Where do I download DIA version 2.3.07

Hi
We have a system that was working with ConnectPort X4. Seems newer ConnectPort X4 gateways do not work.
Looking for an up to date DIA V2.3.07 to rebuild our code. Where can I find a download for DIA V2.3.07?

Thanks

https://www.digi.com/support/productdetail?pid=3658