Updated to Drupal 8.5. Core Media not yet in use.

[yaffs-website] / web / themes / contrib / bootstrap / bower.json

{
  "name": "drupal-bootstrap",
  "version": "8.3.x-dev",
  "license": "GPL+2",
  "homepage": "https://www.drupal.org/project/bootstrap",
  "private": true
}