What's New in Holoscan 4.0: The Deploy Stack for Physical AI & Raw2Insights Sensors

Written March 10, 2026 by Jay Carlson

Holoscan 4.0 is the first major release that tackles the challenges of deploying AI and accelerated compute for physical AI systems, including humanoid and industrial robotics, automotive, laboratory, and active-scanning sensor systems.

GPU Resident Graphs

Holoscan 4.0 introduces the ability to execute entire compute graphs on the GPU. Rather than repeatedly moving execution between CPU and GPU, GPU Resident Graphs run end-to-end on the GPU — all with no CPU scheduling. This dramatically reduces jitter to improve determinism, and can also reduces the API surface area needed for testing highly-regulated products.

GStreamer Interoperability

Many camera and media pipelines rely on GStreamer. Developers can now pass data between Holoscan graphs and Gstreamer pipelines — in both directions — opening up a rich ecosystem of existing multimedia codecs, sources, sinks, and streaming.

EtherCAT support

Holoscan now includes an EtherCAT, enabling integration with industrial robotics and motion control: robot joint controllers, motor drives, industrial actuators, and high-precision motion systems. That integration makes it possible to build applications that combine AI perception with deterministic robotic control.

Raw Radar PVA Processing

For raw radar sensing use cases on edge devices like the NVIDIA Jetson, Holoscan supports offloading processing to the PVA. The pipeline is composed of multiple intermediate classical radar signal processing stages, which allows access to the rich intermediate data essential to development of the next-gen AI models for RADAR perception.

Pose Tree

Many physical systems depend on complex spatial relationships between sensors, robots, and the environment. Holoscan now includes native Pose Tree support to manage coordinate transforms between sensors, robot links, tools, and world frames.

Built-In Holoscan Sensor Bridge Container Support

Holoscan Sensor Bridge is now available in the Holoscan container to enable developers to rapidly build HSB-based applications without requiring additional setup.