Transferring ownership of bots
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Along with the update Bot API to version 5.0, it became possible to transfer ownership of a bot from one account to another.

For transmission:
- Two-factor authentication must be enabled at least 7 days prior to transfer. The password should not change during this time.
- The session from which the transfer takes place must exist for at least 24 hours.
- The user to whom the transfer is carried out must write to the bot and unblock it (if the bot was blacklisted by the user).

The transfer is carried out through the bot @botfather.

#BotAPI

Bot API has been updated to version 5.1

What's new:
— Added updates about member status changes in chats: my_chat_member and chat_member.
— Support for improved invite links.
— Basic info about voice chats.
— And more, read the full changelog.

Warning: After one of the upcoming Bot API updates, user identifiers will become bigger than 2^31 - 1 and it will be no longer possible to store them in a signed 32-bit integer type. User identifiers will have up to 52 significant bits, so a 64-bit integer or double-precision float type would still be safe for storing them. Please make sure that your code can correctly handle such user identifiers.

core.telegram.org/bots/api-changelog#March-9-2021

#update #BotAPI

Bot API was updated to version 5.2

What's new:
- Payments 2.0 support
- Inline mode payments support
- Groups, supergroups, and channels payments support
- Optional tips support for sendInvoice method
- Now you can optionally allow paying for forwarded invoices
- Added chat_type field in inline mode, so a bot can identify from what kind of chat a request comes from
- Added scheduled Voice Chat message type
- Fixed mistakes in documentation

Important changes:
— In Bot API v5.3 a one-time change will happen which will update unique identifiers for photos
— Soon in large chats, join messages won't be displayed

Full changelog on the website.

#update #BotAPI

Bot API was updated to version 5.3

What's new?
Personalized Commands
— Bots can now show lists of commands tailored to specific situations - including localized commands for users with different languages, as well as different commands based on chat type or for specific chats, and special lists of commands for chat admins.
— Added the class BotCommandScope, describing the scope to which bot commands apply.
— Added the parameters scope and language_code to the method setMyCommands to allow bots specify different commands for different chats and users.
— Added the parameters scope and language_code to the method getMyCommands.
— Added the method deleteMyCommands to allow deletion of the bot's commands for the given scope and user language.
— Improved visibility of bot commands in Telegram apps with the new 'Menu' button in chats with bots, read more on the blog.

Custom Placeholders:
— Added the ability to specify a custom input field placeholder in the classes ReplyKeyboardMarkup and ForceReply.

And More:
— Improved documentation of the class ChatMember by splitting it into 6 subclasses.
— Renamed the method kickChatMember to banChatMember. The old method name can still be used.
— Renamed the method getChatMembersCount to getChatMemberCount. The old method name can still be used.
— Values of the field file_unique_id in objects of the type PhotoSize and of the fields small_file_unique_id and big_file_unique_id in objects of the type ChatPhoto were changed.

Full changelog on the website.

#update #BotAPI

Bot API was updated to version 5.4

What's new:
— Added the the parameter creates_join_request to the methods createChatInviteLink and editChatInviteLink for managing chat invite links that create join requests.
— Added the fields creates_join_request and pending_join_request_count to the class ChatInviteLink.
— Added the field name to the class ChatInviteLink and the parameters name to the methods createChatInviteLink and editChatInviteLink for managing invite link names.
— Added updates about new requests to join the chat, represented by the class ChatJoinRequest and the field chat_join_request in the Update class. The bot must be an administrator in the chat with the can_invite_users administrator right to receive these updates.
— Added the methods approveChatJoinRequest and declineChatJoinRequest for managing requests to join the chat.
— Added support for the choose_sticker action in the method sendChatAction.

Full changelog on the website.

#update #BotAPI

Bot API was updated to version 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.

See the full changelog for details on the official website.

#update #BotAPI

Bot API was updated to version 5.6

— Improved support for Protected Content.
— Added the parameter protect_content to the methods sendMessage, sendPhoto, sendVideo, sendAnimation, sendAudio, sendDocument, sendSticker, sendVideoNote, sendVoice, sendLocation, sendVenue, sendContact, sendPoll, sendDice, sendInvoice, sendGame, sendMediaGroup, copyMessage, forwardMessage to allow sending messages with protected content to any chat.
— Added support for spoiler entities, which will work in Telegram versions released after December 30, 2021. Older clients will display unsupported message.
— Added new MessageEntity type “spoiler”.
— Added the ability to specify spoiler entities using HTML and MarkdownV2 formatting options.

See the full changelog for details on the official website.

#update #BotAPI

4GB files support for bots

It was announced on the official Bot API channel that it will no longer be possible to store the value of file_size fields in a signed 32-bit integer type.

This change is necessary to support 4GB files which Telegram Premium users will be able to upload.

The Telegram Info editors remind you that non-updated bots and clients cannot work with files of the new size.

#BotAPI

Bot API was updated to version 6.1

What's new:
— To support 4GB files uploaded by premium accounts, file_size in most media classes can no longer be stored in a signed 32-bit integer type.
— Bots can now distinguish premium Users and Stickers with the new respective fields is_premium and premium_animation.
— Added several methods and fields to the class WebApp to handle API version, additional colors, haptic feedback and more.
— Added the events backButtonClicked, settingsButtonClicked and invoiceClosed.
— Updated ThemeParams, MainButton and WebAppInitData with new fields and methods.
— Bots can now process join requests created without an invite link — they will still receive a chat_join_request update.
— HTTP links for invoices can be generated with the new createInvoiceLink method.
— Bots can now detect when a user added them to their attachment menu via the new added_to_attachment_menu field. Integrated bots can now also be used in groups, supergroups and channels.

See the full changelog for details on the official website.

#update #BotAPI