| B | ↗ | A | BaseRelationQuery improved |
| ⇢ | B | Helpers::assocModels() added | |
| ⇢ | B | Helpers::buildBuckets() added | |
| ⇢ | A | Helpers::normalizeModelKey() added | |
| B | ↗ | A | BaseRelationQuery::populateRelation() improved |
| A | ↛ | BaseRelationQuery::buildBuckets() removed | |
| A | ↛ | BaseRelationQuery::getModelKey() removed | |
| A | ↛ | BaseRelationQuery::normalizeModelKey() removed |