Questions
- Is the SDK open source?
- No. It is source available. You can read the source and use it under the terms of the licence, but you may not modify it or distribute a modified version.
- Can I evaluate it without a commercial licence?
- Yes. The licence allows you to use the unmodified SDK outside production, and to pass on exact copies of it. Evaluating the SDK needs no agreement with reduktive.
- Can a university or a hobbyist use it?
- Yes, provided the work is not directed towards commercial advantage or payment. There is no separate academic or hobbyist licence; the same terms cover it.
- Can I modify the SDK?
- No. You may not change the source or distribute a changed version. Your own code is not affected by this: software that stays separate from the SDK, and only calls or links against its interfaces, is not a modification of it.
- Can I use the beta in commercial production?
- No. Commercial production use needs a separate written licence from reduktive, and none are issued for prerelease versions. Commercial licensing will follow once the product is formally released.
- Is the beta production-ready or certified?
- No. It is for evaluation. APIs and capabilities may still change, and reduktive does not claim it is production-ready or certified for industrial use.
- Which platforms are supported?
- Linux and Windows, built with GCC, Clang, or MSVC. The SDK needs an application-class processor with a memory-management unit and a full operating system — embedded Linux on an ARM Cortex-A, for example. QNX, INTEGRITY, and VxWorks are expected to be suitable, but no port has been completed or validated. Bare-metal systems and microcontrollers such as Cortex-M are not targets.
- What documentation is available?
- A C++ API reference, generated from the public headers. The repository README covers installation, the four build routes, and running the test suite, and each of the twenty-eight example programs has its own README. A three-volume user guide, Programming OPC UA in Modern C++, will be available shortly: on this website, as a free ebook, and in print from Amazon.
- When will PubSub be available?
- OPC UA PubSub is planned for Q1 CY2027, after the stable v1.0.0 release planned for Q4 CY2026.
- How do I report a problem or a suspected vulnerability?
- Use GitHub Issues for bug reports and evaluation feedback; keep them factual and free of source code. Do not open a public issue for a suspected vulnerability — email security@reduktive.com instead.
These answers describe the licence; they are not the licence. Where the two differ, the licence text controls.