| ⇢ | A | SingleValueDataSet added | |
| A | ↛ | MixedDataSet removed | 
| ⇢ | A | SingleValueDataSet::hasAttribute() added | |
| ⇢ | A | SingleValueDataSet::getAttributeValue() added | |
| ⇢ | A | SingleValueDataSet::__construct() added | |
| ⇢ | A | SingleValueDataSet::getData() added | |
| D | ↘ | F | Validator::validate() got worse | 
| A | ↛ | MixedDataSet::getData() removed | |
| A | ↛ | MixedDataSet::getAttributeValue() removed | |
| A | ↛ | MixedDataSet::__construct() removed | |
| A | ↛ | MixedDataSet::hasAttribute() removed |