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From Apache Wiki <>
Subject [Lucene-java Wiki] Update of "ReleaseNote34" by MikeMcCandless
Date Fri, 09 Sep 2011 18:18:52 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-java Wiki" for change notification.

The "ReleaseNote34" page has been changed by MikeMcCandless:

  is available for immediate download at: (see note below).
+ If you are already using Apache Lucene 3.1, 3.2 or 3.3, we strongly
+ recommend you upgrade to 3.4 because of the index corruption bug on
+ OS or computer crash or power loss (LUCENE-3418), now fixed in 3.4.
- See the CHANGES.txt file included with the release for a full list of details.
+ See the CHANGES.txt file included with the release for a full list of
+ details.
  Lucene 3.4 Release Highlights:
-   TODO
+   * Fixed a major bug (LUCENE-3418) whereby a Lucene index could
+     easily become corrupted if the OS or computer crashed or lost
+     power.
+   * Added a new faceting module (contrib/facet) for computing facet
+     counts (both hierarchical and non-hierarchical) at search
+     time (LUCENE-3079).
+   * Added a new join module (contrib/join), enabling indexing and
+     searching of nested (parent/child) documents using
+     BlockJoinQuery/Collector (LUCENE-3171)
+   * It is now possible to index documents with term frequencies
+     included but without positions (LUCENE-2048); previously
+     omitTermFreqAndPositions always omitted both.
+   * The modular QueryParser (contrib/queryparser) can now create
+     NumericRangeQuery.
+   * Added SynonymFilter, in contrib/analyzers, to apply multi-word
+     synonyms during indexing or querying, including parsers to read
+     the wordnet and solr synonym formats (LUCENE-3233).
+   * You can now control how documents that don't have a value on the
+     sort field should sort (LUCENE-3390), using SortField.setMissingValue.
+   * Fixed a case where term vectors could be silently deleted from the
+     index after addIndexes (LUCENE-3402).
  Note: The Apache Software Foundation uses an extensive mirroring network for
  distributing releases.  It is possible that the mirror you are using may not

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