anchor.diff:  If a pipeline specifies an `ecs` value, the value is ignored.
   ====
   
  -.Mapping API endpoints containing mapping types have been removed.
  -[%collapsible]
  -====
  -*Details* +
  -The typed REST endpoints of the update mapping, get mapping and get field mapping
  -APIs have been removed in favour of their typeless REST endpoints, since indexes
  -no longer contain types, these typed endpoints are obsolete.
  -
  -*Impact* +
  -Use the typeless REST endpoints to update and retrieve mappings. Requests
  -submitted to the typed mapping API endpoints will return an error.
  -====
  -
   .The `include_type_name` query parameter has been removed.
   [%collapsible]
   ====
  
positive.code: *Impact* +
  Use the replacement REST API endpoints. Requests submitted to the `_xpack`
  API endpoints will return an error.
  ====
  
  [[remove-term-order-key]]
  
negative.code: 
  *Impact* +
  Specify unencoded index names for reindex from remote requests.
  ====
  
  .In the reindex, delete by query, and update by query APIs, the `size` parameter has been renamed.
  