library Currently supports only MQTT Version 5 ?

We are currently running an MQTT broker on an ESP32 device that supports only MQTT 3. Additionally, many libraries we rely on are outdated or no longer actively maintained. **any guidance on converting MQTT 5 messages to MQTT 3,** ### Missing Implementation as the current library lacks support for bidirectional communication. Notably, the publish method is missing, which is crucial for effective MQTT communication.