Over the years, Google's Messages app has become the default messaging app for Android-powered devices. Similar to iMessage, it layers the traditional SMS (Short Message Service) protocol beneath a newer internet-based platform, in Android's case, it's called RCS. In XDA-Developers' latest APK teardown, version 8.1.050 of the Google Message app was dissected and strings of text within the code show that the messaging app will gain two features: the ability to pin message threads to the top of a list of conversations, and the ability to “star” individual messages from a conversation thread....
Source: https://www.gsmarena.com/google_messages_prepares_app_to_let_you_pin_conversation_threads_and_favorite_messages-news-49343.php
