Release Date: 11 March 2020
Neo4j 3.5.16 is a maintenance release with many important improvements and fixes.


  • Add jvm argument, -Dorg.neo4j.kernel.impl.storemigration.participant.StoreMigrator.migration_threads=, to set number of threads used to read and write when upgrading store. By setting a lower value the contention on disk can be reduced. Default value is the number of processors available to the process.
  • Fix bug where store upgrade could see IndexOutOfBoundsException when upgrading store that was much larger than available memory

Detailed Changes and Docs

For the complete list of all changes, please see the changelog. Look for 3.5 Operations manual here.


When upgrading to Neo4j 3.5 for the first time, be sure to read the current upgrade instructions in the Neo4j Operations Manual, as there are additional steps and considerations.