App version no longer supported

Hello, i am using libfb 2.3.5 and having this issue when sending a message to messenger :

```
DEBUG 18:40:09 messenger › sendMessage › Sending Messenger message
TRACE 18:40:09 messenger › sendMessage › sent message info {
TRACE 18:40:09 messenger › sendMessage › sent message info msgid: 1650279543,
TRACE 18:40:09 messenger › sendMessage › sent message info succeeded: false,
TRACE 18:40:09 messenger › sendMessage › sent message info errno: 1545075,
TRACE 18:40:09 messenger › sendMessage › sent message info errStr: 'This app version no longer supports messaging. To continue to send and receive messages, please update your app to a newer version or use the mobile web version of Facebook.',
TRACE 18:40:09 messenger › sendMessage › sent message info isRetryable: false
TRACE 18:40:09 messenger › sendMessage › sent message info }
```

I think that facebook updated something on their side, do we need to change something in the user agent ?

Thanks in advance,