Hi,I am often using Qt for small R&D for scientists, and we have requests about Modbus Client/Server to communicate with industrial devices. Qt introduce the serialbus (Can & Modbus) in 5.8, the version just after the stretch release.I am not very familiar with backports and i don't known how much time and effort it takes. Are you concidering to backport the version 5.11 (buster) in stretch backports ?