Copyright © 2026 Ari Sulistiono.
Unless a file states otherwise, the current ARSAS community-edition source code is licensed under the GNU General Public License, version 3 or any later version (GPL-3.0-or-later). The complete license text is in LICENSE.
When you distribute a covered binary or modified version, you are responsible for satisfying the GPL requirements, including providing the corresponding source code and preserving applicable notices.
A separate written commercial license may be negotiated for use cases that are incompatible with the GPL community license, including proprietary integration, closed-source redistribution, OEM or white-label distribution, project-specific development, warranty, maintenance, training, or priority support.
See COMMERCIAL-LICENSE.md. A commercial option does not remove or reduce the rights already granted for GPL-covered releases.
The ARSAS name, logo, application icon, visual identity, and official-release branding are not granted for unrestricted reuse by the GPL software license. See TRADEMARK.md.
Forks and modified distributions should clearly identify that they are unofficial, should not imply endorsement, and should use distinct branding where required.
Third-party dependencies, frameworks, drivers, protocol fixtures, icons, fonts, or other assets remain subject to their own licenses and notices. Redistributors must review the dependency and release package contents applicable to the version they distribute.
Npcap is not distributed under the ARSAS GPL license. Installation and use remain subject to the Npcap license and the user's local policy.
IEC, IEC 61850, COMTRADE, Windows, .NET, and other names may be trademarks or protected identifiers of their respective owners. Their use in this project describes technical compatibility, protocol scope, or platform requirements and does not imply sponsorship, certification, or endorsement.
ARSAS is an engineering and diagnostic tool. Publication of source code, successful protocol communication, or successful execution of a test does not constitute:
- IEC 61850 conformance certification;
- universal multi-vendor interoperability approval;
- cybersecurity authorization for an operational network;
- functional-safety certification;
- switching authority, proof of isolation, or permission to operate primary equipment.
Users remain responsible for approved procedures, network boundaries, test plans, data handling, equipment condition, and competent authorization.
Historical revisions may retain the terms that applied when those revisions were published. The authoritative explanation is maintained in docs/LICENSING.md. Historical terms do not automatically apply to the current main branch.