Release Notes: This release adds cypher math operations and a new cache option for enterprise systems which offers finer control over memory use.
Release Notes: Reduced size on disk for the property store; fewer I/O operations. Improved logging. HTTP request-level authorization. Many additions to the Cypher query language, such as optional relationships in match clauses, new predicates and functions, parameterized queries, shortest path algorithm, and a new Cypher cookbook in the documentation. An improved and faster High Availability protocol that also handles unpredictable hardware better. The Web-based administration tool now offers style profiles, making it easy to create domain-specific visualizations.
Release Notes: The license for Neo4j Community Edition was changed to GPLv3, the maximum number of entities was increased, and short strings are stored more efficiently. Both nodes and relationships can be indexed using the new integrated index.
Release Notes: Major features include the Neo4j High Availability Cluster and the RESTful Neo4j Server.