> ## Documentation Index
> Fetch the complete documentation index at: https://motorbridge.seeedstudio.com/llms.txt
> Use this file to discover all available pages before exploring further.

# MotorBridge 0.3.6 Release Test Note

<Note>Source: `release_test_notes/0.3.6.md`</Note>

# MotorBridge 0.3.6 Release Test Note

Date: 2026-05-21

## 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.

## Version Alignment

| Component             | Version  |
| --------------------- | -------- |
| Git release tag       | `v0.3.6` |
| Rust workspace crates | `0.3.6`  |
| Python package        | `0.3.6`  |
| C++ package metadata  | `0.3.6`  |

## Key Changes

### 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.

### Added

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

## Compatibility

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

## See Also

* [Changelog](/source/repository/changelog)