INT v2.1 implementation

Hi everybody.
I am new to p4 and I am gonna start a project which requires me to emulate a network with BMv2 using INT-MX packets. So is there an implementation of Inband Network Telemetry (v2.1)? I already found this one: GitHub - GEANT-DataPlaneProgramming/int-platforms: In-band Telemetry (INT) implementation for bmv2 and TOFINO platforms. but unfortunately it doesn’t have the latest version (thus INT-MX is not yet implemented).
Thank you for your time and help!