The latest milestone release of Neo4j 1.9 consists of many improvements to the internals of the world’s leading graph database. Some of the featured improvement areas are:

Cypher – faster query execution for most use-cases while using less memory

High Availability Cluster – rolling upgrades from 1.8 include improvements in cluster membership protocol and upgrading test-clusters without any downtime

Kernel – several performance improvements including a new OrderByTypeExpander, which keeps the ordering of type and direction during the traversal

Server – JavaScript traversals (exposed through the Server REST API) are now sandboxed to be more secure

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