| ⇢ | A | Progress added | |
| ⇢ | A | Select added | |
| ⇢ | A | Slot added | |
| ⇢ | A | Textarea added | |
| ⇢ | A | Button added | |
| ⇢ | A | Canvas added | |
| ⇢ | A | Details added | |
| ⇢ | A | Dialog added | |
| ⇢ | A | Fieldset added | |
| ⇢ | A | Menuitem added | |
| ⋮ | view more | ||
| ⇢ | C | Option::removeInvalidChildren() added | |
| ⇢ | B | Textarea::getAllowedAttributes() added | |
| ⇢ | B | Optgroup::removeInvalidChildren() added | |
| ⇢ | B | Option::removeInvalidSelf() added | |
| ⇢ | B | Select::removeInvalidChildren() added | |
| ⇢ | A | Textarea::removeInvalidChildren() added | |
| ⇢ | A | Button::getAllowedAttributes() added | |
| ⇢ | A | Menuitem::getAllowedAttributes() added | |
| ⇢ | A | Meter::getAllowedAttributes() added | |
| ⇢ | A | Meter::removeInvalidSelf() added | |
| ⋮ | view more | ||
| C | ↘ | D | Attribute::clean() got worse |
| A | ↛ | Input::removeInvalidSelf() removed | |