Release Date: 6 July 2021
Neo4j 4.0.12 is a maintenance release with many important improvements and fixes. Neo4j 4.0 has reached End of Life.


  • Fix issue with relationship belonging to dense nodes in the high-limit format that could cause corruptions. This affects relationship types with ids larger than 65535.
  • Fix bug where neo4j-admin copy would fail when upgrading from 3.5 store if fulltext indexes where present
  • Fixed a bug where an index scan would be used to solve an OPTIONAL MATCH incorrectly.
  • Don’t overflow on –9223372036854775808. Github issue: neo4j/neo4j#12726
  • Upgrade to Apache Shiro 1.7.1
  • Update jersey to 2.34 to address CVE-2021-28168
  • Update Netty to 4.1.60

Detailed Changes and Docs

For the complete list of all changes, please see the changelog. Look for 4.0 Operations manual here.