target = "https://www.rfc-editor.org/rfc/rfc9001#section-4.1.2" [[exception]] quote = ''' Additionally, a client MAY consider the handshake to be confirmed when it receives an acknowledgment for a 1-RTT packet. ''' reason = ''' The optional requirement would not yield much benefits and require expensive checks per packet received in the 1-RTT space. The benefits would result in a quicker transition to the Handshake-confirmed state for a Client endpoint in the event of packet loss. However, the delay in transitioning to the Handshake-confirmed state doesn't prevent the Client from making progress (sending application data); so the advantage is small. '''