Change log

🔮 Features

Experimental support for distributed deployment - [docs] [issues]
- Cluster topology synchronization via Raft consensus protocol
- Sharding for the collections
- Distributed search and updates
- Cluster status API - #605
Filtering by similarity score - #113
On-disk payload storage - #406
- Store large payload with less RAM usage
On-flight payload indexing - payload indexes are available without segment re-build
- Streaming updates for Numeric, Keyword, and Geo indexes: #575, #592, #593

Faster payload index - #461
Better error reporting
- Return errors as JSON #555
- Better handling of mismatched enums #551
Enable CORS headers for Swagger UI access - #610
HNSW Speed improvements (#508, #513)
Storage optimization
- RocksDB better log rotation - #516
- Disable redundant WAL in RocksDB - #576
- Unite RocksDB columns in single DB - #585
- Parallel segment creation - #598
Better support for Int payload in gRPC - #564

Due to significant changes in payload storage, collections created with the previous engine version are not compatible with the new version. The most straightforward migration approach would be to re-create collections with the latest version from scratch. Breaking changes are required to make our v1.0 release as legacy-free as possible. Hope for your understanding.

We are continuing the development of Distributed Deployment. In next release we will address shard re-balancing and replication issues. Stay tuned and check out our Roadmap for details.