Okay, I've recently upgraded all my cards that were lagging on software versions, but now my boss is upset because I upgraded to the newest releases that I've heard people refer to as stable, rather than the absolute bleeding edge. So I told him I'd ask around, and see if I could get other people's opinion of the latest firmware. Right now we've got: HiperDSP: 3.5.105 HiperARC: 5.3.3 HiperNMC: 8.6.3 NMC(486): 7.1.8 We don't have any problems as far as I know--except possibly one with NFAS, but I think that's really a telco issue--but my boss would like to upgrade. So I'm looking for opinions about the TCS 4.5 service releases and/or TCS 4.7. Can anyone tell me if the following versions have worked well/failed spectacularly for them? HiperDSP: 3.5.109, 3.7.4 HiperARC: 5.3.110, 5.7.2 HiperNMC: 10.1.5