# 许可证
注解
All code contributions must be made under the permissive BSD 3-clause license (opens new window) and must not impose any further constraints on its use.
This page documents the licenses of various components in the system.
- PX4 飞行栈 (opens new window) — BSD
- PX4 中间件 (opens new window) — BSD
- Pixhawk 硬件 (opens new window) — CC-BY-SA 3.0
- 骁龙硬件 — 高通专有