Apache Solr 4.6.0 - Changelog
What's new in Apache Solr 4.6.0:November 28th, 2013
- Many improvements and enhancements for shard splitting options
- New AnalyzingInfixLookupFactory to leverage the AnalyzingInfixSuggester
- New CollapsingQParserPlugin for high performance field collapsing on high cardinality fields
- New SolrJ APIs for collection management
- New DocBasedVersionConstraintsProcessorFactory providing support for user configured doc-centric versioning rules
- New default index format: Lucene46Codec
- New EnumField type
What's new in Apache Solr 4.5.1:October 25th, 2013
- Solr 4.5.1 contains a handful of bug fixes, including 2 that are considered quite severe.
What's new in Apache Solr 4.5.0:October 7th, 2013
- Custom sharding support, improved routing, and multi-threaded faceting.
What's new in Apache Solr 4.2.0:March 12th, 2013
- A read side REST API for the schema. Always wanted to introspect the schema over http? Now you can. Looks like the write side will be coming next.
- DocValues have been integrated into Solr. DocValues can be loaded up a lot faster than the field cache and can also use different compression algorithms as well as in RAM or on Disk representations. Faceting, sorting, and function queries all get to benefit. How about the OS handling faceting and sorting caches off heap? No more tuning 60 gigabyte heaps? How about a snappy new per segment DocValues faceting method? Improved numeric faceting? Sweet.
- Collection Aliasing. Got time based data? Want to re-index in a temporary collection and then swap it into production? Done. Stay tuned for Shard Aliasing.
- Collection API responses. The collections API was still very new in 4.0, and while it improved a fair bit in 4.1, responses were certainly needed, but missed the cut off. Initially, we made the decision to make the Collection API super fault tolerant, which made responses tougher to do. No one wants to hunt through logs files to see how things turned out. Done in 4.2.
- Interact with any collection on any node. Until 4.2, you could only interact with a node in your cluster if it hosted at least one replica of the collection you wanted to query/update. No longer - query any node, whether it has a piece of your intended collection or not and get a proxied response.
- Allow custom shard names so that new host addresses can take over for retired shards. Working on Amazon without elastic ips? This is for you.
- Lucene 4.2 optimizations such as compressed term vectors.
What's new in Apache Solr 3.3.0:July 3rd, 2011
- Grouping / Field Collapsing
- A new, automaton-based suggest/autocomplete implementation offering an order of magnitude smaller RAM consumption.
- KStemFilterFactory, an optimized implementation of a less aggressive stemmer for English.
- Solr defaults to a new, more efficient merge policy (TieredMergePolicy). See http://s.apache.org/merging for more information.
- Important bugfixes, including extremely high RAM usage in spellchecking.
- Bugfixes and improvements from Apache Lucene 3.3
What's new in Apache Solr 3.2.0:June 10th, 2011
- Ability to specify overwrite and commitWithin as request parameters when using the JSON update format
- TermQParserPlugin, useful when generating filter queries from terms returned from field faceting or the terms component.
- DebugComponent now supports using a NamedList to model Explanation objects in it's responses instead of Explanation.toString
- Improvements to the UIMA and Carrot2 integrations
- Bugfixes and improvements from Apache Lucene 3.2
What's new in Apache Solr 3.2.0:June 5th, 2011
- JSON update improvements were made.
- Search result clustering and UIMA integration were improved.
- Bugs were fixed.
What's new in Apache Solr 3.1.0:March 31st, 2011
- This is the first release since the Lucene/Solr merge and hence Solr's version number was bumped up to match Lucene (Solr 3.1 contains Lucene 3.1).
- Highlights include Numeric range facets, Spatial search, Velocity driven search UI at http://localhost:8983/solr/browse, a new termvector-based highlighter, an extended dismax (edismax) query parser, a new Auto Suggest component, the ability to sort by functions, JSON document indexing, CSV response format, and Apache UIMA integration for metadata extraction.
What's new in Apache Solr 1.4.1:June 25th, 2010
- This bugfix release for Solr 1.4 includes many Solr bugfixes, as well as Lucene bugfixes from Lucene 2.9.3.
What's new in Apache Solr 1.3:September 17th, 2008
- Distributed search capabilities were added.
- Numerous Lucene and other performance improvements were made.
- Multiple indexes in a single deployment are supported.
- The SolrJ Java client and a binary response protocol were added for faster client-server communication.
- Search components can be chained together to offer flexible query processing.
- Components include existing functionality like faceting and add features such as "More Like This", editorial boosting (query elevation), and spell checking.
- DataImportHandler was added for easily indexing database content into Solr.