Release Date: 23 January 2026

Release Note for Neo4j 5.26.20 (23 January 2026)

Server

  • Improves reuse of deleted space for big property values in block format, i.e. some large value records have the potential to be split into multiple smaller if there are lots of unused records in that store.
  • Allow transaction termination to happen Async so that it does not block external connections

Security

  • Patch lz4 to version 1.10.1 to resolve CVE-2025-66566

Bundled Packages:

  • labs/apoc-5.26.20
  • lib/neo4j-browser-2026.01.23+0
  • products/bloom-plugin-5.x-2.28.1
  • products/neo4j-genai-plugin-5.26.20
  • products/neo4j-graph-data-science-2.13.7
  • products/neo4j-ops-manager-agent-1.14.1
  • product/fleetManagement-1.1.1
  Please refer to the changelog for full details of the changes.

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