Release Notes: Graph Data Science 2.27

Release Date: 6 March 2026

GDS 2.27 is compatible with Neo4j 2026.02. For GDS compatibility with previous releases, please use GDS Compatibility Table.

New Features

• None.

Bug fixes

• Fixed a bug where the Leiden algorithm would throw an error when operating on a graph where no swaps would be done in the first iteration.
• Fixed a validation bug, where gds.graph.generate would allow for invalid averageDegree + nodeCount combinations.

Improvements

• The following procedures stop faster when a transaction terminates:

  • gds.bridges.*
  • gds.degree.*
  • gds.articulationPoints.*
  • gds.scaleProperties.*
  • gds.kcore.*
  • gds.sllpa.*
  • gds.prizeSteinerTree.*
  • gds.bellmanFord.*
  • gds.modularity.*
  • gds.hits.*
  • gds.allShortestPaths.delta.*

• Minor improvements in allocated memory by gds.nodeSimilarity.* under certain situations.

• Some unnecessary computations during similarity distribution computations are removed for:

  • gds.knn.stats
  • gds.knn.filtered.stats
  • gds.nodeSimilarity.stats
  • gds.nodeSimilarity.filtered.stats

• Performance improvements when running Yen’s shortest path algorithm on undirected or inverse-indexed graphs.

Other changes

• None.