i try latest demo \Demos\50.Other\01.Telegram_Client the tdlib version 1.6.4?
{"@type":"messageText","text":{"@type":"formattedText","text":"You are using an outdated app that is no longer supported. To access your messages, please update your app to the latest version. If you don\u2019t know how to update your app, go to https://telegram.org/dl","entities":[{"@type":"textEntity","offset":91,"length":37,"type":{"@type":"textEntityTypeBold"}},{"@type":"textEntity","offset":178,"length":23,"type":{"@type":"textEntityTypeUrl"}}]}}}
{"@type":"messageText","text":{"@type":"formattedText","text":"You are using an outdated app that is no longer supported. To access your messages, please update your app to the latest version. If you don\u2019t know how to update your app, go to https://telegram.org/dl","entities":[{"@type":"textEntity","offset":91,"length":37,"type":{"@type":"textEntityTypeBold"}},{"@type":"textEntity","offset":178,"length":23,"type":{"@type":"textEntityTypeUrl"}}]}}}