Bot API 5.5 • Bots can now contact users who sent a join requ | BotNews
Bot API 5.5
• Bots can now contact users who sent a join request to a chat where the bot is an admin – even if the user never interacted with the bot before. • Added support for protected content in groups and channels. • Added support for users posting as a channel in public groups and channel comments. • Added support for mentioning users by their ID in inline keyboards. • 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.