anchor.diff:  The `?prefer_v2_templates` parameter is supported on the <<indices-create-index,Create Index>>,
   <<docs-index_,Index>>, <<docs-bulk,Bulk>>, <<docs-update,Update>>, and
   <<indices-rollover-index,Rollover>> APIs.
  +
  +*Impact* +
  +Update your workflow and applications to assume a default value of `true` for
  +the `prefer_v2_templates` query parameter.
   ====
  
positive.code: In Elasticsearch 7.7.0, the setting `cluster.remote.connect` was deprecated in
  favor of setting `node.remote_cluster_client`. In Elasticsearch 8.0.0, the
  setting `cluster.remote.connect` is removed.
  ====
  
  .The `node.local_storage` setting has been removed.
  
negative.code: If you have disabled ILM so that you can use another tool to manage Watcher
  indices, the newly introduced `xpack.watcher.use_ilm_index_management` setting
  may be set to false.
  
  *Impact* +
  Discontinue use of the removed settings. Specifying these settings in
  `elasticsearch.yml` will result in an error on startup.
  ====
  
  .The `prefer_v2_templates` parameter now defaults to `true` for several document and index APIs.
  