I have a question I am running an older jace with 3.4.43, and with the newest java issue out there I need to do an upgrade on the jace. I am planning on upgrading to the most current version, witch I believe is 3.7. I am running a Lon network with Spyders (pul6438s) to be exact and I am also using Distech ECC-301 controllers. I am not worried about the Distech because it was programmed in Lon Watcher then discovered into Webs, The part I am a little worried about is the Spyders I know I will have to install the current spyder jar but will I have an issue with the older spyders. I have not yet had the pleasure of having to upgrade a jace yet so I'm not for sure what I am in for. One nice thing is I do not have a large database I only running about 10 controllers in the building. I also have a Trane LCI card on a chiller.Any suggestions, or any issue's of doing this would be helpful.