Invite links have been improved. You can now choose between using temporary links or permanent links.
Free chats now use a static join button instead of a self-destructing one.
The API method /getSubscribers now includes "membership_start_time" and "membership_end_time".
The API method /getPlans now includes "options" object, which contains information about the parameters of the plan.
Access tokens-only plans are no longer displayed in the /subscribe menu - they can only be purchased using a direct link.
When sending a /broadcast that contains a poll, the bot will forward the poll instead of creating a new poll for each recipient - this is to see all the answers, not just your own.