Change record status: 
Project: 
Introduced in branch: 
11.2.x
Introduced in version: 
11.2.0
Description: 

New ::getMultiple() methods have been added to VariationCache and RenderCache to allow multiple render cache items to be fetched at once. These are mostly intended to be used internally by Drupal core to support the new CachedPlaceholderStrategy which immediately replaces render cache placeholders when the placeholder replacement itself is found in the cache.

Impacts: 
Module developers