| ⇢ | A | Mailer added | |
| ⇢ | A | MessageBodyRenderer added | |
| A | ↛ | BaseMessage removed | |
| A | ↛ | SendEvent removed | |
| A | ↛ | Template removed | |
| A | ↛ | Composer removed | |
| A | ↛ | BaseMailer removed | 
| ⇢ | B | MessageBodyRenderer::addToMessage() added | |
| ⇢ | A | Mailer::sendMultiple() added | |
| ⇢ | A | Mailer::createMessage() added | |
| ⇢ | A | Mailer::afterSend() added | |
| ⇢ | A | Mailer::beforeSend() added | |
| ⇢ | A | Mailer::send() added | |
| ⇢ | A | Mailer::compose() added | |
| ⇢ | A | MessageBodyRenderer::__construct() added | |
| ⇢ | A | MessageBodyRenderer::generateTextBodyFromHtml() added | |
| ⇢ | A | MessageBodyRenderer::renderHtml() added | |
| ⋮ | view more | ||
| B | ↛ | Template::compose() removed | |
| A | ↛ | BaseMailer::getComposer() removed | |
| A | ↛ | BaseMailer::beforeSend() removed | |
| A | ↛ | BaseMailer::__construct() removed | |
| A | ↛ | BaseMailer::afterSend() removed | |
| A | ↛ | BaseMessage::setMailer() removed | |
| A | ↛ | BaseMailer::send() removed | |
| A | ↛ | BaseMailer::createMessage() removed | |
| A | ↛ | Template::render() removed | |
| A | ↛ | BaseMailer::sendMultiple() removed | |
| ⋮ | view more | ||