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Source: release_test_notes/0.3.6.md

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MotorBridge 0.3.6 Release Test Note

Date: 2026-05-21

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Summary

RobStride scan reliability on Windows PCAN while keeping Linux SocketCAN behavior stable. Aligns the Python CLI and WebSocket gateway scan implementations around sequential, exact host/feedback ID probing.

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Version Alignment

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Key Changes

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Fixed

  • Python CLI RobStride scan opens only one controller at a time, preventing multiple PCAN receive workers from competing on the same Windows CAN channel.
  • Python CLI scan cleanup no longer calls close_bus() on unbound probe controllers, removing the misleading controller has no motor scan footer.
  • WebSocket gateway RobStride scan now probes host/feedback IDs sequentially and exactly with ping_with_host_id() / get_parameter_with_host_id().
  • WebSocket gateway TCP accept now uses the standard listener before handing sockets to Tokio/Tungstenite, fixing Windows loopback clients that connected at TCP level but timed out during WebSocket handshake.
  • Already discovered motor IDs are skipped in later host-id passes.

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Added

  • WebSocket gateway responds to {"op":"capabilities"} with gateway_version, vendor support, and batch_scan / robstride_exact_host_scan flags.

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Compatibility

  • Python binding public API and CLI entrypoints remain compatible.
  • C ABI symbol names and signatures remain stable.

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See Also