Please login or sign up. You may also need to provide your support ID if you have not already done so. Neo4j is an open-source graph database, implemented in Java. The community edition of the database is licensed under the free GNU General Public License (GPL) v3. The additional modules, such as online backup and high availability, are licensed under the free Affero General Public License (AGPL) v3. The database, with the additional modules, is also available under a commercial license, in a dual license model. Neo4j comes in 3 editions: Community, Enterprise, and Government. It is dual-licensed: GPLv3 and AGPLv3 / commercial. The Community Edition is free but is limited to running on 1 node only due to the lack of clustering and is without hot backups.The Enterprise Edition (which requires buying a license unless the application built on top of it is open-sourced) unlocks these limitations allowing for clustering, hot backups and monitoring. The Government Edition extends the Enterprise Edition adding additional government specific services including FISMA related certification and accreditation support. Please login or sign up. You may also need to provide your support ID if you have not already done so.
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