anchor.diff:  }' http://localhost:8983/api/cluster
   ----
   
  -NOTE: Until Solr 7.5, cluster properties supported a "collectionDefaults" key which is now deprecated. Using the API
  -structure for Solr 7.4 or Solr 7.5 with "collectionDefaults" will continue to work but the format of the properties
  -will automatically be converted to the new nested structure. Support for the "collectionDefaults" key will be
  -removed in Solr 9.
  +NOTE: Until Solr 7.5, cluster properties supported a `collectionDefaults` key which is now deprecated and
  +replaced with `defaults`. Using the `collectionDefaults` parameter in Solr 7.4 or 7.5 will continue to work
  + but the format of the properties will automatically be converted to the new nested structure.
  +Support for the "collectionDefaults" key will be removed in Solr 9.
   
   [[collectionprop]]
   == COLLECTIONPROP: Collection Properties
  
positive.code: </response>
  ----
  
  === Deeply Nested Cluster Properties ===
  
  ==== `defaults` ====
  It is possible to set cluster-wide default values for certain attributes of a collection.
  
  
  *Example 1: Set/update default values*
  [source]
  ----
  curl -X POST -H 'Content-type:application/json' --data-binary '
  
negative.code: }' http://localhost:8983/api/cluster
  ----
  
  *Unset the only value of `nrtReplicas`*
  [source]
  ----
  curl -X POST -H 'Content-type:application/json' --data-binary '
  