A new version of Allo hit this morning, but that’s not nearly as important as the features that were remotely activated by Google in the last day or two. Two features we’ve been expecting have gone live: Web Stickers and @mentions in group chats….

Source: http://www.androidpolice.com/2017/10/07/allo-rolling-web-stickers-group-chat-mentions-v20-prepares-add-advanced-group-management-apk-teardown/