| ⇢ | A | CallbackGenerator added | |
| ⇢ | A | StringTemplateLinkGenerator added | |
| ⇢ | A | Mention added | |
| ⇢ | A | MentionExtension added | |
| A | ↛ | CallbackLinkGenerator removed | |
| A | ↛ | StringTemplateLinkGenerator removed | 
| ⇢ | B | MentionExtension::register() added | |
| ⇢ | A | CallbackGenerator::generateMention() added | |
| ⇢ | A | Mention::setLabel() added | |
| ⇢ | A | Mention::findLabelNode() added | |
| ⇢ | A | CallbackGenerator::__construct() added | |
| ⇢ | A | StringTemplateLinkGenerator::__construct() added | |
| ⇢ | A | StringTemplateLinkGenerator::generateMention() added | |
| ⇢ | A | Mention::__construct() added | |
| ⇢ | A | Mention::getLabel() added | |
| ⇢ | A | Mention::getIdentifier() added | |
| ⋮ | view more | ||
| A | ↛ | CallbackLinkGenerator::generateLink() removed | |
| A | ↛ | CallbackLinkGenerator::__construct() removed | |
| A | ↛ | StringTemplateLinkGenerator::__construct() removed | |
| A | ↛ | StringTemplateLinkGenerator::generateLink() removed | |
| A | ↛ | MentionParser::createTwitterHandleParser() removed | |
| A | ↛ | MentionParser::createGitHubHandleParser() removed | |
| A | ↛ | MentionParser::createGitHubIssueParser() removed | |