| A | ↘ | B | TableInheritance got worse | 
| ⇢ | A | TableInheritance::addForeignKey() added | |
| ⇢ | A | TableInheritance::getParentForForeignKey() added | |
| ⇢ | A | TableInheritance::getOuterFields() added | |
| ⇢ | A | JoinedTable::getFkAction() added | |
| ⇢ | A | JoinedTable::isCreateFk() added | |
| A | ↘ | B | MergeIndexes::run() got worse |