Do telegram chat IDs stay the same when converting to a supergroup?

Question

On Telegram, every group has a chat-id that my bot saves whenever it is added to a group.

If an owner of a group converts it to a supergroup, will the I

Answer 1

After testing it out for myself, the chat-id does change on migration to a supergroup.

However I found the following way, using python-telegram-bot to keep your chat-ids updated:

def migchat(bot, update):
  oldchatid = update.message.migrate_from_chat_id
  newchatid = update.message.chat.id
  # process those values as needed (e.g. update a database)

dispatcher.add_handler(MessageHandler(Filters.status_update.migrate, migchat))

This uses the Filters submodule to call migchat whenever a chat is being migrated.

This is how the JSON response of the message from the /getUpdates call looks like: