How can I downgrade to Nebula 3.1.1?

I want to use nebula 3.1.1 on android. But when I download the apk of nebula 3.1.1 and install and open it, nebula is keep saying there is an update and you should update to latest version… Is there really no way to downgrade or use Nebula 3.1.1? I want to use xr streaming function.

Hi, it will force you to update the V3.1.1 to the latest version. The XR Streaming feature is still available in the latest Nebula.