Release Date: 5 August 2025

Release Note for Neo4j 2025.07.01 (5 August 2025)

This is a hotfix release

Critical Bug Fix

Fixed Driver Connection Issues with Bolt Protocol 6.0

This hotfix resolves a connectivity regression introduced in version 2025.07.0 that prevented connections from drivers attempting to negotiate Bolt protocol version 6.0.

What was affected:

• Applications using official driver versions 6.0.0-alpha1 and above experienced connection failures
• Connections would fail during the initial handshake process
• Depending on the driver implementation, applications would either hang indefinitely or receive connection errors

What we fixed:

• Corrected protocol version negotiation to only offer properly registered and supported versions
• Restored reliable connectivity for all affected driver versions

Action required:

We recommend upgrading to version 2025.07.1 immediately if you experienced connection issues after upgrading to 2025.07.0, particularly if you’re using driver versions 6.0.0-alpha1 or higher.

Additional notes:

• This fix is backward compatible and does not require changes to your application code
• Drivers older than version 6.0.0-alpha1 were not affected by this issue

Please refer to the changelog for full details of the changes.  

Deprecations

• For all server changes and deprecations, see Operations Manual -> Changes, deprecations, and removals in Neo4j 2025.x
• For all Cypher language changes, deprecations, and compatibility, see 
  • Cypher 5 Manual -> Deprecations, additions, and compatibility.
  • Cypher 25 Manual -> Deprecations, additions, and compatibility

 

Bundled products

The following products have been included in the distribution – available in /products directory unless stated otherwise – and are fully compatible with this release. 

• APOC Core 2025.07.1 – The most popular community library developed for the database, is fully supported (included in Labs directory).
• Bloom 6.x-2.23.0 – A beautiful and expressive data visualization tool to quickly explore and interact with Neo4j’s graph data platform – no coding required. Please refer to the release notes for details.  (Requires a License)
• Browser 2025.07.1  – Neo4j Browser is a tool for developers to interact with the graph. It is the default interface for both Enterprise and Community Editions (included in the /libs directory) of the Neo4j database. 
• Neo4j GenAI Plugin 2025.07.0 -The GenAI plugin delivers integrations with various generative AI services, including support for transforming text data into vector embeddings using VertexAI, OpenAI, or Amazon Bedrock. The resulting vector embeddings can be used together with Neo4j’s vector search indexes.
• Neo4j Graph Data Science 2.20.0 is a compatible version of the connected data analytics and machine learning platform that helps you understand the connections in big data to answer critical questions and improve predictions. Please refer to the release notes for further details. (GDS Enterprise requires a License. )
• Neo4j Ops Manager 1.13.0 is a UI-based tool that enables Administrators to operate and observe all of their Neo4j Database Management Servers. Now includes support for Neo4j’s any-to-any upgrade. Please refer to the release notes for details. (Included in Enterprise).