I didn't know they had stopped supporting or producing it. I know they have kind of changed the name. It's now referred to as VoiceRoute UCS (or VoiceRoute Druid UCS). You can check it out here: https://www.voiceroute.net/

Their latest community release is 4.2.0. They have a paid-for subscription release that is v.5.2 I believe. The paid for version comes with some extra management options, some useful call reports, and support.

Did you try calling them?