v0.1.1
alibaba/zvecv0.1.1Jan 27, 2026by JalinWang
AI Summary
Contains breaking changes requiring index rebuilds due to HNSW parameter refactoring. Includes core C++ SDK support, various bug fixes, and performance improvements.
Key Highlights
- HNSW parameter refactoring - clarified 'm' as max neighbors of upper layer
- Changed scaling_factor default from 50 to 'm'
- Flat param string cleanup
- Core C++ SDK support
- Memory optimization for SQL engine when topk is too big
Breaking Changes
- All indexes must be rebuilt after updating - HNSW parameter changes (m as max neighbors, scaling_factor default changed to m)
- Flat param string cleanup requires rebuild
New Features
- Core C++ SDK support
- HNSW parameter clarification and refactoring
- Flat param string cleanup
- Memory reserve size optimization for SQL engine
- MemoryReadStorage fix for MemoryBlock reads
Full Release Notes
## Breaking Changes **Rebuild Required**: After updating to this version, all indexes must be rebuilt. * refactor: clarify HNSW 'm' as max neighbors of upper layer by @JalinWang in https://github.com/alibaba/zvec/pull/12 * refactor: set HNSW 'scaling_factor' default to 'm' instead of 50 by @iaojnh in https://github.com/alibaba/zvec/pull/17 * refactor: flat param string cleanup by @JalinWang in https://github.com/alibaba/zvec/pull/28 * fix: flat support more segments by @JalinWang in https://github.com/alibaba/zvec/pull/32 ## What's Changed * Chore/add codecov badge by @Cuiyus in https://github.com/alibaba/zvec/pull/9 * fix(sqlengine): reduce memory reserve size when topk is too big by @egolearner in https://github.com/alibaba/zvec/pull/10 * fix: fix cpu detect by @richyreachy in https://github.com/alibaba/zvec/pull/14 * chore(ci): fix ci serurity and add build wheels for test pypi by @Cuiyus in https://github.com/alibaba/zvec/pull/16 * minor: update Readme with discord link and benchmarks by @zhourrr in https://github.com/alibaba/zvec/pull/19 * chore(ci): modify setuptools cm for test pypi and support cancel in progress by @Cuiyus in https://github.com/alibaba/zvec/pull/21 * fix: fix default m by @egolearner in https://github.com/alibaba/zvec/pull/20 * chore: support build arrow with debug by @egolearner in https://github.com/alibaba/zvec/pull/11 * upd mmap segment_meta_capacity by @iaojnh in https://github.com/alibaba/zvec/pull/24 * fix: fix and refact segment fetch perf by @chinaux in https://github.com/alibaba/zvec/pull/26 * feat: refact cpp sdk by @feihongxu0824 in https://github.com/alibaba/zvec/pull/27 * minor: fix some debug strings by @zhourrr in https://github.com/alibaba/zvec/pull/31 * fix: remove empty files by @richyreachy in https://github.com/alibaba/zvec/pull/33 * fix(docs): update discord invite link in readme by @Cuiyus in https://github.com/alibaba/zvec/pull/35 * refactor: flat param string cleanup by @JalinWang in https://github.com/alibaba/zvec/pull/28 * fix: flat support more segments by @JalinWang in https://github.com/alibaba/zvec/pull/32 * fix: local_builder DisableIdMap=true auto set streamer params by @JalinWang in https://github.com/alibaba/zvec/pull/34 * hot fix: local builder should use new flat param string by @JalinWang in https://github.com/alibaba/zvec/pull/37 * feat: support core cpp sdk by @feihongxu0824 in https://github.com/alibaba/zvec/pull/30 * Update README.md by @zhourrr in https://github.com/alibaba/zvec/pull/36 * fix: fix MemoryReadStorage read by MemoryBlock by @egolearner in https://github.com/alibaba/zvec/pull/38 * hotfix: ci will build tools & fix local_builder by @JalinWang in https://github.com/alibaba/zvec/pull/39 ## New Contributors * @egolearner made their first contribution in https://github.com/alibaba/zvec/pull/10 * @richyreachy made their first contribution in https://github.com/alibaba/zvec/pull/14 * @JalinWang made their first contribution in https://github.com/alibaba/zvec/pull/12 * @iaojnh made their first contribution in https://github.com/alibaba/zvec/pull/17 * @chinaux made their first contribution in https://github.com/alibaba/zvec/pull/26 **Full Changelog**: https://github.com/alibaba/zvec/compare/v0.1.0...v0.1.1