@biffhero List of sketches on the folder eg Node8BoilerT3vWNrtc3 tells me it's Node 8, BoilerT tells me it's the Central Heating Boiler temperature monitor, 3vWN is the voltage and Node device, rtc means it has one, and finally the version number 3.
By embedding the sketch name and version number in the sketch, Domoticz always holds the current sketch and version it's programmed with, as at one point I was switching programs around and lost track which one was on it.
So, some old sketches I retain as they feature a different technique or method which may come in useful later, but usually old versions are deleted if satisfied with the final.
It's easy enough to find the sketch in the folder as they follow in sequence.
Just my methodology but hope this helps...
