WhatsApp has rolled out significant updates across its platform, aiming to enhance user experience in chats, calls, and channels. Key features include an 'Online' indicator for group chats, a 'Notify for' setting to prioritize notifications, and the ability to scan and send documents directly from iPhones. Users can now also set WhatsApp as their default messaging app and enjoy improved video call quality. Moreover, event creation is now available in 1:1 chats, along with updates for channel admins to engage followers more effectively.