Best to call Rad Elec, but they have always sent a link when they have a software update for Radon Report Manager. My version is 3.8.32 and I have always updated when they send a link.
Hi Dan, the latest version is 4.0.58. Feel free to email Lorin Stieff directly at: lcstieffatradelecdotcom . He would be happy to send the info over to you, I'm sure.