v0.47.2

[mqtt5 0.47.2] - 2026-10-08

Fixed

• The broker closes a QUIC connection after a malformed packet on any path (#192). A malformed packet on the control stream ended the MQTT session but left the QUIC connection open until the idle timeout. On a client data stream only that stream was stopped, with ERROR_IMCOMPLETE_PACKET (0xBA), and in a datagram the packet was logged and dropped; in both cases the session carried on. A malformed packet on the control stream, a data stream or in a datagram now closes the connection with ERROR_PROTOCOL_L0 (0xB4), as a malformed packet closes the socket over TCP. A PUBLISH to a topic name with wildcards gets the same code. Empty datagrams and datagrams whose first byte is 0x00, which MQoQ reserves for non-MQTT payloads, are still ignored. When the control stream ends for any other reason, the broker waits up to one second for the client to close the connection, so a DISCONNECT or CONNACK it has just sent is not discarded, and then closes it with NO_ERROR after a normal end or ERROR_UNSPECIFIED (0xB2) otherwise. A client that resets or finishes one of its data streams still keeps its session.