From what I've been finding, OpenELEC-4.2 is what I need to support my decoder.
I believe it would be OpenELEC-Generic.x86_64-4.2.0.tar
Anyone know where I can download a copy
As far as OE versions are concerned. This is as far back as I have archived OpenELEC-Generic.x86_64-4.2.1. Hope this helps.