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Subject svn commit: r616534 [2/3] - in /lucene/java/trunk: CHANGES.txt Changes.html ChangesFancyStyle.css ChangesSimpleStyle.css common-build.xml
Date Tue, 29 Jan 2008 22:04:25 GMT
Added: lucene/java/trunk/Changes.html
--- lucene/java/trunk/Changes.html (added)
+++ lucene/java/trunk/Changes.html Tue Jan 29 14:04:23 2008
@@ -0,0 +1,1906 @@
+** WARNING: This file is generated from CHANGES.txt by the 
+**          Perl script ''.
+**          Do *not* edit this file!
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* See the License for the specific language governing permissions and
+* limitations under the License.
+  <title>Lucene Change Log</title>
+  <link rel="stylesheet" href="ChangesFancyStyle.css" title="Fancy">
+  <link rel="alternate stylesheet" href="ChangesSimpleStyle.css" title="Simple">
+  <META http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    function toggleList(e) {
+      element = document.getElementById(e).style;
+      element.display == 'none' ? element.display = 'block' : element.display='none';
+    }
+    function collapse() {
+      for (var i = 0; i < document.getElementsByTagName("ul").length; i++) {
+        var list = document.getElementsByTagName("ul")[i];
+        if ( != 'trunk' && != '2.3.0') {
+ = "none";
+        }
+      }
+      for (var i = 0; i < document.getElementsByTagName("ol").length; i++) {
+        document.getElementsByTagName("ol")[i].style.display = "none"; 
+      }
+    }
+    window.onload = collapse;
+  </SCRIPT>
+<h1>Lucene Change Log</h1>
+<h2><a href="javascript:toggleList('trunk')">Trunk (not yet released)</a></h2>
+<ul id="trunk">
+  <li><a href="javascript:toggleList('trunk.changes_in_runtime_behavior')">Changes in runtime behavior</a>&nbsp;&nbsp;&nbsp;(none)
+    <ol id="trunk.changes_in_runtime_behavior">
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('trunk.api_changes')">API Changes</a>&nbsp;&nbsp;&nbsp;(2)
+    <ol id="trunk.api_changes">
+      <li><a href="">LUCENE-1084</a>: Changed all IndexWriter constructors to take an
+explicit parameter for maximum field size.  Deprecated all the
+pre-existing constructors; these will be removed in release 3.0.<br />(Steven Rowe via Mike McCandless)</li>
+      <li><a href="">LUCENE-1150</a>: Re-expose StandardTokenizer's constants publicly;
+this was accidentally lost with <a href="">LUCENE-966</a>.<br />(Nicolas Lalevée via
+Mike McCandless)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('trunk.bug_fixes')">Bug fixes</a>&nbsp;&nbsp;&nbsp;(none)
+    <ol id="trunk.bug_fixes">
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('trunk.new_features')">New features</a>&nbsp;&nbsp;&nbsp;(2)
+    <ol id="trunk.new_features">
+      <li><a href="">LUCENE-1137</a>: Added Token.set/getFlags() accessors for passing more information about a Token through the analysis
+ process.  The flag is not indexed/stored and is thus only used by analysis.
+      <li><a href="">LUCENE-1147</a>: Add -segment option to CheckIndex tool so you can
+check only a specific segment or segments in your index.<br />(Mike
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('trunk.optimizations')">Optimizations</a>&nbsp;&nbsp;&nbsp;(2)
+    <ol id="trunk.optimizations">
+      <li><a href="">LUCENE-705</a>: When building a compound file, use
+RandomAccessFile.setLength() to tell the OS/filesystem to
+pre-allocate space for the file.  This may improve fragmentation
+in how the CFS file is stored, and allows us to detect an upcoming
+disk full situation before actually filling up the disk.<br />(Mike
+      <li><a href="">LUCENE-1120</a>: Speed up merging of term vectors by bulk-copying the
+raw bytes for each contiguous range of non-deleted documents.<br />(Mike McCandless)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('trunk.documentation')">Documentation</a>&nbsp;&nbsp;&nbsp;(1)
+    <ol id="trunk.documentation">
+      <li><a href="">LUCENE-1157</a>: Formatable changes log - Changes.html created by
+parsing CHANGES.txt.<br />(Steven Rowe, Doron Cohen)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('')">Build</a>&nbsp;&nbsp;&nbsp;(1)
+    <ol id="">
+      <li><a href="">LUCENE-1153</a>: Added JUnit JAR to new lib directory.  Updated build to rely on local JUnit instead of ANT/lib.
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('trunk.test_cases')">Test Cases</a>&nbsp;&nbsp;&nbsp;(none)
+    <ol id="trunk.test_cases">
+    </ol>
+  </li>
+<h2><a href="javascript:toggleList('2.3.0')">Release 2.3.0  [2008-01-21]</a></h2>
+<ul id="2.3.0">
+  <li><a href="javascript:toggleList('2.3.0.changes_in_runtime_behavior')">Changes in runtime behavior</a>&nbsp;&nbsp;&nbsp;(2)
+    <ol id="2.3.0.changes_in_runtime_behavior">
+      <li><a href="">LUCENE-994</a>: Defaults for IndexWriter have been changed to maximize
+out-of-the-box indexing speed.  First, IndexWriter now flushes by
+RAM usage (16 MB by default) instead of a fixed doc count (call
+IndexWriter.setMaxBufferedDocs to get backwards compatible
+behavior).  Second, ConcurrentMergeScheduler is used to run merges
+using background threads (call IndexWriter.setMergeScheduler(new
+SerialMergeScheduler()) to get backwards compatible behavior).
+Third, merges are chosen based on size in bytes of each segment
+rather than document count of each segment (call
+IndexWriter.setMergePolicy(new LogDocMergePolicy()) to get
+backwards compatible behavior).
+NOTE: users of ParallelReader must change back all of these
+defaults in order to ensure the docIDs "align" across all parallel
+indices.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-1045</a>: SortField.AUTO didn't work with long. When detecting
+the field type for sorting automatically, numbers used to be
+interpreted as int, then as float, if parsing the number as an int
+failed. Now the detection checks for int, then for long,
+then for float.<br />(Daniel Naber)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.3.0.api_changes')">API Changes</a>&nbsp;&nbsp;&nbsp;(14)
+    <ol id="2.3.0.api_changes">
+      <li><a href="">LUCENE-843</a>: Added IndexWriter.setRAMBufferSizeMB(...) to have
+IndexWriter flush whenever the buffered documents are using more
+than the specified amount of RAM.  Also added new APIs to Token
+that allow one to set a char[] plus offset and length to specify a
+token (to avoid creating a new String() for each Token).<br />(Mike
+      <li><a href="">LUCENE-963</a>: Add setters to Field to allow for re-using a single
+Field instance during indexing.  This is a sizable performance
+gain, especially for small documents.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-969</a>: Add new APIs to Token, TokenStream and Analyzer to
+permit re-using of Token and TokenStream instances during
+indexing.  Changed Token to use a char[] as the store for the
+termText instead of String.  This gives faster tokenization
+performance (~10-15%).<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-847</a>: Factored MergePolicy, which determines which merges
+should take place and when, as well as MergeScheduler, which
+determines when the selected merges should actually run, out of
+IndexWriter.  The default merge policy is now
+LogByteSizeMergePolicy (see <a href="">LUCENE-845</a>) and the default merge
+scheduler is now ConcurrentMergeScheduler (see
+<a href="">LUCENE-870</a>).<br />(Steven Parkes via Mike McCandless)</li>
+      <li><a href="">LUCENE-1052</a>: Add IndexReader.setTermInfosIndexDivisor(int) method
+that allows you to reduce memory usage of the termInfos by further
+sub-sampling (over the termIndexInterval that was used during
+indexing) which terms are loaded into memory.<br />(Chuck Williams,
+Doug Cutting via Mike McCandless)</li>
+      <li><a href="">LUCENE-743</a>: Add IndexReader.reopen() method that re-opens an
+existing IndexReader (see New features -&gt; 8.)<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-1062</a>: Add setData(byte[] data),
+setData(byte[] data, int offset, int length), getData(), getOffset()
+and clone() methods to o.a.l.index.Payload. Also add the field name
+as arg to Similarity.scorePayload().<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-982</a>: Add IndexWriter.optimize(int maxNumSegments) method to
+"partially optimize" an index down to maxNumSegments segments.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-1080</a>: Changed Token.DEFAULT_TYPE to be public.
+      <li><a href="">LUCENE-1064</a>: Changed TopDocs constructor to be public.<br />(Shai Erera via Michael Busch)</li>
+      <li><a href="">LUCENE-1079</a>: DocValues cleanup: constructor now has no params,
+and getInnerArray() now throws UnsupportedOperationException<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-1089</a>: Added PriorityQueue.insertWithOverflow, which returns
+the Object (if any) that was bumped from the queue to allow
+re-use.<br />(Shai Erera via Mike McCandless)</li>
+      <li><a href="">LUCENE-1101</a>: Token reuse 'contract' (defined <a href="">LUCENE-969</a>)
+modified so it is token producer's responsibility
+to call Token.clear().<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-1118</a>: Changed StandardAnalyzer to skip too-long (default &gt;
+255 characters) tokens.  You can increase this limit by calling
+StandardAnalyzer.setMaxTokenLength(...).<br />(Michael McCandless)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.3.0.bug_fixes')">Bug fixes</a>&nbsp;&nbsp;&nbsp;(28)
+    <ol id="2.3.0.bug_fixes">
+      <li><a href="">LUCENE-933</a>: QueryParser fixed to not produce empty sub
+BooleanQueries "()" even if the Analyzer produced no
+tokens for input.<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-955</a>: Fixed SegmentTermPositions to work correctly with the
+first term in the dictionary.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-951</a>: Fixed NullPointerException in MultiLevelSkipListReader
+that was thrown after a call of<br />(Rich Johnson via Michael Busch)</li>
+      <li><a href="">LUCENE-938</a>: Fixed cases where an unhandled exception in
+IndexWriter's methods could cause deletes to be lost.<br />(Steven Parkes via Mike McCandless)</li>
+      <li><a href="">LUCENE-962</a>: Fixed case where an unhandled exception in
+IndexWriter.addDocument or IndexWriter.updateDocument could cause
+unreferenced files in the index to not be deleted<br />(Steven Parkes via Mike McCandless)</li>
+      <li><a href="">LUCENE-957</a>: RAMDirectory fixed to properly handle directories
+larger than Integer.MAX_VALUE.<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-781</a>: MultiReader fixed to not throw NPE if isCurrent(),
+isOptimized() or getVersion() is called. Separated MultiReader
+into two classes: MultiSegmentReader extends IndexReader, is
+package-protected and is created automatically by
+in case the index has multiple segments. The public MultiReader
+now extends MultiSegmentReader and is intended to be used by users
+who want to add their own subreaders.<br />(Daniel Naber, Michael Busch)</li>
+      <li><a href="">LUCENE-970</a>: FilterIndexReader now implements isOptimized(). Before
+a call of isOptimized() would throw a NPE.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-832</a>: ParallelReader fixed to not throw NPE if isCurrent(),
+isOptimized() or getVersion() is called.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-948</a>: Fix FNFE exception caused by stale NFS client
+directory listing caches when writers on different machines are
+sharing an index over NFS and using a custom deletion policy<br />(Mike
+      <li><a href="">LUCENE-978</a>: Ensure TermInfosReader, FieldsReader, and FieldsReader
+close any streams they had opened if an exception is hit in the
+constructor.<br />(Ning Li via Mike McCandless)</li>
+      <li><a href="">LUCENE-985</a>: If an extremely long term is in a doc (&gt; 16383 chars),
+we now throw an IllegalArgumentException saying the term is too
+long, instead of cryptic ArrayIndexOutOfBoundsException.<br />(Karl
+Wettin via Mike McCandless)</li>
+      <li><a href="">LUCENE-991</a>: The explain() method of BoostingTermQuery had errors
+when no payloads were present on a document.<br />(Peter Keegan via
+Grant Ingersoll)</li>
+      <li><a href="">LUCENE-992</a>: Fixed IndexWriter.updateDocument to be atomic again
+(this was broken by <a href="">LUCENE-843</a>).<br />(Ning Li via Mike McCandless)</li>
+      <li><a href="">LUCENE-1008</a>: Fixed corruption case when document with no term
+vector fields is added after documents with term vector fields.
+This bug was introduced with <a href="">LUCENE-843</a>.<br />(Grant Ingersoll via
+Mike McCandless)</li>
+      <li><a href="">LUCENE-1006</a>: Fixed QueryParser to accept a "" field value (zero
+length quoted string.)<br />(yonik)</li>
+      <li><a href="">LUCENE-1010</a>: Fixed corruption case when document with no term
+vector fields is added after documents with term vector fields.
+This case is hit during merge and would cause an EOFException.
+This bug was introduced with <a href="">LUCENE-984</a>.<br />(Andi Vajda via Mike
+      <li><a href="">LUCENE-1009</a>: Fix merge slowdown with LogByteSizeMergePolicy when
+autoCommit=false and documents are using stored fields and/or term
+vectors.<br />(Mark Miller via Mike McCandless)</li>
+      <li><a href="">LUCENE-1011</a>: Fixed corruption case when two or more machines,
+sharing an index over NFS, can be writers in quick succession.<br />(Patrick Kimber via Mike McCandless)</li>
+      <li><a href="">LUCENE-1028</a>: Fixed Weight serialization for few queries:
+DisjunctionMaxQuery, ValueSourceQuery, CustomScoreQuery.
+Serialization check added for all queries.<br />(Kyle Maxwell via Doron Cohen)</li>
+      <li><a href="">LUCENE-1048</a>: Fixed incorrect behavior in Lock.obtain(...) when the
+timeout argument is very large (eg Long.MAX_VALUE).  Also added
+Lock.LOCK_OBTAIN_WAIT_FOREVER constant to never timeout.<br />(Nikolay
+Diakov via Mike McCandless)</li>
+      <li><a href="">LUCENE-1050</a>: Throw LockReleaseFailedException in
+Simple/NativeFSLockFactory if we fail to delete the lock file when
+releasing the lock.<br />(Nikolay Diakov via Mike McCandless)</li>
+      <li><a href="">LUCENE-1071</a>: Fixed SegmentMerger to correctly set payload bit in
+the merged segment.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-1042</a>: Remove throwing of IOException in getTermFreqVector(int, String, TermVectorMapper) to be consistent
+with other getTermFreqVector calls.  Also removed the throwing of the other IOException in that method to be consistent.<br />(Karl Wettin via Grant Ingersoll)</li>
+      <li><a href="">LUCENE-1096</a>: Fixed Hits behavior when hits' docs are deleted
+along with iterating the hits. Deleting docs already retrieved
+now works seamlessly. If docs not yet retrieved are deleted
+(e.g. from another thread), and then, relying on the initial
+Hits.length(), an application attempts to retrieve more hits
+than actually exist , a ConcurrentMidificationException
+is thrown.<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-1068</a>: Changed StandardTokenizer to fix an issue with it marking
+  the type of some tokens incorrectly.  This is done by adding a new flag named
+  replaceInvalidAcronym which defaults to false, the current, incorrect behavior.  Setting
+  this flag to true fixes the problem.  This flag is a temporary fix and is already
+  marked as being deprecated.  3.x will implement the correct approach.  (Shai Erera via Grant Ingersoll)
+  <a href="">LUCENE-1140</a>: Fixed NPE caused by 1068<br />(Alexei Dets via Grant Ingersoll)</li>
+      <li><a href="">LUCENE-749</a>: ChainedFilter behavior fixed when logic of
+first filter is ANDNOT.<br />(Antonio Bruno via Doron Cohen)</li>
+      <li><a href="">LUCENE-508</a>: Make sure SegmentTermEnum.prev() is accurate (= last
+term) after next() returns false.<br />(Steven Tamm via Mike
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.3.0.new_features')">New features</a>&nbsp;&nbsp;&nbsp;(13)
+    <ol id="2.3.0.new_features">
+      <li><a href="">LUCENE-906</a>: Elision filter for French.<br />(Mathieu Lecarme via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-960</a>: Added a SpanQueryFilter and related classes to allow for
+not only filtering, but knowing where in a Document a Filter matches<br />(Grant Ingersoll)</li>
+      <li><a href="">LUCENE-868</a>: Added new Term Vector access features.  New callback
+mechanism allows application to define how and where to read Term
+Vectors from disk. This implementation contains several extensions
+of the new abstract TermVectorMapper class.  The new API should be
+back-compatible.  No changes in the actual storage of Term Vectors
+has taken place.
+      <li>1 <a href="">LUCENE-1038</a>: Added setDocumentNumber() method to TermVectorMapper
+  to provide information about what document is being accessed.<br />(Karl Wettin via Grant Ingersoll)</li>
+      <li><a href="">LUCENE-975</a>: Added PositionBasedTermVectorMapper that allows for
+position based lookup of term vector information.
+See item #3 above (<a href="">LUCENE-868</a>).
+      <li><a href="">LUCENE-1011</a>: Added simple tools (all in
+to verify that locking is working properly.  LockVerifyServer runs
+a separate server to verify locks.  LockStressTest runs a simple
+tool that rapidly obtains and releases locks.
+VerifyingLockFactory is a LockFactory that wraps any other
+LockFactory and consults the LockVerifyServer whenever a lock is
+obtained or released, throwing an exception if an illegal lock
+obtain occurred.<br />(Patrick Kimber via Mike McCandless)</li>
+      <li><a href="">LUCENE-1015</a>: Added FieldCache extension (ExtendedFieldCache) to
+support doubles and longs.  Added support into SortField for sorting
+on doubles and longs as well.<br />(Grant Ingersoll)</li>
+      <li><a href="">LUCENE-1020</a>: Created basic index checking &amp; repair tool
+(o.a.l.index.CheckIndex).  When run without -fix it does a
+detailed test of all segments in the index and reports summary
+information and any errors it hit.  With -fix it will remove
+segments that had errors.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-743</a>: Add IndexReader.reopen() method that re-opens an
+existing IndexReader by only loading those portions of an index
+that have changed since the reader was (re)opened. reopen() can
+be significantly faster than open(), depending on the amount of
+index changes. SegmentReader, MultiSegmentReader, MultiReader,
+and ParallelReader implement reopen().<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-1040</a>: CharArraySet useful for efficiently checking
+set membership of text specified by char[].<br />(yonik)</li>
+      <li><a href="">LUCENE-1073</a>: Created SnapshotDeletionPolicy to facilitate taking a
+live backup of an index without pausing indexing.<br />(Mike
+      <li><a href="">LUCENE-1019</a>: CustomScoreQuery enhanced to support multiple
+ValueSource queries.<br />(Kyle Maxwell via Doron Cohen)</li>
+      <li><a href="">LUCENE-1095</a>: Added an option to StopFilter to increase
+positionIncrement of the token succeeding a stopped token.
+Disabled by default. Similar option added to QueryParser
+to consider token positions when creating PhraseQuery
+and MultiPhraseQuery. Disabled by default (so by default
+the query parser ignores position increments).<br />(Doron Cohen)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.3.0.optimizations')">Optimizations</a>&nbsp;&nbsp;&nbsp;(14)
+    <ol id="2.3.0.optimizations">
+      <li><a href="">LUCENE-937</a>: CachingTokenFilter now uses an iterator to access the
+Tokens that are cached in the LinkedList. This increases performance
+significantly, especially when the number of Tokens is large.<br />(Mark Miller via Michael Busch)</li>
+      <li><a href="">LUCENE-843</a>: Substantial optimizations to improve how IndexWriter
+uses RAM for buffering documents and to speed up indexing (2X-8X
+faster).  A single shared hash table now records the in-memory
+postings per unique term and is directly flushed into a single
+segment.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-892</a>: Fixed extra "buffer to buffer copy" that sometimes
+takes place when using compound files.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-959</a>: Remove synchronization in Document<br />(yonik)</li>
+      <li><a href="">LUCENE-963</a>: Add setters to Field to allow for re-using a single
+Field instance during indexing.  This is a sizable performance
+gain, especially for small documents.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-939</a>: Check explicitly for boundary conditions in FieldInfos
+and don't rely on exceptions.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-966</a>: Very substantial speedups (~6X faster) for
+StandardTokenizer (StandardAnalyzer) by using JFlex instead of
+JavaCC to generate the tokenizer.<br />(Stanislaw Osinski via Mike McCandless)</li>
+      <li><a href="">LUCENE-969</a>: Changed core tokenizers &amp; filters to re-use Token and
+TokenStream instances when possible to improve tokenization
+performance (~10-15%).<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-871</a>: Speedup ISOLatin1AccentFilter<br />(Ian Boston via Mike
+      <li><a href="">LUCENE-986</a>: Refactored SegmentInfos from IndexReader into the new
+subclass DirectoryIndexReader. SegmentReader and MultiSegmentReader
+now extend DirectoryIndexReader and are the only IndexReader
+implementations that use SegmentInfos to access an index and
+acquire a write lock for index modifications.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-1007</a>: Allow flushing in IndexWriter to be triggered by
+either RAM usage or document count or both (whichever comes
+first), by adding symbolic constant DISABLE_AUTO_FLUSH to disable
+one of the flush triggers.<br />(Ning Li via Mike McCandless)</li>
+      <li><a href="">LUCENE-1043</a>: Speed up merging of stored fields by bulk-copying the
+raw bytes for each contiguous range of non-deleted documents.<br />(Robert Engels via Mike McCandless)</li>
+      <li><a href="">LUCENE-693</a>: Speed up nested conjunctions (~2x) that match many
+documents, and a slight performance increase for top level
+conjunctions.<br />(yonik)</li>
+      <li><a href="">LUCENE-1098</a>: Make inner class StandardAnalyzer.SavedStreams static
+and final.<br />(Nathan Beyer via Michael Busch)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.3.0.documentation')">Documentation</a>&nbsp;&nbsp;&nbsp;(2)
+    <ol id="2.3.0.documentation">
+      <li><a href="">LUCENE-1051</a>: Generate separate javadocs for core, demo and contrib
+classes, as well as an unified view. Also add an appropriate menu
+structure to the website.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-746</a>: Fix error message in AnalyzingQueryParser.getPrefixQuery.<br />(Ronnie Kolehmainen via Michael Busch)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('')">Build</a>&nbsp;&nbsp;&nbsp;(8)
+    <ol id="">
+      <li><a href="">LUCENE-908</a>: Improvements and simplifications for how the MANIFEST
+file and the META-INF dir are created.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-935</a>: Various improvements for the maven artifacts. Now the
+artifacts also include the sources as .jar files.<br />(Michael Busch)</li>
+      <li>Added apply-patch target to top-level build.  Defaults to looking for
+a patch in ${basedir}/../patches with name specified by
+Can also specify any location by -Dpatch.file property on the command
+line.  This should be helpful for easy application of patches, but it
+is also a step towards integrating automatic patch application with
+JIRA and Hudson, and is thus subject to change.<br />(Grant Ingersoll)</li>
+      <li><a href="">LUCENE-935</a>: Defined property "m2.repository.url" to allow setting
+the url to a maven remote repository to deploy to.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-1051</a>: Include javadocs in the maven artifacts.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-1055</a>: Remove gdata-server from build files and its sources
+from trunk.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-935</a>: Allow to deploy maven artifacts to a remote m2 repository
+via scp and ssh authentication.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-1123</a>: Allow overriding the specification version for
+MANIFEST.MF<br />(Michael Busch)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.3.0.test_cases')">Test Cases</a>&nbsp;&nbsp;&nbsp;(1)
+    <ol id="2.3.0.test_cases">
+      <li><a href="">LUCENE-766</a>: Test adding two fields with the same name but different
+term vector setting.<br />(Nicolas Lalevée via Doron Cohen)</li>
+    </ol>
+  </li>
+<h2><a href="javascript:toggleList('older')">Older Releases</a></h2>
+<ul id="older">
+<h3><a href="javascript:toggleList('2.2.0')">Release 2.2.0  [2007-06-19]</a></h3>
+<ul id="2.2.0">
+  <li><a href="javascript:toggleList('2.2.0.changes_in_runtime_behavior')">Changes in runtime behavior</a>&nbsp;&nbsp;&nbsp;(none)
+    <ol id="2.2.0.changes_in_runtime_behavior">
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.2.0.api_changes')">API Changes</a>&nbsp;&nbsp;&nbsp;(13)
+    <ol id="2.2.0.api_changes">
+      <li><a href="">LUCENE-793</a>: created new exceptions and added them to throws clause
+for many methods (all subclasses of IOException for backwards
+compatibility): index.StaleReaderException,
+index.CorruptIndexException, store.LockObtainFailedException.
+This was done to better call out the possible root causes of an
+IOException from these methods.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-811</a>: make SegmentInfos class, plus a few methods from related
+classes, package-private again (they were unnecessarily made public
+as part of <a href="">LUCENE-701</a>).<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-710</a>: added optional autoCommit boolean to IndexWriter
+constructors.  When this is false, index changes are not committed
+until the writer is closed.  This gives explicit control over when
+a reader will see the changes.  Also added optional custom
+deletion policy to explicitly control when prior commits are
+removed from the index.  This is intended to allow applications to
+share an index over NFS by customizing when prior commits are
+deleted.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-818</a>: changed most public methods of IndexWriter,
+IndexReader (and its subclasses), FieldsReader and RAMDirectory to
+throw AlreadyClosedException if they are accessed after being
+closed.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-834</a>: Changed some access levels for certain Span classes to allow them
+to be overridden.  They have been marked expert only and not for public
+consumption.<br />(Grant Ingersoll)</li>
+      <li><a href="">LUCENE-796</a>: Removed calls to super.* from various get*Query methods in
+MultiFieldQueryParser, in order to allow sub-classes to override them.<br />(Steven Parkes via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-857</a>: Removed caching from QueryFilter and deprecated QueryFilter
+in favour of QueryWrapperFilter or QueryWrapperFilter + CachingWrapperFilter
+combination when caching is desired.<br />(Chris Hostetter, Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-869</a>: Changed FSIndexInput and FSIndexOutput to inner classes of FSDirectory
+to enable extensibility of these classes.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-580</a>: Added the public method reset() to TokenStream. This method does
+nothing by default, but may be overwritten by subclasses to support consuming
+the TokenStream more than once.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-580</a>: Added a new constructor to Field that takes a TokenStream as
+argument, available as tokenStreamValue(). This is useful to avoid the need of
+"dummy analyzers" for pre-analyzed fields.<br />(Karl Wettin, Michael Busch)</li>
+      <li><a href="">LUCENE-730</a>: Added the new methods to BooleanQuery setAllowDocsOutOfOrder() and
+getAllowDocsOutOfOrder(). Deprecated the methods setUseScorer14() and
+getUseScorer14(). The optimization patch <a href="">LUCENE-730</a> (see Optimizations-&gt;3.)
+improves performance for certain queries but results in scoring out of docid
+order. This patch reverse this change, so now by default hit docs are scored
+in docid order if not setAllowDocsOutOfOrder(true) is explicitly called.
+This patch also enables the tests in QueryUtils again that check for docid
+order.<br />(Paul Elschot, Doron Cohen, Michael Busch)</li>
+      <li><a href="">LUCENE-888</a>: Added Directory.openInput(File path, int bufferSize)
+to optionally specify the size of the read buffer.  Also added
+BufferedIndexInput.setBufferSize(int) to change the buffer size.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-923</a>: Make SegmentTermPositionVector package-private. It does not need
+to be public because it implements the public interface TermPositionVector.<br />(Michael Busch)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.2.0.bug_fixes')">Bug fixes</a>&nbsp;&nbsp;&nbsp;(24)
+    <ol id="2.2.0.bug_fixes">
+      <li><a href="">LUCENE-804</a>: Fixed build.xml to pack a fully compilable src dist.<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-813</a>: Leading wildcard fixed to work with trailing wildcard.
+Query parser modified to create a prefix query only for the case
+that there is a single trailing wildcard (and no additional wildcard
+or '?' in the query text).<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-812</a>: Add no-argument constructors to NativeFSLockFactory
+and SimpleFSLockFactory.  This enables all 4 builtin LockFactory
+implementations to be specified via the System property<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-821</a>: The new single-norm-file introduced by <a href="">LUCENE-756</a>
+failed to reduce the number of open descriptors since it was still
+opened once per field with norms.<br />(yonik)</li>
+      <li><a href="">LUCENE-823</a>: Make sure internal file handles are closed when
+hitting an exception (eg disk full) while flushing deletes in
+IndexWriter's mergeSegments, and also during
+IndexWriter.addIndexes.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-825</a>: If directory is removed after
+FSDirectory.getDirectory() but before you now get
+a FileNotFoundException like Lucene pre-2.1 (before this fix you
+got an NPE).<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-800</a>: Removed backslash from the TERM_CHAR list in the queryparser,
+because the backslash is the escape character. Also changed the ESCAPED_CHAR
+list to contain all possible characters, because every character that
+follows a backslash should be considered as escaped.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-372</a>: QueryParser.parse() now ensures that the entire input string
+is consumed. Now a ParseException is thrown if a query contains too many
+closing parentheses.<br />(Andreas Neumann via Michael Busch)</li>
+      <li><a href="">LUCENE-814</a>: javacc build targets now fix line-end-style of generated files.
+Now also deleting all javacc generated files before calling javacc.<br />(Steven Parkes, Doron Cohen)</li>
+      <li><a href="">LUCENE-829</a>: close readers in contrib/benchmark.<br />(Karl Wettin, Doron Cohen)</li>
+      <li><a href="">LUCENE-828</a>: Minor fix for Term's equal().<br />(Paul Cowan via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-846</a>: Fixed: if IndexWriter is opened with autoCommit=false,
+and you call addIndexes, and hit an exception (eg disk full) then
+when IndexWriter rolls back its internal state this could corrupt
+the instance of IndexWriter (but, not the index itself) by
+referencing already deleted segments.  This bug was only present
+in 2.2 (trunk), ie was never released.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-736</a>: Sloppy phrase query with repeating terms matches wrong docs.
+For example query "B C B"~2 matches the doc "A B C D E".<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-789</a>: Fixed: custom similarity is ignored when using MultiSearcher (problem reported
+by Alexey Lef). Now the similarity applied by MultiSearcer.setSimilarity(sim) is being used.
+Note that as before this fix, creating a multiSearcher from Searchers for whom custom similarity
+was set has no effect - it is masked by the similarity of the MultiSearcher. This is as
+designed, because MultiSearcher operates on Searchables (not Searchers).<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-880</a>: Fixed DocumentWriter to close the TokenStreams after it
+has written the postings. Then the resources associated with the
+TokenStreams can safely be released.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-883</a>: consecutive calls to Spellchecker.indexDictionary()
+won't insert terms twice anymore.<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-881</a>: QueryParser.escape() now also escapes the characters
+'|' and '&amp;' which are part of the queryparser syntax.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-886</a>: Spellchecker clean up: exceptions aren't printed to STDERR
+anymore and ignored, but re-thrown. Some javadoc improvements.<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-698</a>: FilteredQuery now takes the query boost into account for
+scoring.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-763</a>: Spellchecker: LuceneDictionary used to skip first word in
+enumeration.<br />(Christian Mallwitz via Daniel Naber)</li>
+      <li><a href="">LUCENE-903</a>: FilteredQuery explanation inaccuracy with boost.
+Explanation tests now "deep" check the explanation details.<br />(Chris Hostetter, Doron Cohen)</li>
+      <li><a href="">LUCENE-912</a>: DisjunctionMaxScorer first skipTo(target) call ignores the
+skip target param and ends up at the first match.<br />(Sudaakeran B. via Chris Hostetter &amp; Doron Cohen)</li>
+      <li><a href="">LUCENE-913</a>: Two consecutive score() calls return different
+scores for Boolean Queries.<br />(Michael Busch, Doron Cohen)</li>
+      <li><a href="">LUCENE-1013</a>: Fix IndexWriter.setMaxMergeDocs to work "out of the
+box", again, by moving set/getMaxMergeDocs up from
+LogDocMergePolicy into LogMergePolicy.  This fixes the API
+breakage (non backwards compatible change) caused by <a href="">LUCENE-994</a>.<br />(Yonik Seeley via Mike McCandless)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.2.0.new_features')">New features</a>&nbsp;&nbsp;&nbsp;(9)
+    <ol id="2.2.0.new_features">
+      <li><a href="">LUCENE-759</a>: Added two n-gram-producing TokenFilters.<br />(Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-822</a>: Added FieldSelector capabilities to Searchable for use with
+RemoteSearcher, and other Searchable implementations.<br />(Mark Miller, Grant Ingersoll)</li>
+      <li><a href="">LUCENE-755</a>: Added the ability to store arbitrary binary metadata in the posting list.
+These metadata are called Payloads. For every position of a Token one Payload in the form
+of a variable length byte array can be stored in the prox file.
+Remark: The APIs introduced with this feature are in experimental state and thus
+        contain appropriate warnings in the javadocs.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-834</a>: Added BoostingTermQuery which can boost scores based on the
+values of a payload (see #3 above.)<br />(Grant Ingersoll)</li>
+      <li><a href="">LUCENE-834</a>: Similarity has a new method for scoring payloads called
+scorePayloads that can be overridden to take advantage of payload
+storage<br />(see #3 above)</li>
+      <li><a href="">LUCENE-834</a>: Added isPayloadAvailable() onto TermPositions interface and
+implemented it in the appropriate places<br />(Grant Ingersoll)</li>
+      <li><a href="">LUCENE-853</a>: Added RemoteCachingWrapperFilter to enable caching of Filters
+on the remote side of the RMI connection.<br />(Matt Ericson via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-446</a>: Added Solr's search.function for scores based on field
+values, plus CustomScoreQuery for simple score (post) customization.<br />(Yonik Seeley, Doron Cohen)</li>
+      <li><a href="">LUCENE-1058</a>: Added new TeeTokenFilter (like the UNIX 'tee' command) and SinkTokenizer which can be used to share tokens between two or more
+Fields such that the other Fields do not have to go through the whole Analysis process over again.  For instance, if you have two
+Fields that share all the same analysis steps except one lowercases tokens and the other does not, you can coordinate the operations
+between the two using the TeeTokenFilter and the SinkTokenizer.  See for examples.<br />(Grant Ingersoll, Michael Busch, Yonik Seeley)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.2.0.optimizations')">Optimizations</a>&nbsp;&nbsp;&nbsp;(7)
+    <ol id="2.2.0.optimizations">
+      <li><a href="">LUCENE-761</a>: The proxStream is now cloned lazily in SegmentTermPositions
+when nextPosition() is called for the first time. This allows using instances
+of SegmentTermPositions instead of SegmentTermDocs without additional costs.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-431</a>: RAMInputStream and RAMOutputStream extend IndexInput and
+IndexOutput directly now. This avoids further buffering and thus avoids
+unnecessary array copies.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-730</a>: Updated BooleanScorer2 to make use of BooleanScorer in some
+cases and possibly improve scoring performance.  Documents can now be
+delivered out-of-order as they are scored (e.g. to HitCollector).
+N.B. A bit of code had to be disabled in QueryUtils in order for
+TestBoolean2 test to keep passing.<br />(Paul Elschot via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-882</a>: Spellchecker doesn't store the ngrams anymore but only indexes
+them to keep the spell index small.<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-430</a>: Delay allocation of the buffer after a clone of BufferedIndexInput.
+Together with <a href="">LUCENE-888</a> this will allow to adjust the buffer size
+dynamically.<br />(Paul Elschot, Michael Busch)</li>
+      <li><a href="">LUCENE-888</a>: Increase buffer sizes inside CompoundFileWriter and
+BufferedIndexOutput.  Also increase buffer size in
+BufferedIndexInput, but only when used during merging.  Together,
+these increases yield 10-18% overall performance gain vs the
+previous 1K defaults.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-866</a>: Adds multi-level skip lists to the posting lists. This speeds
+up most queries that use skipTo(), especially on big indexes with large posting
+lists. For average AND queries the speedup is about 20%, for queries that
+contain very frequent and very unique terms the speedup can be over 80%.<br />(Michael Busch)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.2.0.documentation')">Documentation</a>&nbsp;&nbsp;&nbsp;(6)
+    <ol id="2.2.0.documentation">
+      <li>LUCENE 791 &amp;&amp; INFRA-1173: Infrastructure moved the Wiki to
+   Updated the links in the docs and
+wherever else I found references.<br />(Grant Ingersoll, Joe Schaefer)</li>
+      <li><a href="">LUCENE-807</a>: Fixed the javadoc for to be
+consistent with Any integer is allowed to
+be returned instead of only -1/0/1.<br />(Paul Cowan via Michael Busch)</li>
+      <li><a href="">LUCENE-875</a>: Solved javadoc warnings &amp; errors under jdk1.4.
+Solved javadoc errors under jdk5 (jars in path for gdata).
+Made "javadocs" target depend on "build-contrib" for first downloading
+contrib jars configured for dynamic downloaded. (Note: when running
+behind firewall, a firewall prompt might pop up)<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-740</a>: Added SNOWBALL-LICENSE.txt to the snowball package and a
+remark about the license to NOTICE.TXT.<br />(Steven Parkes via Michael Busch)</li>
+      <li><a href="">LUCENE-925</a>: Added analysis package javadocs.<br />(Grant Ingersoll and Doron Cohen)</li>
+      <li><a href="">LUCENE-926</a>: Added document package javadocs.<br />(Grant Ingersoll)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('')">Build</a>&nbsp;&nbsp;&nbsp;(10)
+    <ol id="">
+      <li><a href="">LUCENE-802</a>: Added LICENSE.TXT and NOTICE.TXT to Lucene jars.<br />(Steven Parkes via Michael Busch)</li>
+      <li><a href="">LUCENE-885</a>: "ant test" now includes all contrib tests.  The new
+"ant test-core" target can be used to run only the Core (non
+contrib) tests.<br />(Chris Hostetter)</li>
+      <li><a href="">LUCENE-900</a>: "ant test" now enables Java assertions (in Lucene packages).<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-894</a>: Add custom build file for binary distributions that includes
+targets to build the demos.<br />(Chris Hostetter, Michael Busch)</li>
+      <li><a href="">LUCENE-904</a>: The "package" targets in build.xml now also generate .md5
+checksum files.<br />(Chris Hostetter, Michael Busch)</li>
+      <li><a href="">LUCENE-907</a>: Include LICENSE.TXT and NOTICE.TXT in the META-INF dirs of
+demo war, demo jar, and the contrib jars.<br />(Michael Busch)</li>
+      <li><a href="">LUCENE-909</a>: Demo targets for running the demo.<br />(Doron Cohen)</li>
+      <li><a href="">LUCENE-908</a>: Improves content of MANIFEST file and makes it customizable
+for the contribs. Adds SNOWBALL-LICENSE.txt to META-INF of the snowball
+jar and makes sure that the lucli jar contains LICENSE.txt and NOTICE.txt.<br />(Chris Hostetter, Michael Busch)</li>
+      <li><a href="">LUCENE-930</a>: Various contrib building improvements to ensure contrib
+dependencies are met, and test compilation errors fail the build.<br />(Steven Parkes, Chris Hostetter)</li>
+      <li><a href="">LUCENE-622</a>: Add ant target and pom.xml files for building maven artifacts
+of the Lucene core and the contrib modules.<br />(Sami Siren, Karl Wettin, Michael Busch)</li>
+    </ol>
+  </li>
+<h3><a href="javascript:toggleList('2.1.0')">Release 2.1.0  [2007-02-14]</a></h3>
+<ul id="2.1.0">
+  <li><a href="javascript:toggleList('2.1.0.changes_in_runtime_behavior')">Changes in runtime behavior</a>&nbsp;&nbsp;&nbsp;(9)
+    <ol id="2.1.0.changes_in_runtime_behavior">
+      <li>'s' and 't' have been removed from the list of default stopwords
+in StopAnalyzer (also used in by StandardAnalyzer). Having e.g. 's'
+as a stopword meant that 's-class' led to the same results as 'class'.
+Note that this problem still exists for 'a', e.g. in 'a-class' as
+'a' continues to be a stopword.<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-478</a>: Updated the list of Unicode code point ranges for CJK
+(now split into CJ and K) in StandardAnalyzer.<br />(John Wang and
+Steven Rowe via Otis Gospodnetic)</li>
+      <li>Modified some CJK Unicode code point ranges in StandardTokenizer.jj,
+and added a few more of them to increase CJK character coverage.
+Also documented some of the ranges.<br />(Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-489</a>: Add support for leading wildcard characters (*, ?) to
+QueryParser.  Default is to disallow them, as before.<br />(Steven Parkes via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-703</a>: QueryParser changed to default to use of ConstantScoreRangeQuery
+for range queries. Added useOldRangeQuery property to QueryParser to allow
+selection of old RangeQuery class if required.<br />(Mark Harwood)</li>
+      <li><a href="">LUCENE-543</a>: WildcardQuery now performs a TermQuery if the provided term
+does not contain a wildcard character (? or *), when previously a
+StringIndexOutOfBoundsException was thrown.<br />(Michael Busch via Erik Hatcher)</li>
+      <li><a href="">LUCENE-726</a>: Removed the use of deprecated doc.fields() method and
+Enumeration.<br />(Michael Busch via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-436</a>: Removed finalize() in TermInfosReader and SegmentReader,
+and added a call to enumerators.remove() in TermInfosReader.close().
+The finalize() overrides were added to help with a pre-1.4.2 JVM bug
+that has since been fixed, plus we no longer support pre-1.4.2 JVMs.<br />(Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-771</a>: The default location of the write lock is now the
+index directory, and is named simply "write.lock" (without a big
+digest prefix).  The system properties "org.apache.lucene.lockDir"
+nor "" are no longer used as the global directory
+for storing lock files, and the LOCK_DIR field of FSDirectory is
+now deprecated.<br />(Mike McCandless)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.1.0.new_features')">New features</a>&nbsp;&nbsp;&nbsp;(15)
+    <ol id="2.1.0.new_features">
+      <li><a href="">LUCENE-503</a>: New ThaiAnalyzer and ThaiWordFilter in contrib/analyzers<br />(Samphan Raruenrom via Chris Hostetter)</li>
+      <li><a href="">LUCENE-545</a>: New FieldSelector API and associated changes to
+IndexReader and implementations.  New Fieldable interface for use
+with the lazy field loading mechanism.<br />(Grant Ingersoll and Chuck
+Williams via Grant Ingersoll)</li>
+      <li><a href="">LUCENE-676</a>: Move Solr's PrefixFilter to Lucene core.<br />(Yura
+Smolsky, Yonik Seeley)</li>
+      <li><a href="">LUCENE-678</a>: Added NativeFSLockFactory, which implements locking
+using OS native locking (via java.nio.*).<br />(Michael McCandless via
+Yonik Seeley)</li>
+      <li><a href="">LUCENE-544</a>: Added the ability to specify different boosts for
+different fields when using MultiFieldQueryParser<br />(Matt Ericson
+via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-528</a>: New IndexWriter.addIndexesNoOptimize() that doesn't
+optimize the index when adding new segments, only performing
+merges as needed.<br />(Ning Li via Yonik Seeley)</li>
+      <li><a href="">LUCENE-573</a>: QueryParser now allows backslash escaping in
+quoted terms and phrases.<br />(Michael Busch via Yonik Seeley)</li>
+      <li><a href="">LUCENE-716</a>: QueryParser now allows specification of Unicode
+characters in terms via a unicode escape of the form \uXXXX<br />(Michael Busch via Yonik Seeley)</li>
+      <li><a href="">LUCENE-709</a>: Added RAMDirectory.sizeInBytes(), IndexWriter.ramSizeInBytes()
+and IndexWriter.flushRamSegments(), allowing applications to
+control the amount of memory used to buffer documents.<br />(Chuck Williams via Yonik Seeley)</li>
+      <li><a href="">LUCENE-723</a>: QueryParser now parses *:* as MatchAllDocsQuery<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-741</a>: Command-line utility for modifying or removing norms
+on fields in an existing index.  This is mostly based on <a href="">LUCENE-496</a>
+and lives in contrib/miscellaneous.<br />(Chris Hostetter, Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-759</a>: Added NGramTokenizer and EdgeNGramTokenizer classes and
+their passing unit tests.<br />(Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-565</a>: Added methods to IndexWriter to more efficiently
+handle updating documents (the "delete then add" use case).  This
+is intended to be an eventual replacement for the existing
+IndexModifier.  Added IndexWriter.flush() (renamed from
+flushRamSegments()) to flush all pending updates (held in RAM), to
+the Directory.<br />(Ning Li via Mike McCandless)</li>
+      <li><a href="">LUCENE-762</a>: Added in SIZE and SIZE_AND_BREAK FieldSelectorResult options
+which allow one to retrieve the size of a field without retrieving the
+actual field.<br />(Chuck Williams via Grant Ingersoll)</li>
+      <li><a href="">LUCENE-799</a>: Properly handle lazy, compressed fields.<br />(Mike Klaas via Grant Ingersoll)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.1.0.api_changes')">API Changes</a>&nbsp;&nbsp;&nbsp;(19)
+    <ol id="2.1.0.api_changes">
+      <li><a href="">LUCENE-438</a>: Remove "final" from Token, implement Cloneable, allow
+changing of termText via setTermText().<br />(Yonik Seeley)</li>
+      <li> has been deprecated
+and is supposed to be replaced with the WordlistLoader class in
+package org.apache.lucene.analysis<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-609</a>: Revert return type of Document.getField(s) to Field
+for backward compatibility, added new Document.getFieldable(s)
+for access to new lazy loaded fields.<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-608</a>: Document.fields() has been deprecated and a new method
+Document.getFields() has been added that returns a List instead of
+an Enumeration<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-605</a>: New Explanation.isMatch() method and new ComplexExplanation
+subclass allows explain methods to produce Explanations which model
+"matching" independent of having a positive value.<br />(Chris Hostetter)</li>
+      <li><a href="">LUCENE-621</a>: New static methods IndexWriter.setDefaultWriteLockTimeout
+and IndexWriter.setDefaultCommitLockTimeout for overriding default
+timeout values for all future instances of IndexWriter (as well
+as for any other classes that may reference the static values,
+ie: IndexReader).<br />(Michael McCandless via Chris Hostetter)</li>
+      <li><a href="">LUCENE-638</a>: FSDirectory.list() now only returns the directory's
+Lucene-related files. Thanks to this change one can now construct
+a RAMDirectory from a file system directory that contains files
+not related to Lucene.<br />(Simon Willnauer via Daniel Naber)</li>
+      <li><a href="">LUCENE-635</a>: Decoupling locking implementation from Directory
+implementation.  Added set/getLockFactory to Directory and moved
+all locking code into subclasses of abstract class LockFactory.
+FSDirectory and RAMDirectory still default to their prior locking
+implementations, but now you can mix &amp; match, for example using
+SingleInstanceLockFactory (ie, in memory locking) locking with an
+FSDirectory.  Note that now you must call setDisableLocks before
+the instantiation a FSDirectory if you wish to disable locking
+for that Directory.<br />(Michael McCandless, Jeff Patterson via Yonik Seeley)</li>
+      <li><a href="">LUCENE-657</a>: Made FuzzyQuery non-final and inner ScoreTerm protected.<br />(Steven Parkes via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-701</a>: Lockless commits: a commit lock is no longer required
+when a writer commits and a reader opens the index.  This includes
+a change to the index file format (see docs/fileformats.html for
+details).  It also removes all APIs associated with the commit
+lock &amp; its timeout.  Readers are now truly read-only and do not
+block one another on startup.  This is the first step to getting
+Lucene to work correctly over NFS (second step is
+<a href="">LUCENE-710</a>).<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-722</a>: DEFAULT_MIN_DOC_FREQ was misspelled DEFALT_MIN_DOC_FREQ
+in Similarity's MoreLikeThis class. The misspelling has been
+replaced by the correct spelling.<br />(Andi Vajda via Daniel Naber)</li>
+      <li><a href="">LUCENE-738</a>: Reduce the size of the file that keeps track of which
+documents are deleted when the number of deleted documents is
+small.  This changes the index file format and cannot be
+read by previous versions of Lucene.<br />(Doron Cohen via Yonik Seeley)</li>
+      <li><a href="">LUCENE-756</a>: Maintain all norms in a single .nrm file to reduce the
+number of open files and file descriptors for the non-compound index
+format.  This changes the index file format, but maintains the
+ability to read and update older indices. The first segment merge
+on an older format index will create a single .nrm file for the new
+segment.<br />(Doron Cohen via Yonik Seeley)</li>
+      <li><a href="">LUCENE-732</a>: DateTools support has been added to QueryParser, with
+setters for both the default Resolution, and per-field Resolution.
+For backwards compatibility, DateField is still used if no Resolutions
+are specified.<br />(Michael Busch via Chris Hostetter)</li>
+      <li>Added isOptimized() method to IndexReader.<br />(Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-773</a>: Deprecate the FSDirectory.getDirectory(*) methods that
+take a boolean "create" argument.  Instead you should use
+IndexWriter's "create" argument to create a new index.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-780</a>: Add a static Directory.copy() method to copy files
+from one Directory to another.<br />(Jiri Kuhn via Mike McCandless)</li>
+      <li><a href="">LUCENE-773</a>: Added Directory.clearLock(String name) to forcefully
+remove an old lock.  The default implementation is to ask the
+lockFactory (if non null) to clear the lock.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-795</a>: Directory.renameFile() has been deprecated as it is
+not used anymore inside Lucene.<br />(Daniel Naber)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.1.0.bug_fixes')">Bug fixes</a>&nbsp;&nbsp;&nbsp;(32)
+    <ol id="2.1.0.bug_fixes">
+      <li>Fixed the web application demo (built with "ant war-demo") which
+didn't work because it used a QueryParser method that had
+been removed<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-583</a>: ISOLatin1AccentFilter fails to preserve positionIncrement<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-575</a>: SpellChecker min score is incorrectly changed by suggestSimilar<br />(Karl Wettin via Yonik Seeley)</li>
+      <li><a href="">LUCENE-587</a>: Explanation.toHtml was producing malformed HTML<br />(Chris Hostetter)</li>
+      <li>Fix to allow MatchAllDocsQuery to be used with RemoteSearcher<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-601</a>: RAMDirectory and RAMFile made Serializable<br />(Karl Wettin via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-557</a>: Fixes to BooleanQuery and FilteredQuery so that the score
+Explanations match up with the real scores.<br />(Chris Hostetter)</li>
+      <li><a href="">LUCENE-607</a>: ParallelReader's TermEnum fails to advance properly to
+new fields<br />(Chuck Williams, Christian Kohlschuetter via Yonik Seeley)</li>
+      <li><a href="">LUCENE-610</a>,<a href="">LUCENE-611</a>: Simple syntax changes to allow compilation with ecj:
+disambiguate inner class scorer's use of doc() in BooleanScorer2,
+other test code changes.<br />(DM Smith via Yonik Seeley)</li>
+      <li><a href="">LUCENE-451</a>: All core query types now use ComplexExplanations so that
+boosts of zero don't confuse the BooleanWeight explain method.<br />(Chris Hostetter)</li>
+      <li><a href="">LUCENE-593</a>: Fixed LuceneDictionary's inner Iterator<br />(KÃ¥re Fiedler Christiansen via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-641</a>: fixed an off-by-one bug with IndexWriter.setMaxFieldLength()<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-659</a>: Make PerFieldAnalyzerWrapper delegate getPositionIncrementGap()
+to the correct analyzer for the field.<br />(Chuck Williams via Yonik Seeley)</li>
+      <li><a href="">LUCENE-650</a>: Fixed NPE in Locale specific String Sort when Document
+has no value.<br />(Oliver Hutchison via Chris Hostetter)</li>
+      <li><a href="">LUCENE-683</a>: Fixed data corruption when reading lazy loaded fields.<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-678</a>: Fixed bug in NativeFSLockFactory which caused the same
+lock to be shared between different directories.<br />(Michael McCandless via Yonik Seeley)</li>
+      <li><a href="">LUCENE-690</a>: Fixed thread unsafe use of IndexInput by lazy loaded fields.<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-696</a>: Fix bug when scorer for DisjunctionMaxQuery has skipTo()
+called on it before next().<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-569</a>: Fixed SpanNearQuery bug, for 'inOrder' queries it would fail
+to recognize ordered spans if they overlapped with unordered spans.<br />(Paul Elschot via Chris Hostetter)</li>
+      <li><a href="">LUCENE-706</a>: Updated fileformats.xml|html concerning the docdelta value
+in the frequency file.<br />(Johan Stuyts, Doron Cohen via Grant Ingersoll)</li>
+      <li><a href="">LUCENE-715</a>: Fixed private constructor in to
+properly release the acquired write lock if there is an
+IOException after acquiring the write lock but before finishing
+instantiation.<br />(Matthew Bogosian via Mike McCandless)</li>
+      <li><a href="">LUCENE-651</a>: Multiple different threads requesting the same
+FieldCache entry (often for Sorting by a field) at the same
+time caused multiple generations of that entry, which was
+detrimental to performance and memory use.<br />(Oliver Hutchison via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-717</a>: Fixed build.xml not to fail when there is no lib dir.<br />(Doron Cohen via Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-728</a>: Removed duplicate/old MoreLikeThis and SimilarityQueries
+classes from contrib/similarity, as their new home is under
+contrib/queries.<br />(Otis Gospodnetic)</li>
+      <li><a href="">LUCENE-669</a>: Do not double-close the RandomAccessFile in
+FSIndexInput/Output during finalize().  Besides sending an
+IOException up to the GC, this may also be the cause intermittent
+"The handle is invalid" IOExceptions on Windows when trying to
+close readers or writers.<br />(Michael Busch via Mike McCandless)</li>
+      <li><a href="">LUCENE-702</a>: Fix IndexWriter.addIndexes(*) to not corrupt the index
+on any exceptions (eg disk full).  The semantics of these methods
+is now transactional: either all indices are merged or none are.
+Also fixed IndexWriter.mergeSegments (called outside of
+addIndexes(*) by addDocument, optimize, flushRamSegments) and
+IndexReader.commit() (called by close) to clean up and keep the
+instance state consistent to what's actually in the index (Mike
+      <li><a href="">LUCENE-129</a>: Change finalizers to do "try {...} finally
+{super.finalize();}" to make sure we don't miss finalizers in
+classes above us.<br />(Esmond Pitt via Mike McCandless)</li>
+      <li><a href="">LUCENE-754</a>: Fix a problem introduced by <a href="">LUCENE-651</a>, causing
+IndexReaders to hang around forever, in addition to not
+fixing the original FieldCache performance problem.<br />(Chris Hostetter, Yonik Seeley)</li>
+      <li><a href="">LUCENE-140</a>: Fix IndexReader.deleteDocument(int docNum) to
+correctly raise ArrayIndexOutOfBoundsException when docNum is too
+large.  Previously, if docNum was only slightly too large (within
+the same multiple of 8, ie, up to 7 ints beyond maxDoc), no
+exception would be raised and instead the index would become
+silently corrupted.  The corruption then only appears much later,
+in mergeSegments, when the corrupted segment is merged with
+segment(s) after it.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-768</a>: Fix case where an Exception during deleteDocument,
+undeleteAll or setNorm in IndexReader could leave the reader in a
+state where close() fails to release the write lock.<br />(Mike McCandless)</li>
+      <li>Remove "tvp" from known index file extensions because it is
+never used.<br />(Nicolas Lalevée via Bernhard Messer)</li>
+      <li><a href="">LUCENE-767</a>: Change how SegmentReader.maxDoc() is computed to not
+rely on file length check and instead use the SegmentInfo's
+docCount that's already stored explicitly in the index.  This is a
+defensive bug fix (ie, there is no known problem seen "in real
+life" due to this, just a possible future problem).<br />(Chuck
+Williams via Mike McCandless)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.1.0.optimizations')">Optimizations</a>&nbsp;&nbsp;&nbsp;(16)
+    <ol id="2.1.0.optimizations">
+      <li><a href="">LUCENE-586</a>: TermDocs.skipTo() is now more efficient for
+multi-segment indexes.  This will improve the performance of many
+types of queries against a non-optimized index.<br />(Andrew Hudson
+via Yonik Seeley)</li>
+      <li><a href="">LUCENE-623</a>: RAMDirectory.close now nulls out its reference to all
+internal "files", allowing them to be GCed even if references to the
+RAMDirectory itself still exist.<br />(Nadav Har'El via Chris Hostetter)</li>
+      <li><a href="">LUCENE-629</a>: Compressed fields are no longer uncompressed and
+recompressed during segment merges (e.g. during indexing or
+optimizing), thus improving performance .<br />(Michael Busch via Otis
+      <li><a href="">LUCENE-388</a>: Improve indexing performance when maxBufferedDocs is
+large by keeping a count of buffered documents rather than
+counting after each document addition.<br />(Doron Cohen, Paul Smith,
+Yonik Seeley)</li>
+      <li>Modified TermScorer.explain to use TermDocs.skipTo() instead of
+looping through docs.<br />(Grant Ingersoll)</li>
+      <li><a href="">LUCENE-672</a>: New indexing segment merge policy flushes all
+buffered docs to their own segment and delays a merge until
+mergeFactor segments of a certain level have been accumulated.
+This increases indexing performance in the presence of deleted
+docs or partially full segments as well as enabling future
+NOTE: this also fixes an "under-merging" bug whereby it is
+possible to get far too many segments in your index (which will
+drastically slow down search, risks exhausting file descriptor
+limit, etc.).  This can happen when the number of buffered docs
+at close, plus the number of docs in the last non-ram segment is
+greater than mergeFactor.<br />(Ning Li, Yonik Seeley)</li>
+      <li>Lazy loaded fields unnecessarily retained an extra copy of loaded
+String data.<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-443</a>: ConjunctionScorer performance increase.  Speed up
+any BooleanQuery with more than one mandatory clause.<br />(Abdul Chaudhry, Paul Elschot via Yonik Seeley)</li>
+      <li><a href="">LUCENE-365</a>: DisjunctionSumScorer performance increase of
+~30%. Speeds up queries with optional clauses.<br />(Paul Elschot via
+Yonik Seeley)</li>
+      <li><a href="">LUCENE-695</a>: Optimized BufferedIndexInput.readBytes() for medium
+size buffers, which will speed up merging and retrieving binary
+and compressed fields.<br />(Nadav Har'El via Yonik Seeley)</li>
+      <li><a href="">LUCENE-687</a>: Lazy skipping on proximity file speeds up most
+queries involving term positions, including phrase queries.<br />(Michael Busch via Yonik Seeley)</li>
+      <li><a href="">LUCENE-714</a>: Replaced 2 cases of manual for-loop array copying
+with calls to System.arraycopy instead, in<br />(Nicolas Lalevee via Mike McCandless)</li>
+      <li><a href="">LUCENE-729</a>: Non-recursive skipTo and next implementation of
+TermDocs for a MultiReader.  The old implementation could
+recurse up to the number of segments in the index.<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-739</a>: Improve segment merging performance by reusing
+the norm array across different fields and doing bulk writes
+of norms of segments with no deleted docs.<br />(Michael Busch via Yonik Seeley)</li>
+      <li><a href="">LUCENE-745</a>: Add BooleanQuery.clauses(), allowing direct access
+to the List of clauses and replaced the internal synchronized Vector
+with an unsynchronized List.<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-750</a>: Remove finalizers from FSIndexOutput and move the
+FSIndexInput finalizer to the actual file so all clones don't
+register a new finalizer.<br />(Yonik Seeley)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.1.0.test_cases')">Test Cases</a>&nbsp;&nbsp;&nbsp;(3)
+    <ol id="2.1.0.test_cases">
+      <li>Added<br />(Grant Ingersoll)</li>
+      <li>Added<br />(Benson Margulies via Mike McCandless)</li>
+      <li><a href="">LUCENE-744</a> Append the property onto the temporary directory
+that is created so it doesn't interfere with other users.<br />(Grant Ingersoll)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.1.0.documentation')">Documentation</a>&nbsp;&nbsp;&nbsp;(11)
+    <ol id="2.1.0.documentation">
+      <li>Added style sheet to xdocs named lucene.css and included in the
+Anakia VSL descriptor.<br />(Grant Ingersoll)</li>
+      <li>Added scoring.xml document into xdocs.  Updated
+scoring formula.(Grant Ingersoll and Steve Rowe.  Updates from:
+Michael McCandless, Doron Cohen, Chris Hostetter, Doug Cutting).
+Issue 664.
+      <li>Added javadocs for<br />(Grant Ingersoll)</li>
+      <li>Moved xdocs directory to src/site/src/documentation/content/xdocs per
+Issue 707.  Site now builds using Forrest, just like the other Lucene
+siblings.  See
+for info on updating the website.<br />(Grant Ingersoll with help from Steve Rowe,
+Chris Hostetter, Doug Cutting, Otis Gospodnetic, Yonik Seeley)</li>
+      <li>Added in Developer and System Requirements sections under Resources<br />(Grant Ingersoll)</li>
+      <li><a href="">LUCENE-713</a> Updated the Term Vector section of File Formats to include
+documentation on how Offset and Position info are stored in the TVF file.<br />(Grant Ingersoll, Samir Abdou)</li>
+      <li>Added in link to Clover Test Code Coverage Reports under the Develop
+section in Resources<br />(Grant Ingersoll)</li>
+      <li><a href="">LUCENE-748</a>: Added details for semantics of IndexWriter.close on
+hitting an Exception.<br />(Jed Wesley-Smith via Mike McCandless)</li>
+      <li>Added some text about what is contained in releases.<br />(Eric Haszlakiewicz via Grant Ingersoll)</li>
+      <li><a href="">LUCENE-758</a>: Fix javadoc to clarify that RAMDirectory(Directory)
+makes a full copy of the starting Directory.<br />(Mike McCandless)</li>
+      <li><a href="">LUCENE-764</a>: Fix javadocs to detail temporary space requirements
+for IndexWriter's optimize(), addIndexes(*) and addDocument(...)
+methods.<br />(Mike McCandless)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('')">Build</a>&nbsp;&nbsp;&nbsp;(3)
+    <ol id="">
+      <li>Added in clover test code coverage per <a href="">LUCENE-721</a>
+To enable clover code coverage, you must have clover.jar in the ANT
+classpath and specify -Drun.clover=true on the command line.<br />(Michael Busch and Grant Ingersoll)</li>
+      <li>Added a sysproperty in common-build.xml per Lucene 752 to map to
+${build.dir}/test just like the tempDir sysproperty.
+      <li><a href="">LUCENE-757</a> Added new target named init-dist that does setup for
+distribution of both binary and source distributions.  Called by package
+and package-*-src
+    </ol>
+  </li>
+<h3><a href="javascript:toggleList('2.0.0')">Release 2.0.0  [2006-05-26]</a></h3>
+<ul id="2.0.0">
+  <li><a href="javascript:toggleList('2.0.0.api_changes')">API Changes</a>&nbsp;&nbsp;&nbsp;(4)
+    <ol id="2.0.0.api_changes">
+      <li>All deprecated methods and fields have been removed, except
+DateField, which will still be supported for some time
+so Lucene can read its date fields from old indexes<br />(Yonik Seeley &amp; Grant Ingersoll)</li>
+      <li>DisjunctionSumScorer is no longer public.<br />(Paul Elschot via Otis Gospodnetic)</li>
+      <li>Creating a Field with both an empty name and an empty value
+now throws an IllegalArgumentException<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-301</a>: Added new IndexWriter({String,File,Directory},
+Analyzer) constructors that do not take a boolean "create"
+argument.  These new constructors will create a new index if
+necessary, else append to the existing one.<br />(Dan Armbrust via
+Mike McCandless)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.0.0.new_features')">New features</a>&nbsp;&nbsp;&nbsp;(2)
+    <ol id="2.0.0.new_features">
+      <li><a href="">LUCENE-496</a>: Command line tool for modifying the field norms of an
+existing index; added to contrib/miscellaneous.<br />(Chris Hostetter)</li>
+      <li><a href="">LUCENE-577</a>: SweetSpotSimilarity added to contrib/miscellaneous.<br />(Chris Hostetter)</li>
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('2.0.0.bug_fixes')">Bug fixes</a>&nbsp;&nbsp;&nbsp;(16)
+    <ol id="2.0.0.bug_fixes">
+      <li><a href="">LUCENE-330</a>: Fix issue of FilteredQuery not working properly within
+BooleanQuery.<br />(Paul Elschot via Erik Hatcher)</li>
+      <li><a href="">LUCENE-515</a>: Make ConstantScoreRangeQuery and ConstantScoreQuery work
+with RemoteSearchable.<br />(Philippe Laflamme via Yonik Seeley)</li>
+      <li>Added methods to get/set writeLockTimeout and commitLockTimeout in
+IndexWriter. These could be set in Lucene 1.4 using a system property.
+This feature had been removed without adding the corresponding
+getter/setter methods.<br />(Daniel Naber)</li>
+      <li><a href="">LUCENE-413</a>: Fixed ArrayIndexOutOfBoundsException exceptions
+when using SpanQueries.<br />(Paul Elschot via Yonik Seeley)</li>
+      <li>Implemented FilterIndexReader.getVersion() and isCurrent()<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-540</a>: Fixed a bug with IndexWriter.addIndexes(Directory[])
+that sometimes caused the index order of documents to change.<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-526</a>: Fixed a bug in FieldSortedHitQueue that caused
+subsequent String sorts with different locales to sort identically.<br />(Paul Cowan via Yonik Seeley)</li>
+      <li><a href="">LUCENE-541</a>: Add missing extractTerms() to DisjunctionMaxQuery<br />(Stefan Will via Yonik Seeley)</li>
+      <li><a href="">LUCENE-514</a>: Added getTermArrays() and extractTerms() to
+MultiPhraseQuery<br />(Eric Jain &amp; Yonik Seeley)</li>
+      <li><a href="">LUCENE-512</a>: Fixed ClassCastException in ParallelReader.getTermFreqVectors<br />(frederic via Yonik)</li>
+      <li><a href="">LUCENE-352</a>: Fixed bug in SpanNotQuery that manifested as
+NullPointerException when "exclude" query was not a SpanTermQuery.<br />(Chris Hostetter)</li>
+      <li><a href="">LUCENE-572</a>: Fixed bug in SpanNotQuery hashCode, was ignoring exclude clause<br />(Chris Hostetter)</li>
+      <li><a href="">LUCENE-561</a>: Fixed some ParallelReader bugs. NullPointerException if the reader
+didn't know about the field yet, reader didn't keep track if it had deletions,
+and deleteDocument calls could circumvent synchronization on the subreaders.<br />(Chuck Williams via Yonik Seeley)</li>
+      <li><a href="">LUCENE-556</a>: Added empty extractTerms() implementation to MatchAllDocsQuery and
+ConstantScoreQuery in order to allow their use with a MultiSearcher.<br />(Yonik Seeley)</li>
+      <li><a href="">LUCENE-546</a>: Removed 2GB file size limitations for RAMDirectory.<br />(Peter Royal, Michael Chan, Yonik Seeley)</li>
+      <li><a href="">LUCENE-485</a>: Don't hold commit lock while removing obsolete index
+files.<br />(Luc Vanlerberghe via cutting)</li>
+    </ol>
+  </li>
+<h3><a href="javascript:toggleList('1.9.1')">Release 1.9.1  [2006-03-02]</a></h3>
+<ul id="1.9.1">
+  <li><a href="javascript:toggleList('1.9.1.bug_fixes')">Bug fixes</a>&nbsp;&nbsp;&nbsp;(1)
+    <ol id="1.9.1.bug_fixes">
+      <li><a href="">LUCENE-511</a>: Fix a bug in the BufferedIndexOutput optimization
+introduced in 1.9-final.<br />(Shay Banon &amp; Steven Tamm via cutting)</li>
+    </ol>
+  </li>
+<h3><a href="javascript:toggleList('1.9_final')">Release 1.9 final  [2006-02-27]</a></h3>
+    <ul id="1.9_final">
+      <li>Note that this release is mostly but not 100% source compatible with
+the previous release of Lucene (1.4.3). In other words, you should
+make sure your application compiles with this version of Lucene before
+you replace the old Lucene JAR with the new one.  Many methods have
+been deprecated in anticipation of release 2.0, so deprecation
+warnings are to be expected when upgrading from 1.4.3 to 1.9.
+    </ul>
+    <ol id="1.9_final.bug_fixes">
+      <li>The fix that made IndexWriter.setMaxBufferedDocs(1) work had negative
+effects on indexing performance and has thus been reverted. The
+argument for setMaxBufferedDocs(int) must now at least be 2, otherwise
+an exception is thrown.<br />(Daniel Naber)</li>
+    </ol>
+    <ol id="1.9_final.optimizations">
+      <li>Optimized BufferedIndexOutput.writeBytes() to use
+System.arraycopy() in more cases, rather than copying byte-by-byte.<br />(Lukas Zapletal via Cutting)</li>
+    </ol>
+<h3><a href="javascript:toggleList('1.9_rc1')">Release 1.9 RC1  [2006-02-21]</a></h3>
+<ul id="1.9_rc1">
+  <li><a href="javascript:toggleList('1.9_rc1.requirements')">Requirements</a>&nbsp;&nbsp;&nbsp;(1)
+    <ol id="1.9_rc1.requirements">
+      <li>To compile and use Lucene you now need Java 1.4 or later.
+    </ol>
+  </li>
+  <li><a href="javascript:toggleList('1.9_rc1.changes_in_runtime_behavior')">Changes in runtime behavior</a>&nbsp;&nbsp;&nbsp;(9)
+    <ol id="1.9_rc1.changes_in_runtime_behavior">
+      <li>FuzzyQuery can no longer throw a TooManyClauses exception. If a
+FuzzyQuery expands to more than BooleanQuery.maxClauseCount
+terms only the BooleanQuery.maxClauseCount most similar terms
+go into the rewritten query and thus the exception is avoided.<br />(Christoph)</li>
+      <li>Changed system property from "org.apache.lucene.lockdir" to
+"org.apache.lucene.lockDir", so that its casing follows the existing
+pattern used in other Lucene system properties.<br />(Bernhard)</li>
+      <li>The terms of RangeQueries and FuzzyQueries are now converted to
+lowercase by default (as it has been the case for PrefixQueries
+and WildcardQueries before). Use setLowercaseExpandedTerms(false)
+to disable that behavior but note that this also affects
+PrefixQueries and WildcardQueries.<br />(Daniel Naber)</li>
+      <li>Document frequency that is computed when MultiSearcher is used is now
+computed correctly and "globally" across subsearchers and indices, while
+before it used to be computed locally to each index, which caused

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