lancedb

vpython-v0.33.1-beta.2 scope: python Feature

This release adds 1 notable feature for engineering teams evaluating rollout.

Published 9d Vector Databases

✓ No known CVEs patched

✓ No known CVEs patched in this version

Topics

approximate-nearest-neighbor-search image-search nearest-neighbor-search recommender-system search-engine semantic-search

+2 more

similarity-search vector-db

Summary

AI summary

Updates 🐛 Bug Fixes, 🎉 New Features, and rerankers across a mixed release.

Type	Severity	Summary	CVE
Feature	Low	Adds support for datafusion expressions in merge insert predicates (Rust) Adds support for datafusion expressions in merge insert predicates (Rust) Source: llm_adapter@2026-06-04 Confidence: high	—
Bugfix
Bugfix	Medium	Raises ValueError when vector_results list is empty in MRR reranker Raises ValueError when vector_results list is empty in MRR reranker Source: llm_adapter@2026-06-04 Confidence: high	—
Bugfix	Medium	Guards against empty vector_results in RRFReranker.rerank_multivector method Guards against empty vector_results in RRFReranker.rerank_multivector method Source: llm_adapter@2026-06-04 Confidence: high	—
Bugfix	Medium	Routes blob query pandas through scanner in Python client Routes blob query pandas through scanner in Python client Source: llm_adapter@2026-06-04 Confidence: high	—

Full changelog

feat(rust): support datafusion expressions for merge insert predicates by @Ar-maan05 in https://github.com/lancedb/lancedb/pull/3444

fix(rerankers/mrr): raise ValueError on empty vector_results list by @devteamaegis in https://github.com/lancedb/lancedb/pull/3469
fix(rerankers): guard against empty vector_results in RRFReranker.rerank_multivector by @devteamaegis in https://github.com/lancedb/lancedb/pull/3467
fix(python): route blob query pandas through scanner by @BubbleCal in https://github.com/lancedb/lancedb/pull/3491

docs: add cross-SDK parity guidance for code review by @brendanclement in https://github.com/lancedb/lancedb/pull/3464

ci: update python lockfile weekly by @wjones127 in https://github.com/lancedb/lancedb/pull/3498

Weekly OSS security release digest.

The CVE patches and breaking changes that affected production tools this week. One email, every Sunday.

No spam, unsubscribe anytime.

Share this release

Track lancedb

Get notified when new releases ship.

About lancedb

Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

v0.30.0-beta.0 Fixes nested field paths support in native index creation
vpython-v0.32.0 Namespace naming and enterprise integration refactored with breaking changes
v0.29.0 Consolidate namespace related naming and enterprise integration