webpack 2 is now stable (#8859)

Remove notice about different webpack versions
Update webpack URLs

_posts/2016-11-16-react-v15.4.0.md

@@ -110,7 +110,7 @@ To install React with npm, run:
 npm install --save react@15.4.0 react-dom@15.4.0
 ```
 
-We recommend using a bundler like [webpack](https://webpack.github.io/) or [Browserify](http://browserify.org/) so you can write modular code and bundle it together into small packages to optimize load time.
+We recommend using a bundler like [webpack](https://webpack.js.org/) or [Browserify](http://browserify.org/) so you can write modular code and bundle it together into small packages to optimize load time.
 
 Remember that by default, React runs extra checks and provides helpful warnings in development mode. When deploying your app, make sure to [compile it in production mode](/react/docs/installation.html#development-and-production-versions).
 

docs/installation.md

@@ -31,7 +31,7 @@ cd hello-world
 npm start
 ```
 
-Create React App doesn't handle backend logic or databases; it just creates a frontend build pipeline, so you can use it with any backend you want. It uses [webpack](https://webpack.github.io/), [Babel](http://babeljs.io/) and [ESLint](http://eslint.org/) under the hood, but configures them for you.
+Create React App doesn't handle backend logic or databases; it just creates a frontend build pipeline, so you can use it with any backend you want. It uses [webpack](https://webpack.js.org/), [Babel](http://babeljs.io/) and [ESLint](http://eslint.org/) under the hood, but configures them for you.
 
 ## Adding React to an Existing Application
 
@@ -42,7 +42,7 @@ We recommend adding React to a small part of your application, such an individua
 While React [can be used](/react/docs/react-without-es6.html) without a build pipeline, we recommend setting it up so you can be more productive. A modern build pipeline typically consists of:
 
 * A **package manager**, such as [Yarn](https://yarnpkg.com/) or [npm](https://www.npmjs.com/). It lets you take advantage of a vast ecosystem of third-party packages, and easily install or update them.
-* A **bundler**, such as [webpack](https://webpack.github.io/) or [Browserify](http://browserify.org/). It lets you write modular code and bundle it together into small packages to optimize load time.
+* A **bundler**, such as [webpack](https://webpack.js.org/) or [Browserify](http://browserify.org/). It lets you write modular code and bundle it together into small packages to optimize load time.
 * A **compiler** such as [Babel](http://babeljs.io/). It lets you write modern JavaScript code that still works in older browsers.
 
 ### Installing React
@@ -73,7 +73,7 @@ The [Babel setup instructions](https://babeljs.io/docs/setup/) explain how to co
 
 ### Hello World with ES6 and JSX
 
-We recommend using a bundler like [webpack](https://webpack.github.io/) or [Browserify](http://browserify.org/) so you can write modular code and bundle it together into small packages to optimize load time.
+We recommend using a bundler like [webpack](https://webpack.js.org/) or [Browserify](http://browserify.org/) so you can write modular code and bundle it together into small packages to optimize load time.
 
 The smallest React example looks like this:
 
@@ -103,10 +103,6 @@ If you use [Create React App](https://github.com/facebookincubator/create-react-
 
 Include both `DefinePlugin` and `UglifyJsPlugin` into your production Webpack configuration as described in [this guide](https://webpack.js.org/guides/production-build/).
 
-> **Note:**
->
->This guide works with Webpack 1.x and 2, but is hosted on the new Webpack 2 site. If you're not using the Webpack 2 beta, refer to the [Webpack 1.x website](https://webpack.github.io/) for all other documentation.
-
 #### Browserify
 
 Run Browserify with `NODE_ENV` environment variable set to `production` and use [UglifyJS](https://github.com/mishoo/UglifyJS) as the last build step so that development-only code gets stripped out.