V4 now supports Actions. We have also tested it in XR, and it works without issues.
You can check out an example demo here:
https://forum.convai.com/t/demo-it-sees-navigates-converses-acts-spatially-aware-ai-npc-demo-in-xr-powered-by-convai/6190
You can download the latest Unreal Engine V4 plugin here:
https://github.com/Conv-AI/Convai-UnrealEngine-SDK-V4/releases