Let's see how to update your Drupal site between 8.x.x minor and patch versions. For example, from 8.1.2 to 8.1.3, or from 8.3.5 to 8.4.0. I hope this will help you.
The approach to custom block caching is different in Drupal 8 from Drupal 7. In Drupal 8, all renderable arrays are cacheable, even those returned by custom block.
Let's see how to update your Drupal site between 8.x.x minor and patch versions. For example, from 8.1.2 to 8.1.3, or from 8.3.5 to 8.4.0. I hope this will help you.
The approach to custom block caching is different in Drupal 8 from Drupal 7. In Drupal 8, all renderable arrays are cacheable, even those returned by custom block.