A new "guard_bot_id" field was added to "channelFull" — a bot that guards chat entry. Join requests can now be processed through "JoinChatBotResult" with several outcomes:
× Approved
× Declined
× Queued
× WebView
This means the bot can approve a request, reject it, put it in a queue, or display a web page during the join process — for example, a captcha, verification check, or questionnaire.
@telelakel