Features
- add max score ratio downscaling for approximate searching on sparse vector @sparknack in #1018
- add DAAT MaxScore support for sparse vector by @sparknack in #1015
- support MV only for HNSW by @chasingegg in #1020
Improvements
- Iterator thread control optimization by @alwayslove2013 in #1008
- memory usage optimization for sparse vector by @sparknack in #1011
Full Changelog: v2.5.1...v2.5.2
Contributors
chasingegg, sparknack, and alwayslove2013