Auto-update Drupal core and modules always have been a high demand in Drupal. hopefully, in the Amsterdam 2019 DrupalCon , Automatic Updates modules has been introduced.  a great module but in begging on its way. but Automatic updates is a great feature in drupal.

it has been introduced as a contrib module, but it will finally go to the core of Drupal.

as you can see in its page in will developed in two phases.