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v0.5.1

rerun-io/rerunv0.5.1Jun 24, 2026by Cuiyus

AI Summary

Focuses on stability improvements, bug fixes, and new features for the vector search library, including external vector sources and zero-copy query paths.

Key Highlights

  • External Vector Source support
  • Zero-Copy Vector Query Path with `VectorViewClause`
  • Index Dirty Status exposure via `is_dirty`
  • Storage MMAP options configuration
  • C API Full-Text Search sub-query support

New Features

  • External vector sources
  • Zero-copy query path
  • Search prefetch configuration
  • Index dirty status inspection
  • Storage MMAP options
  • C API FTS sub-query support
  • Python binding stability improvements
  • Python packaging improvements
  • HNSW persistence fixes
  • Parquet buffer cache refactoring

Full Release Notes

## 🚀 Zvec v0.5.1 Release Notes

### 📦  New Features
* External Vector Source: Added support for using external vector sources, enabling more flexible data ingestion and retrieval workflows. (#490)
* Zero-Copy Vector Query Path: Added `VectorViewClause` to support a zero-copy query path and unified vector query validation. (#478)
* Search Prefetch Configuration: Added support for passing prefetch configuration (`PO` and `PL`) through search parameters. (#482)
* Index Dirty Status: Exposed `is_dirty` through the core `Index` interface so callers can inspect whether an index has pending changes. (#488)
* Storage MMAP Options: Exposed copy-on-write mmap configuration and fixed `MMAP_POPULATE` flag placement. (#480)
* C API FTS Sub-Query Support: Added Full-Text Search support for sub-query usage in the C API. (#520)

### 🐞 Bug Fixes
* Python Binding Stability: Safely validate numpy vector queries, handle missing query-by-id documents, and add missing FTS type annotations to Python stubs and wrappers. (#502, #519, #497)
* Python Packaging: Installed the `_zvec` extension inside the `zvec` package, excluded C++ SDK headers and libraries from wheels, and only bundled the DiskANN plugin on supported platforms. (#511, #509, #510)
* Index and Storage Correctness: Cleaned up RocksDB files on `drop_index` so `create_index` can be repeated, fixed index parameter builder setters, and added coverage for builder behavior. (#485, #504)
* HNSW Persistence: Restored persisted metadata correctly when reopening indexes using the `UniformInt8` quantizer. (#496)
* Parquet Buffer Cache: Refactored parquet buffer cache ownership to avoid lifetime and ownership issues. (#492)
* C API Cleanup: Simplified `convert_c_index_params_to_cpp` by using `IndexParams::clone()`. (#489)
* Misc Fixes: Added a missing include in `block_heap.h`. (#491)

### 🤖 CI & Build Improvements
* Build Requirements: Bumped the minimum required CMake version to 3.26. (#516)
* Nightly Build: Added `aio` to the nightly build. (#469)
* Dependency Bumps: Updated `actions/checkout` from 6 to 7. (#507)

### 👋 New Contributors

Thanks to all first-time contributors in this release:

* @HosniBelfeki (#502)

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Full Changelog: https://github.com/alibaba/zvec/compare/v0.5.0...v0.5.1