Bot API 7.3

Telegram Business
• Messages sent on behalf of a business account now support url, login_url, and callback_game inline buttons.

Live Locations
• Added support for live locations that can be edited indefinitely.
• Bots can now edit live periods via the new live_period parameter.

General
• Added support for custom emoji in Polls.
• Added the field via_join_request to ChatMemberUpdated, for users whose join request was approved.
• Bots can now detect service messages about background changes in chats via the new chat_background_set field in Message.

• And more, see the full changelog for details:

https://core.telegram.org/bots/api-changelog#may-6-2024

Note: The method getChat now returns the new ChatFullInfo class, which has been split out from Chat.