old_contents: /* eslint-env node */
  
  module.exports = {
    browsers: [
      'ie 9',
      'last 1 Chrome versions',
      'last 1 Firefox versions',
      'last 1 Safari versions'
    ]
  };
  
new_contents: /* eslint-env node */
  
  module.exports = {
    browsers: [
      // We don't actually intend to support Safari 4, but PhantomJS uses an
      // old version of webkit. There's no browserslist string for PhantomJS,
      // but this simulates it so that autoprefixer works for running tests.
      'Safari 4',
  
      // These are the browsers we actually are attempting to support:
      'last 2 Chrome versions',
      'last 1 Firefox version',
      'Firefox ESR',
      'last 1 Safari version',
      'last 1 iOS version',
      'last 1 Edge version',
      'last 1 UCAndroid version'
    ]
  };
  
subject: Make targets match RFC 1985