gulp 配置 autoprefixer 報出警告問題

今天在配置gulp  autoprefixer  控制檯 出現了警告問題，

Replace Autoprefixer browsers option to Browserslist config.
  Use browserslist key in package.json or .browserslistrc file.

  Using browsers option cause some error. Browserslist config 
  can be used for Babel, Autoprefixer, postcss-normalize and other tools.

  If you really need to use option, rename it to overrideBrowserslist.

  Learn more at:
  https://github.com/browserslist/browserslist#readme
  https://twitter.com/browserslist

原來代碼

{
                    loader: 'postcss-loader',
                    options: {
                        ident:'postcss',
                        sourceMap:true,
                        plugins:(loader)=> [
                            require("autoprefixer")({
                                browsers: [ // 設置瀏覽器版本
                                  'last 10 Chrome versions',
                                  'last 5 Firefox versions',
                                  'Safari >= 6', 
                                  'ie> 8'
                                ] 
                             })/*在這裏添加*/
                        ]
                    }

修改後

{
                    loader: 'postcss-loader',
                    options: {
                        ident:'postcss',
                        sourceMap:true,
                        plugins:(loader)=> [
                            require("autoprefixer")({
                                overrideBrowserslist: [ // 設置瀏覽器版本
                                  'last 10 Chrome versions',
                                  'last 5 Firefox versions',
                                  'Safari >= 6', 
                                  'ie> 8'
                                ] 
                             })/*在這裏添加*/
                        ]
                    }
                  }