Breaking changes:

• thrift definition params is conflict with c#’s keyword, rename to parameters. (#392)
• Geo Overhaul (work with multiple locations). (#414)
• Bulk API: Rename index to _index, type to _type and id to _id. (#421)
• Mapper: Allow to configure date_formats only on the root object mapper. (#437)

New features:

• Mapper: Dynamic Template Support. (#397)
• Groovy Plugin: Allow to run groovy code as scripts (custom_score, script_fields, and in different facets implementations). (#398)
• JavaScript Plugin: Allow to use javascript for scripts. (#401)
• Scripts: Allow to access _fields providing access to stored fields. (#402)
• Wikipedia River: A river to index wikipedia. (#403)
• Term Facet:
  • Use a script that provides the facets to index. (#410)
  • Allow to execute term facet on more than one field. (commit)
• Python Plugin: Allow to use python for scripts. (#418)
• Use Base64 encoding for UUID generation (auto generated doc ids, and node ids). (#422)
• Query DSL: Numeric Range Filter – A filter that uses the field data cache to perform numeric tests. (#435)

Enhancements:

• CouchDB River
  • Support couchdb filter query parameters. (#389) (fix in #394)
  • Support http auth. (#390)
  • Ignore _design/ documents. (commit)
  • Allow to define a javascript that can munge the changes stream. (#431)
• Gateway: Add gateway.expected_nodes for state recovery. (#404)
• Query DSL:
  • query_string / field to use the optimized match_all query when using * (or . (#413)
  • Fine grained filter caching control with sensible defaults. (#424)
  • Statistical Facet: Allow to compute statistical facets on more than one field. (#436)
• Twitter River: Support filter stream. (#416)
• Plugins:
  • Allow to place “extracted” plugins under the plugins directory. (#428)
  • plugins should now be in extracted format under ES_HOME/plugins. (#438)
• Scripting: Allow to define scripts within config/scripts, automatically compiled and can be referenced by name. (#429)
• Local Gateway: Don’t block meta operations (delete index) on an index that is not recovered due to not all shards being available. (#433)
• Cluster Admin API: add cluster_name to cluster health response. (commit)
• Improve automatic publish network address logic. (#439)

Bug fixes:

• /_cluster/nodes/stats is broken. (#391)
• Local Gateway: Possible failure to allocate shards to nodes when more than one index exists in the cluster (on full cluster restart). (#409)
• Thrift River: Rename Status.CONTINUE to Status.CONT (reserved word). (#415)

Internal:

• upgrade to groovy 1.7.5
• upgrade to aws sdk 1.0.11
• upgrade to Jackson 1.6.1
• Add the ability to run check index index.shard.check_index before starting a shard, used for internal testing (as it has a large overhead). (commit)