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PKP Moves to GPL v3 Software License

Starting with OJS/OMP 3.2, the Public Knowledge Project (PKP)  is moving from version 2 to version 3 of the GNU General Public License (GPL) for its software releases. The software license is a legal document that safeguards free and open source software to keep it free and available to the community that builds it. The GPL is one of the most common free software licenses.

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Open Journal Systems

OJS is the world's most widely used journal management and publishing system.

Open Monograph Press

OMP establishes an online workspace for editing and publishing books.

Open Conference Systems

OCS offers a complete Web presence for scholarly conferences.

Open Harvester Systems

OHS is an indexing system for OJS, OCS and other online resources.