old_contents: module.exports = {
    description: '',
    normalizeEntityName: function () {},
  
    /**
      Installs specified packages at the root level of the application.
      Triggered by 'ember install <addon name>'.
  
      @returns {Promise} package names and versions
    */
    afterInstall: function () {
      return this.addAddonsToProject({
        packages: [
          {
            name: 'ember-frost-core',
            target: '>=0.24.0 <1.0.0'
          }
        ]
      })
    }
  }
  
new_contents: module.exports = {
    description: '',
    normalizeEntityName: function () {},
  
    /**
      Installs specified packages at the root level of the application.
      Triggered by 'ember install <addon name>'.
  
      @returns {Promise} package names and versions
    */
    afterInstall: function () {
      return this.addAddonsToProject({
        packages: [
          {
            name: 'ember-frost-core',
            target: '>=0.24.0 <=1.0.0'
          }
        ]
      })
    }
  }
  
subject: Change blueprint from < 1 to <= 1 for core