Sourced from elasticsearch-dsl's changelog.

7.1.0 (2019-10-23)

• Optimistic concurrent control for Document.delete
• Removing deprecated DocType
• Proper count caching for ES 7.x
• Support for multiplexer token filter
• Don't substitute for __ in FacetedSearch

7.0.0 (2019-04-26)

• Compatibility with Elasticsearch 7.x
• Document.save() now returns "created" or "updated"
• Dropped support for Python 2.6, 3.2, and 3.3
• When using fields the values are no longer merged into the body of the document and have to be accessed via .meta.fields only

6.4.0 (2019-04-26)

• Index.document now correctly sets the Document's _index only when using default index ([#1091](https://github-redirect.dependabot.com/elasticsearch/elasticsearch-dsl-py/issues/1091))
• Document inheritance allows overriding Object and Nested field metadata like dynamic
• adding auto_date_histogram aggregation
• Do not change data in place when (de)serializing

6.3.1 (2018-12-05)

• Analyzer.simulate now supports built-in analyzers
• proper (de)serialization of the Range wrapper
• Added search_analyzer to Completion field

6.3.0 (2018-11-21)

• Fixed logic around defining a different doc_type name.
• Added retry_on_conflict parameter to Document.update.
• fields defined on an index are now used to (de)serialize the data even when not defined on a Document
• Allow Index.analyzer to construct the analyzer
• Detect conflict in analyzer definitions when calling Index.analyzer
• Detect conflicting mappings when creating an index
• Add simulate method to analyzer object to test the analyzer using the _analyze API.
• Add script and script_id options to Document.update
• Facet can now use other metric than doc_count
• Range objects to help with storing and working with _range fields
• Improved behavior of Index.save where it does a better job when index already exists
• Composite aggregations now correctly support multiple sources aggs
• UpdateByQuery implementated by @​emarcey

• 24abee3 Version bump to 7.1.0
• 2c099d5 Adding RankFeature and RankFeature
• 38f2f5e adding distance feature query
• 4f63b2d Fixing the link to CLA
• e74ab2c Do not allow __ to dot expansion in FacetedSearch
• 89200d2 Adding parent aggregation
• d77ee3b Allow proper definitions of multiplexer and conditional token filters
• e1b4653 Explain example in docs
• ec9f9c0 Merge branch 'master' into connection_interface_usage
• 2b63582 Fixes count cache logic according to 7.x API
• Additional commits viewable in compare view

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