I’m sure others have noticed that ArduTracker seems to have gone missing since 1.3.39. Anyone know why? Did it just go on travel for the holidays and will be back in the new year?? 
Seriously though, have to keep using 1.3.39 until further notice 
I had been using ArduTracker with an Arduino board with some degree of success and hopefully support can continue for this low cost tracker option.
moot point now… just downloaded the MP release from 5 days ago and ArduTracker option is back in! Thanks whomever did that!