SigmaDSPstudio 3.15 download?

I've got a small problem. I need to update my Sigmastudio install to v3.15 to be able to use one of the newer DSPs, but when I go to analog.com I find there's no 32bit versions available anymore 🙁. This is a pain as a) I don't have spare funds to buy a new PC (can't update this one due to custom apps) and b) I hear rumours of backwards non-compatibility between 64 and 32 bit versions which would stop me re-using/rehashing some of my old designs which would save a heap of time.... I've raised it with AD on their "engineer zone" , but had nothing back: looking at the list of unanswered posts it looks like no-one from AD has answered anything on there for at least a week, so I'm not holding my breath 😡 Does anyone have or know where I can find a download please?
 
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