elasticsearch/docs/reference/migration/migrate_6_0/java.asciidoc

[[breaking_60_java_changes]]
=== Java API changes

==== `setSource` methods require XContentType

Previously the `setSource` methods and other methods that accepted byte/string representations of
an object source did not require the XContentType to be specified. The auto-detection of the content
type is no longer used, so these methods now require the XContentType as an additional argument when
providing the source in bytes or as a string.