Looks like we could make towel-mode even better!
Bot API 5.5
β’ Bots can now contact users who sent a join request to a chat where the bot is an admin β even if the user never interacted with the bot before.
β’ Added support for protected content in groups and channels.
β’ Added support for users posting as a channel in public groups and channel comments.
β’ Added support for mentioning users by their ID in inline keyboards.
β’ And more, see the full changelog for details:
https://core.telegram.org/bots/api#december-7-2021
Warning: As previously announced, user identifiers can now have up to 52 significant bits and require a 64-bit integer or double-precision float type to be stored safely.