This document discusses LINE's group platform and introduces version 2.0 updates. It defines what a LINE group is as a closed set of friends and friends-of-friends that allows chat, notes, and albums sharing within one chat room. It outlines requests for improvements like more users per group, better member management, multiple chat rooms, chat search, and group application APIs. The new Group 2.0 platform is introduced with 3 member levels (admin, owner, normal), admission control types, and support for multiple sub-chat rooms within one group. An example funny text bot group application is demonstrated that uses APIs to automatically join chats and send messages in response to keywords.