Version 3.3.0 of Apache Lucene
Release Notes: This release adds suggest/autocomplete functionality. It adds support for merging results from different shards (distributed search). There are improvements to result grouping, near-real-time, and index merging. Improved stemming capabilities.
Other releases
Release Notes: A bugfix release for 3.6.0.
Release Notes: This release improves auto-suggest, adds Japanese analysis, and improves "join".
Release Notes: This release adds suggest/autocomplete functionality. It adds support for merging results from different shards (distributed search). There are improvements to result grouping, near-real-time, and index merging. Improved stemming capabilities.
Release Notes: The ability to group search results was added. The IndexUpgrader tool was added. Near-realtime improvements were made. Document block indexing was implemented. Bugs were fixed.
Release Notes: This release contains numerous bugfixes and improvements since 2.9.3 / 3.0.2, including a memory leak in IndexWriter exacerbated by frequent commits, a file handle leak in IndexWriter when near-real-time readers are opened with compound file format enabled, a rare index corruption case on disk full, NumericRangeQuery / NumericRangeFilter sometimes returning incorrect results with bounds near Long.MIN_VALUE and Long.MAX_VALUE, and various thread safety issues. Lucene 2.9.4 can now also read indexes created by 3.0.x.
