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OpenSearch/docs/reference/release-notes/7.7.asciidoc

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Add validation for dynamic templates (#52890) Backport of #51233 to the seven dot x branch. Tries to load a `Mapper` instance for the mapping snippet of a dynamic template. This should catch things like using an analyzer that is undefined or mapping attributes that are unused. This is best effort: * If `{{name}}` placeholder is used in the mapping snippet then validation is skipped. * If `match_mapping_type` is not specified then validation is performed for all mapping types. If parsing succeeds with a single mapping type then this the dynamic mapping is considered valid. If is detected that a dynamic template mapping snippet is invalid at mapping update time then the mapping update is failed for indices created on 8.0.0-alpha1 and later. For indices created on prior version a deprecation warning is omitted instead. In 7.x clusters the mapping update will never fail in case of an invalid dynamic template mapping snippet and a deprecation warning will always be omitted. Closes #17411 Closes #24419 Co-authored-by: Adrien Grand <jpountz@gmail.com>
2020-02-28 04:35:04 -05:00
[[release-notes-7.7.0]]
== {es} version 7.7.0
coming[7.7.0]
[[breaking-7.7.0]]
[float]
=== Breaking changes
Mapping::
* Dynamic mappings in indices created on 8.0 and later have stricter validation at mapping update time and
results in a deprecation warning for indices created in Elasticsearch 7.7.0 and later.
(e.g. incorrect analyzer settings or unknown field types). {pull}51233[#51233]