Drupal 7 will reach end-of-life in November of 2021

Drupal 7 was first released in January 2011. In November 2021, after over a decade, Drupal 7 will reach end of life (EOL). (More information on why this date was chosen.) Official community support for version 7 will end, along with support provided by the Drupal Association on Drupal.org. This means that automated testing services for Drupal 7 will be shut down, and there will be no more updates provided by the Drupal Security Team.
lees de rest op: https://www.drupal.org/psa-2019-02-25

Gelijk met Drupal 7 is het ook end of life voor D8
https://www.drupal.org/blog/drupal-7-8-and-9