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.
1. Replace `BotSession.close()` by `BotSession.stop()`.
### <a id="2.4.4.4"></a>To version 2.4.4.4 ###
1. All calls to `editMessageText`, `editMessageCaption` or `editMessageReplyMarkup` in `AbsSender` return value is changed to `Serializable`
2. In `editMessageTextAsync`, `editMessageCaptionAsync` or `editMessageReplyMarkupAsync` in `AbsSender`, second parameter should become `SentCallback<Serializable>` due to new return type.