3. In `SentCallback`, update parameter types of `onResult` and `onError`. Inside those two method, you don't need to deserialize anything now, it comes already done.
2. In `editMessageTextAsync`, `editMessageCaptionAsync` or `editMessageReplyMarkupAsync` in `AbsSender`, second parameter should become `SentCallback<Serializable>` due to new return type.
1. In `Message` object, field `new_chat_member` was replaced by `new_chat_members` that is now an array of users.
### <a id="3.0.2"></a>To version 3.0.2 ###
1. If you were using `TelegramLongPollingCommandBot`, add the new [extensions dependency](https://github.com/rubenlagus/TelegramBots/tree/master/telegrambots-extensions) to your maven and fix import statements in your project.