VectorChord 1.0 Release Notes

VectorChord 1.0 is here. This release delivers much faster PostgreSQL index builds with IVF + RaBitQ, quicker updates, broader architecture support, and a stack of new features since our first release. It’s a major milestone—production-ready and thoroughly tested.

Highlights

We have dramatically optimized index build speed, now capable of building a 100M-vector dataset in 20 minutes on a 16-vCPU machine while sharply cutting memory usage, making index construction in production far more convenient.

What's changed since 0.5

Performance & scalability

• Lock-contention optimizations in index building
• Faster table sampling in index building
• Hierarchical K-means
• Dimension reduction in K-means
• Parallel compacting in index building
• Prints estimated memory usage in index building

Fixes

• Don't use expensive Rayon fold/reduce
• Freespace recycle in vchordg

Full Changelog: 0.5.3...1.0.0