Incompatible changes:

Query DSL:

• Facet filter renamed to facet_filter. (See commit for #289)

New and enhancements in API:

• Geo support:
  • Support geo_point type. (#278)
  • Filters:
    • geo_distance filter. (#279)
    • geo_bounding_box filter. (#290)
    • geo_polygon filter. (#294)
  • Facets:
    • geo_distance facet. (#286)
  • Sort:
    • _geo_distance sort. (#306)
• Range Facet. (#287)
• Support dates in range facet. (commit)
• Add an option to provide the array of ranges “on” the field name itself. (commit, commit)
• Facets: Filter based facet. (#289)
• Support for custom script based sorting. (#293, commit)
• Add the ability to store the index name in the doc. (#292)
• Ability to return all stored fields with a *. (#296)
• Rename jmx settings to conform with casing (old casing also works). (commit), (docs)
• Update settings API, allowing to dynamically change the number_of_replicas for an index / indices. (#302), (docs)
• Terms facet:
  • Allow to control the ordering either by count (default), term, reverse_count and reverse_term. (#303, #314)
  • Allow to control the term and its inclusion using a script. (#304)
• Search API: Sort values are now returned per hit. (#305)
• Mappers: also use name as a smart lookup for field/property on top of indexName and fullName. (#309)
• Facets: Automatically filter by type for facets that use explicit field names that are prefixed by the type. (#310)
• EC2 Discovery ignoring instances with more than one security group. (#311)
• Remove memory monitor and move translog operations threshold to shard level setting. New setting for flush on translog operations is index.translog.flush_threshold, and defaults to 5000. (#312)
• Analysis: Add char_filter on top of tokenizer, filter, and analyzer. Add an html_strip char filter. (#315), (docs)
• Query DSL: custom score script, allow to use _score as well as score as the underlying query score. (#316)
• Transport: add global compression support (transport.tcp.compress) compressing all internal transport communication (using lzf). (#321)
• Recovery: Using transport compression explicitly when recovering an index from a peer shard. (#322)
• Support compression of the _source field. (docs)
• Added `standard_html_strip` analyzer that combines the standard analyzer with html_strip char filter. (commit)
• Indices status API:
  • add peer recovery status exposing both on going and summary when recovering from a peer shard (commit, commit)
  • add gateway recovery status exposing both on going and summary when recovering from a gateway (commit)
  • add snapshot status (either current one or the latest one executed) (commit)
  • add progress status (commit)
• Cluster Health API: Add initializing_shards and unassigned_shards to the response. (#330)
• List remote nodest storage information with a timeout. (commit)
• Add /_shutdown to the REST endpoints. (commit)
• Indexing Buffer Size: Refine default setting to 10% (from 40%) and add more settings. (#334)
• Add russian letter tokenizer. (commit docs need to be updated)
• Query DSL: Improve or and and filters to accept just array of filters. (#336)

Bug fixes:

• Put Mapping: When using a single node and updating a mapping, it is not marked as `acknowledged`. (#280)
• Search fails when sorting on a field that has no values in the hits returned. (#285)
• After gateway recovery, mappings keep being applied on each cluster change. (#295)
• REST API hang on a bogus call. (#297)
• Gateway: Chunk based storage broken, fails to recover from gateway. (#318)
• Document IDs need to be URL decoded when indexed. (#324)
• Gateway: Failure to read full translog from the gateway. (#328)
• boolean values cannot be searched with expected queries. (#327)
• filtered more_like_this doesn’t parse correctly. (#326)
• Can’t set “no stopwords” on analyzer. (#329)
• Should escape rn in exception message. (#332)
• Memcach: StreamCorruptedException when loading a cluster. (#300)

Internal:

• upgrade to jackson 1.5.5
• upgrade to guava r06
• upgrade to gradle 0.9-rc-1
• upgrade to memcached 2.5 (the protocol can be used for REST)
• upgrade to joda-time 1.6.1
• upgrade to aws-java-sdk-1.0.008
• remove ning async http client
• remove non blocking structures (Highly Scalable Java Utilities http://sourceforge.net/projects/high-scale-lib/)
• Change default calibrate_size_by_deletes for merge policy to true from false (this is what upcoming lucene version will use). (commit)
• Add ability to iterate over assigned shards, and add an extension point to control shard routing iteration in the broadcast based action support. (commit)