nRF9160 MQTT standard version and QoS level?

[Liza]

Hi,

I use the nRF9160 with SDK2.5.0.

Which MQTT version (3.1, 3.1.1 and 5.0) does it support? And which QoS level (0, 1 and 2) does it support? 

Does it support QUIC as an additional transport protocol to enhance performance and reliability over unreliable networks?

Thanks,

Liza

[Liza]

And which TLS version (e.g. TLS 1.2, 1.3) does it support? 

[dejans]

Hi,

Documentation provides information about supported protocols, MQTT version and MQTT QoS. There is neither support for TLS v1.3 in secure sockets nor QUIC protocol support in NCS v2.5.0. For QUIC protocol support, there is this enhancement proposal.

Best regards,
Dejan