Bot API 5.3

Personalized Commands
• Bots can now show commands that change to fit specific situations – like a user’s language, chat type, or admin status.
• A new Menu button now appears in chats with bots, making commands easier to see and send.

Custom Placeholders
• Bots can display a custom placeholder in the input field. See our latest blog for more on the bot menu and placeholders.

• And more, see the full changelog for details:

https://core.telegram.org/bots/api#june-25-2021