| ⇢ | A | CssLanguage added | |
| ⇢ | A | ContextualToken added | |
| A | ↛ | MarkerToken removed |
| ⇢ | B | ContextualToken::validate() added | |
| ⇢ | A | ContextualToken::__construct() added | |
| ⇢ | A | CssLanguage::getRules() added | |
| ⇢ | A | ContextualToken::isEnd() added | |
| ⇢ | A | ContextualToken::isStart() added | |
| ⇢ | A | Token::className() added | |
| ⇢ | A | CssLanguage::getIdentifier() added | |
| B | ↛ | MarkerToken::validate() removed | |
| A | ↛ | MarkerToken::__construct() removed | |
| A | ↛ | MarkerToken::isEnd() removed | |
| A | ↛ | MarkerToken::isStart() removed |