Bug Fixes

• Addressed a bug where ClientContextID was missing from SearchRequest when library used with vectors (https://github.com/blevesearch/bleve/pull/2014)
• Fix to a memory leak in vector query path (https://github.com/blevesearch/bleve/pull/2023)
• Fix to issue https://github.com/blevesearch/bleve/issues/2027, error in parsing a certain datetime syntax (https://github.com/blevesearch/bleve/pull/2030)
• Fix that mitigates a race between persister's stale segment removal and index copy operations (https://github.com/blevesearch/bleve/pull/2032)
• Nested field mapping determination was broken (https://github.com/blevesearch/bleve/pull/2031)

Improvements

• Vector search requires the faiss dynamic library to be built from blevesearch/faiss@d9db66a
• Support for new data type - vector_base64 which allows for interpreting vector float32s encoded as base64 following littleEndian byte ordering (https://github.com/blevesearch/bleve/pull/2012)
• Vector dimensionality support up to 4096 from 2048 (https://github.com/blevesearch/bleve/pull/2015)
• New vector index optimization - memory_efficient alongside pre-existing recall and latency (https://github.com/blevesearch/bleve/pull/2040)
• Better resource usage and efficiency in vector indexing (https://github.com/blevesearch/zapx/pull/241, https://github.com/blevesearch/zapx/pull/234)
• Delayed releasing of deserialized vector indexes to support better query throughput (https://github.com/blevesearch/bleve/pull/2016)

Milestone

• v2.4.1