Change record status: 
Project: 
Introduced in branch: 
11.4.x
Introduced in version: 
11.4.0
Description: 

The plugin node_search is now in the new sub-module of the Search module, search_node.

Any class extending \Drupal\node\Plugin\Search\NodeSearch should change to extending \Drupal\search_node\Plugin\Search\SearchNode

Impacts: 
Module developers
Themers