Bot API 7.0

Announcing our biggest Bot API update yet!

Reactions
• Introducing full reaction support for bots.
• Bots can now react to messages with setMessageReaction.
• Message reactions now generate updates for bots.
• Added the available_reactions field to the class Chat.

Replies 2.0
• Bots can now reply to messages in other chats or topics.
• Added the ExternalReplyInfo class, to track replies across chats.
• The new class ReplyParameters replaces individual reply options in all relevant methods and lets bots quote parts of any message.
• The new field quote of the class Message lets bots detect incoming quoted text.

Link Preview Customization
• Bots can now set a custom URL to generate link previews in outgoing messages.
• Added support for custom size and position of link previews.
• Added the class LinkPreviewOptions to support these new options.

Batch Actions
• Bots can now delete multiple messages in a single request via deleteMessages.
• Bots can now forward or copy multiple messages in a single request via the respective forwardMessages and copyMessages methods.

Boosts & Giveaways
• Added support for Giveaway messages, allowing bots to detect their creation and completion.
• Added updates about chat boost changes via the new classes ChatBoostUpdated and ChatBoostRemoved.
• Bots can now see if a boost came from a premium sub, a gift code, or a giveaway, as well as check all active user boosts via getUserChatBoosts.

General
• Blockquotes are now supported in MarkdownV2 and HTML parse modes.
• Web Apps won't close when calling openTelegramLink.
• Web Apps can now toggle the visibility and on-click behavior of the Settings Button.
• Bots can now request multiple users, see KeyboardButtonRequestUsers.
• The class Chat has new fields holding profile and background colors, custom emoji, and more.


• And a great deal more. See the full changelog for details:

https://core.telegram.org/bots/api-changelog#december-29-2023

Happy Holidays from the Telegram Team 🎆