To plan for 5.0… (same for SOLR). -Vincent
Begin forwarded message: > From: Steve Rowe <[email protected]> > Subject: [ANNOUNCE] Apache Lucene 4.1 released > Date: January 22, 2013 5:21:50 PM GMT+01:00 > To: "[email protected]" <[email protected]>, > "[email protected]" <[email protected]>, > "[email protected]" <[email protected]>, [email protected] > > January 2013, Apache Lucene™ 4.1 available > > The Lucene PMC is pleased to announce the release of Apache Lucene 4.1. > > Apache Lucene is a high-performance, full-featured text search engine > library written entirely in Java. It is a technology suitable for nearly > any application that requires full-text search, especially cross-platform. > > This release contains numerous bug fixes, optimizations, and > improvements, some of which are highlighted below. The release > is available for immediate download at: > http://lucene.apache.org/core/mirrors-core-latest-redir.html > > See the CHANGES.txt file included with the release for a full list of > details. > > Lucene 4.1 Release Highlights: > > * Lucene 4.1 has a new default codec (Lucene41Codec) based on the > previously-experimental "Block" indexing format for improved > performance, but also incorporating the functionality of "Appending" > and "Pulsing". > > * The default codec incorporates the optimization of Pulsing: terms > that appear in only one document (such as primary key/id fields) just > store the document id in the term dictionary instead of a pointer to > this document id in a separate file. > > * The default codec incorporates an efficient compressed stored fields > implementation that compresses chunks of documents together with LZ4. > (see > > http://blog.jpountz.net/post/33247161884/efficient-compressed-stored-fields-with-lucene) > > * Lucene no longer seeks when writing files (all fields are written in > an append-only way). This means it works by default with append-only > streams, hdfs, etc. > > * New suggest implementations: AnalyzingSuggester, where the underlying > form (computed from a lucene Analyzer) used for suggestions is > separate from the returned text (see > > http://blog.mikemccandless.com/2012/09/lucenes-new-analyzing-suggester.html), > and FuzzySuggester, which additionally allows for inexact matching on > the input. > > * Near-realtime support was added to the facet module. > (see http://shaierera.blogspot.com/2012/11/lucene-facets-part-1.html) > > * New Highlighter (postingshighlighter) added to the highlighter > module. (see > > http://blog.mikemccandless.com/2012/12/a-new-lucene-highlighter-is-born.html) > > * Added FilterStrategy to FilteredQuery for more flexibility in > filtered query execution. > > * Added CommonTermsQuery to speed up queries with very highly frequent > terms. Term frequencies are efficiently detected at query time - no > index time preparation required. > > * Several bugfixes and optimizations since the 4.0 release. > > Please read CHANGES.txt for a full list of new features. > > Please report any feedback to the mailing lists > (http://lucene.apache.org/core/discussion.html) > > Note: The Apache Software Foundation uses an extensive mirroring network > for distributing releases. It is possible that the mirror you are using > may not have replicated the release yet. If that is the case, please > try another mirror. This also goes for Maven access. > > Happy searching, > Lucene/Solr developers _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
