I am still using a Bel STiR+ that I installed back in 2013. My subscription ran out ages ago but thought of renewing it again. I believe I'm still using Detector Tools 1.5.17. I think the latest STABLE version is 1.5.42? Is that right? I know there are versions after that but saw some posts indicating issues. Also, does anyone know the difference between standard and pro? Can pro be used with my STiR+ or is that model too old for this software release? Just curious. Thanks.