Copper-rs 1.2 introduces live telemetry "twins" that can reconstruct a robot’s entire deterministic state remotely over unreliable, one-way links. It leverages the stack’s determinism plus forward error correction (FEC) that sends after-the-fact correction packets, letting a remote twin decode, fix, and reorder a lossy stream. When loss is excessive, the running stack can emit self-healing recovery points to restart the twin at any point. The twin becomes an exact replica of the on-board stack, can produce standard deterministic .copper logs, and exposes a telemetry API and display that surfaces messages, task states, errors, and structured fields for operational monitoring. A demo application and example console with simulated packet loss are provided to exercise the feature.
The release also includes substantial encoding and tooling improvements: copperlist encoding was optimized, boosting logged entropy for a flight controller from 5.9816 to 7.0975 bits/byte and reducing log size by about 52.3% for metadata-dominant robot logs. A new AI/ML Anytime algorithm, cu-anynet, offers fast stereo-to-depth reconstruction, and several ROS 2 compatibility improvements landed. The update targets robust, low-bandwidth telemetry and easier remote observability for deterministic robot stacks.
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