elasticsearch 0.20.0.RC1. 版发布啦

Upgrade Notes:

• Upgrading from 0.19 requires a full cluster restart.

Breaking changes:

• Introduce Text abstraction, allowing for improved representation of strings, apply to HighlightedField (breaks backward for Java API from String to Text) (#2093)
• Stored binary fields to change internal representation (break Java API if used) (#2092)
• Transport: Add header token allowing to more easily identify when illegal content is being sent (#2280)

New features:

• Add types exists api (#2273)
• Add has_parent query (#2254)
• Add has_parent filter (#2243)
• Add ignore_indices option (#2209)
• Bulk UDP (#2201)
• Explain API (#2184)
• Support GeoShape searching and indexing (#2169)
• Multi match query (#2153)
• Cluster Nodes hot_threads API (#2134)
• Support wildcard and +/- notation for multi index APIs (#2074)
• Auto import dangling indices (#2067)
• Store Throttling (node level and/or index level) with options on merge or all (#2041)
• Stored Fields Compression (#2037)
• Allow to customize quote analyzer to be used when quoting text in a query_string (#1931)
• Index Warmup API (#1913)
• Upgrade to Lucene 3.6 (#1862)
• Cluster Reroute API: Allow to specify allocation commands (#2256)
• Compression: Support snappy as a compression option (#2081)
• Create Index: Allow to provide index warmers when creating an index (#1917)
• Index Blocks: Add index.blocks.write, index.blocks.read, and index.blocks.metadata settings (#1771)
• Index Template: Allow to register index warmers in an index template (#1916)
• Mapping: Add index_options (deprecating omit_term_freq_and_positions) (#2346)
• Query DSL: query_string syntax to support wildcard fieldnames in the query text (#1936)
• Store Compression: Term Vector Vector (#2049)
• Update API: Allow to upsert, provide a doc and index it if the doc does not exists (#2008)