Installing ChecMK on ASUS Tinkerboard S with DEBIAN as Linux

Hey Andreas,
thank you very much for your help.
I´ve installed this Version for DEBIAN Stretch-Version and it´s work.

But, how can i update it to the NEW Version of CheckMK?
Because I see, that SNMP v3 is not implemented yet with the security feature, etc.

Best regards

Zhéxué M.