Like Mark, I haven't touched the module in years as it just works. I've read too many z-wave issues with Vera and many other platforms. The solution 123, Mark and I built for Premise uses the elegant VRC0P protocol.
Eventually Mark or I will buy one of the newer z-wave multi-sensors that use secure packets. This is less likely to happen for me unless I move since I use a wired security system I installed. When and if I buy one for myself, I will add the capability for free though and post it
All that is needed is to study how the zwave lock class uses the VRC0P's secure protocol (requires +3 version of the VRC0P), and then follow what Mark did for his sensors. It is much easier to do this when you have the device though.
Newer sensors that use secure packets are going to require some new code more than likely. This shouldn't take more than a 2-4 hours to implement and test. If you absolutely need it to work, PM me and send me a sensor after we agree on an hourly rate. I will not charge anything if I can't integrate the sensor, but I have contacts at Leviton, so even if it is a VRC0P issue (doubt it is), I can request a firmware update. The PM at Leviton and his engineer I talked to in the past are very sharp; they even used the same Premise module for testing purposes when the first VRC0P+3 firmware had some issues. They had the issue fixed in less than a week too, and it has been rock solid for me for years. Compare that to the complaints you see here for other platforms...