WIP

• docs preview at https://python-telegram-bot.readthedocs.io/en/api-5.2/
• new parameter for InlineQueryHandler is up for discussion, see https://t.me/c/1494805131/14941

In addition to a warning about start_parameter getting optional in send_invoice, the two TG-Warnings schould be included in the release notes:

⚠️ WARNING! ⚠️
After the next Bot API update (Bot API 5.3) there will be a one-time change of the value 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.

⚠️ WARNING! ⚠️
Service messages about non-bot users joining the chat will be soon removed from large groups. We recommend using the “chat_member” update as a replacement.

Checklist for PRs

• Added .. versionadded:: version, .. versionchanged:: version or .. deprecated:: version to the docstrings for user facing changes (for methods/class descriptions, arguments and attributes)
• Created new or adapted existing unit tests
• Added myself alphabetically to AUTHORS.rst (optional)

If the PR contains API changes (otherwise, you can delete this passage)

• New classes:

  • Added self._id_attrs and corresponding documentation
  • __init__ accepts **_kwargs

• Added new shortcuts:

  • In Chat & User for all methods that accept chat/user_id
  • In Message for all methods that accept chat_id and message_id
  • For new Message shortcuts: Added quote argument if methods accepts reply_to_message_id
  • In CallbackQuery for all methods that accept either chat_id and message_id or inline_message_id

• If relevant:

  • Added new constants at telegram.constants and shortcuts to them as class variables
  • Added new handlers for new update types
  • Added new filters for new message (sub)types
  • Added or updated documentation for the changed class(es) and/or method(s)
  • Updated the Bot API version number in all places: README.rst and README_RAW.rst (including the badge), as well as telegram.constants.BOT_API_VERSION