Installing xhc-whb04b-6 in LinuxCNC 2.7

I am running a milling machine on LinuxCNC 2.7.14 with an old wireless xhc-wb04 pendant.  
I would like to switch to a new xhc-whb04b-4 pendant, the version with USB cable connection.

I have read the thread  forum.linuxcnc.org/24-hal-components/450...xhc-whb04b-4-pendant

My question, is it possible to install under 2.7 or should I migrate to 2.8 first?

Try it?

But updating is probably worthwhile anyway.