It is a pleasure to inform you that a new version of the Apache Lucene library has been released. It is the next release from the 9.x branch – Lucene 9.9.0.
Some of the changes included in the Apache Lucene 9.9.0:
- Added int8 scalar quantization to the HNSW vector format allowing optional lossy storage for the vectors, requiring around 4 times less memory for fast HNSW search.
- HNSW graph now can be merged with multiple threads.
- Speed up Panama vector support.
- Various bug fixes and improvements.
The complete list of changes can be found at: https://lucene.apache.org/core/9_9_0/changes/Changes.html.
Apache Lucene 9.9.0 can be downloaded from https://dlcdn.apache.org/lucene/java/.