-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 The Lucene PMC is pleased to announce the release of Apache Lucene 10.1.0.
Apache Lucene is a high-performance, full-featured search engine library written entirely in Java. It is a technology suitable for nearly any application that requires structured search, full-text search, faceting, nearest-neighbor search across high-dimensionality vectors, spell correction or query suggestions. This release contains numerous bug fixes, optimizations, and improvements, some of which are highlighted below. The release is available for immediate download at: <https://lucene.apache.org/core/downloads.html> ### Lucene 10.1.0 Release Highlights: #### New Features * Add IndexInput::isLoaded to determine if the contents of an input is resident in physical memory * FeatureField now supports storing term vectors. #### Improvements * TieredMergePolicy now allows merging up to maxMergeAtOnce segments for merges below the floor segment size, even if maxMergeAtOnce is greater than segmentsPerTier. This makes it more efficient to configure TieredMergePolicy to merge segments aggressively by configuring a high value of floorSegmentSize (e.g. 64MB), a low value of segmentsPerTier (e.g. 4) and a high value of maxMergeAtOnce (e.g. 32). #### Optimizations * Many speedups to top-k query evaluation, in particular: top-level disjunctions, filtered disjunctions, conjunctions, DisjunctionMaxQuery. * Speedup to exhaustive evaluation of conjunctive queries by vectorizing the intersection of postings lists. * Reduced contention for top-k query evaluation when IndexSearcher is configured with an executor. ... plus a multitude of helpful bug fixes! Please read CHANGES.txt for a full list of new features and changes: <https://lucene.apache.org/core/10_1_0/changes/Changes.html> -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEZRx8h9Pv9aJSZKAzHCltC5tk0moFAmdl1cMACgkQHCltC5tk 0mpv8Q/9Fyd7Mc6Am2ou33yEfwQsZjhhzviWfSaa8xxd1VXgn7fodK383EderzOn g6xIa0RqfQUi1pmpUK8Fx47WS8mNvoYL99IPnUILJQU1bNeGFl7GynPrIqCwhblg ALwXeAtd9pefXcCUL5E/EPnFQTsh9e1d62r3JCJQDBjmOyNfMMjO2FwC7wk8Qp6A yXz5XGSwo3BE03gcAe0pz13d9KrGLSibXS35zGwa5eSgF3vcjx2ETyEdrA44JsWT Y3wKopvyZKVO6SxKc9FIh4F+v3Y686++4ajMBlHdyNmpDA59K4Aqfs2ba6D3nAEN TCX/lOAWJwkI22MxsuQ7Zsx7ZgnZ9tckZd5e3aWvBfYXnqIgf/PWWIRgDnOn2rS/ OfSk4s8lS+q/n7PLLFqeYvwzLYnc1VXaO80bSXb4ss+1n+pqGBjuh0aOkmDCH30T SrHV3rdSaGZvkwKJZ6timUQi1mZRZb9q9TRTkzISp+3hIVMXGXBsyM4deTHwmqZk 0Jd4DdMgdqk0GlhfAry/hv/RFusGAussWzL5Qpptkzqtidja8wa5tIx2gfTSy0bz Rh98e6vUy3mp7so+uZu32Su8H9LkNGuqkJttjcvIvouAwkg56uywpQHnc7fNpAJ7 l8CcOwhbJ8mhSnbbzewAKY4PsMnuZf/XvQMVId2E1mxV/qeUdpc= =uyj4 -----END PGP SIGNATURE-----
