the current version is SDM 1.50
It is, but that does not affect the code for the synching of multiple cameras that you are interested in.
That has not changed.
In fact, when the next source code is uploaded it will make it more complicated because it supports the Ricoh switch and ordinary switch without scripts AND the ordinary switch with scripts.
So many people are making demands on my time that some things are delayed and will just have to wait.