema::getUniqueIndexInformation() removed | |
| A | ↛ | Schema::findUniqueIndexes() removed |