Does EG-21 supports MQTT 5?

Does EG-21 supports MQTT 5 ? We were using our modules with cloudmqtt with MQTT version 3 but as cloudmqtt is at end of life and we have to switch to amazon IOT core so we also want to move from MQTT version 3 to MQTT version 5 for future proofing?
Does EG-21 supports MQTT 5 ? If yes will i need to update the firmware of my module?

hi,
What is the current version?