| ⇢ | A | Channels added | |
| ⇢ | A | ChannelNotFound added | |
| A | ↛ | ChannelManager removed | 
| ⇢ | A | SendingNotificationFailed::for() added | |
| ⇢ | A | SimpleMailer::buildHeaders() added | |
| ⇢ | A | EmailMessage::getSender() added | |
| ⇢ | A | EmailMessage::replyTo() added | |
| ⇢ | A | SendingNotificationFailed::getChannelName() added | |
| ⇢ | A | EmailMessage::getReplyTo() added | |
| ⇢ | A | SendingNotificationFailed::getNotification() added | |
| ⇢ | A | EmailMessage::getTo() added | |
| ⇢ | A | SendingNotificationFailed::getRecipient() added | |
| ⇢ | A | EmailMessage::cc() added | |
| ⋮ | view more | ||
| A | ↛ | SimpleMailer::buildMailHeaders() removed | |
| A | ↛ | SendingNotificationFailed::dueTo() removed | |
| A | ↛ | ChannelManager::__construct() removed | |
| A | ↛ | ChannelManager::get() removed | |
| A | ↛ | EmailMessage::body() removed | |
| A | ↛ | EmailMessage::contentType() removed | |