Python
WinCC OA does not ship a Python runtime. Install CPython yourself. For each operating system, exactly one CPython version is released and validated:
| Operating system | Released CPython |
|---|---|
| Windows Server 2022 | 3.13 |
| Windows Server 2025 (IoT) | 3.13 |
| Windows 11 LTSC | 3.13 |
| RHEL 10 / Oracle Linux 10 | 3.12 |
| Debian 12 | 3.11 |
The listed versions are tested and released. They are also the minimum versions. For information on newer CPython versions, see the Python Manager chapter, section Installation. On Debian 12 the extension is built for CPython 3.11 without the stable ABI and works only with exactly this version.