• Added

• GraphQL

  • feat(graphql): Add support for ef and distance_threshold in generated GraphQL queries for similarity search (#9562).

    WARNING In #9562, the computed distances (automatically returned in the vector_distance field) for cosine and dot product metrics are no longer normalized to [0, 1], but instead return the raw distance computed by the metric.

• Vector

  • feat(vector/hnsw): add per-query ef and distance_threshold to similar_to, fix early termination (#9514)

• Fixed

• Core

  • fix(txn): for lossy indexes, change comparison function to first check the txn cache (#9567)
  • fix(cmd): store correct CA verification status (#9554)
  • fix(zero): make zero shutdown cleanly (#9525)

• Vector

  • fix(vector): Fix similarity-based HNSW search for cosine and dot product metrics (#9559)

    WARNING To benefit from the fix in #9559, you must reindex vector predicates that use cosine or dot product metrics.

• Chore

  • docs: fix typos in comments (#9569)
  • chore(ci): update go toolchain version to v1.25.6 (#9568)
  • fix(ci): update trunk go runtime to match go.mod version (#9575)
  • chore(test): replace deprecated docker struct types in testing harness (#9549)
  • chore(test): unskip previously skipped tests (#9537)
  • chore(core): use Tick() instead of NewTicker() (#9548)

New Contributors

• @mlwelles made their first contribution in https://github.com/dgraph-io/dgraph/pull/9575
• @NAM-MAN made their first contribution in https://github.com/dgraph-io/dgraph/pull/9569

Full Changelog: https://github.com/dgraph-io/dgraph/compare/v25.1.0...v25.2.0