Today's update allows you to add entire group chats as exceptions to any privacy settings. Settings will adapt as people join or leave the groups.

We've also added a new privacy setting for Who Can See My Phone Number.

Channel admins can now link a discussion group to their channel. And developers can make bots that can seamlessly authorize you on web services.

Any public channel can now be viewed from the web, even without a Telegram account.

Read more on our blog:
https://telegram.org/blog/privacy-discussions-web-bots