diff --git a/grunt/tasks/npm-react-addons.js b/grunt/tasks/npm-react-addons.js
index 67bbf783b8a52..238fefc60bdac 100644
--- a/grunt/tasks/npm-react-addons.js
+++ b/grunt/tasks/npm-react-addons.js
@@ -36,11 +36,6 @@ var addons = {
     name: 'transition-group',
     docs: 'animation',
   },
-  cloneWithProps: {
-    module: 'cloneWithProps',
-    name: 'clone-with-props',
-    docs: 'clone-with-props',
-  },
   createFragment: {
     module: 'ReactFragment',
     method: 'create',
diff --git a/src/addons/ReactWithAddons.js b/src/addons/ReactWithAddons.js
index b9a8004dd8c30..d3cf053a25fee 100644
--- a/src/addons/ReactWithAddons.js
+++ b/src/addons/ReactWithAddons.js
@@ -27,7 +27,6 @@ var ReactFragment = require('ReactFragment');
 var ReactTransitionGroup = require('ReactTransitionGroup');
 var ReactUpdates = require('ReactUpdates');
 
-var cloneWithProps = require('cloneWithProps');
 var shallowCompare = require('shallowCompare');
 var update = require('update');
 var warning = require('warning');
@@ -51,7 +50,6 @@ React.addons = {
     }
     return ReactUpdates.batchedUpdates.apply(this, arguments);
   },
-  cloneWithProps: cloneWithProps,
   createFragment: ReactFragment.create,
   shallowCompare: shallowCompare,
   update: update,
diff --git a/src/isomorphic/deprecated/__tests__/cloneWithProps-test.js b/src/isomorphic/deprecated/__tests__/cloneWithProps-test.js
deleted file mode 100644
index 1b9602689587e..0000000000000
--- a/src/isomorphic/deprecated/__tests__/cloneWithProps-test.js
+++ /dev/null
@@ -1,196 +0,0 @@
-/**
- * Copyright 2013-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @emails react-core
- */
-
-'use strict';
-
-var React;
-var ReactDOM;
-var ReactTestUtils;
-
-var onlyChild;
-var cloneWithProps;
-var emptyObject;
-
-describe('cloneWithProps', function() {
-
-  beforeEach(function() {
-    jest.resetModuleRegistry();
-    React = require('React');
-    ReactDOM = require('ReactDOM');
-    ReactTestUtils = require('ReactTestUtils');
-    onlyChild = require('onlyChild');
-    cloneWithProps = require('cloneWithProps');
-    emptyObject = require('emptyObject');
-    spyOn(console, 'error');
-  });
-
-  it('should warn once because it is deprecated', function() {
-    var Parent = React.createClass({
-      render: function() {
-        return (
-          <div>
-            {cloneWithProps(onlyChild(this.props.children), {})}
-          </div>
-        );
-      },
-    });
-    ReactTestUtils.renderIntoDocument(<Parent><div /></Parent>);
-    ReactTestUtils.renderIntoDocument(<Parent><div /></Parent>);
-    expect(console.error.argsForCall.length).toBe(1);
-    expect(console.error.argsForCall[0][0]).toContain(
-      'cloneWithProps(...) is deprecated. ' +
-      'Please use React.cloneElement instead.'
-    );
-  });
-
-  it('should clone a DOM component with new props', function() {
-    var Grandparent = React.createClass({
-      render: function() {
-        return <Parent><div className="child" /></Parent>;
-      },
-    });
-    var Parent = React.createClass({
-      render: function() {
-        return (
-          <div className="parent">
-            {cloneWithProps(onlyChild(this.props.children), {className: 'xyz'})}
-          </div>
-        );
-      },
-    });
-    var component = ReactTestUtils.renderIntoDocument(<Grandparent />);
-    expect(ReactDOM.findDOMNode(component).childNodes[0].className)
-      .toBe('xyz child');
-  });
-
-  it('should clone a composite component with new props', function() {
-
-    var Child = React.createClass({
-      render: function() {
-        return <div className={this.props.className} />;
-      },
-    });
-
-    var Grandparent = React.createClass({
-      render: function() {
-        return <Parent><Child className="child" /></Parent>;
-      },
-    });
-    var Parent = React.createClass({
-      render: function() {
-        return (
-          <div className="parent">
-            {cloneWithProps(onlyChild(this.props.children), {className: 'xyz'})}
-          </div>
-        );
-      },
-    });
-    var component = ReactTestUtils.renderIntoDocument(<Grandparent />);
-    expect(ReactDOM.findDOMNode(component).childNodes[0].className)
-      .toBe('xyz child');
-  });
-
-  it('should warn when cloning with refs', function() {
-    var Grandparent = React.createClass({
-      render: function() {
-        return <Parent><div ref="yolo" /></Parent>;
-      },
-    });
-    var Parent = React.createClass({
-      render: function() {
-        return (
-          <div>
-            {cloneWithProps(onlyChild(this.props.children), {className: 'xyz'})}
-          </div>
-        );
-      },
-    });
-
-    var component = ReactTestUtils.renderIntoDocument(<Grandparent />);
-    expect(component.refs).toBe(emptyObject);
-    expect(console.error.argsForCall.length).toBe(2);
-  });
-
-  it('should transfer the key property', function() {
-    var Component = React.createClass({
-      render: function() {
-        return null;
-      },
-    });
-    var clone = cloneWithProps(<Component />, {key: 'xyz'});
-    expect(clone.key).toBe('xyz');
-  });
-
-  it('should transfer children', function() {
-    var Component = React.createClass({
-      render: function() {
-        expect(this.props.children).toBe('xyz');
-        return <div />;
-      },
-    });
-
-    ReactTestUtils.renderIntoDocument(
-      cloneWithProps(<Component />, {children: 'xyz'})
-    );
-  });
-
-  it('should shallow clone children', function() {
-    var Component = React.createClass({
-      render: function() {
-        expect(this.props.children).toBe('xyz');
-        return <div />;
-      },
-    });
-
-    ReactTestUtils.renderIntoDocument(
-      cloneWithProps(<Component>xyz</Component>, {})
-    );
-  });
-
-  it('should support keys and refs', function() {
-    var Component = React.createClass({
-      render: function() {
-        return <div />;
-      },
-    });
-
-    var Parent = React.createClass({
-      render: function() {
-        var clone =
-          cloneWithProps(this.props.children, {key: 'xyz', ref: 'xyz'});
-        expect(clone.key).toBe('xyz');
-        expect(clone.ref).toBe('xyz');
-        return <div>{clone}</div>;
-      },
-    });
-
-    var Grandparent = React.createClass({
-      render: function() {
-        return <Parent><Component key="abc" /></Parent>;
-      },
-    });
-
-    ReactTestUtils.renderIntoDocument(<Grandparent />);
-  });
-
-  it('should overwrite props', function() {
-    var Component = React.createClass({
-      render: function() {
-        expect(this.props.myprop).toBe('xyz');
-        return <div />;
-      },
-    });
-
-    ReactTestUtils.renderIntoDocument(
-      cloneWithProps(<Component myprop="abc" />, {myprop: 'xyz'})
-    );
-  });
-});
diff --git a/src/isomorphic/deprecated/cloneWithProps.js b/src/isomorphic/deprecated/cloneWithProps.js
deleted file mode 100644
index 5504d829272de..0000000000000
--- a/src/isomorphic/deprecated/cloneWithProps.js
+++ /dev/null
@@ -1,63 +0,0 @@
-/**
- * Copyright 2013-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @providesModule cloneWithProps
- */
-
-'use strict';
-
-var ReactElement = require('ReactElement');
-var ReactPropTransferer = require('ReactPropTransferer');
-
-var keyOf = require('keyOf');
-var warning = require('warning');
-
-var CHILDREN_PROP = keyOf({children: null});
-
-var didDeprecatedWarn = false;
-
-/**
- * Sometimes you want to change the props of a child passed to you. Usually
- * this is to add a CSS class.
- *
- * @param {ReactElement} child child element you'd like to clone
- * @param {object} props props you'd like to modify. className and style will be
- * merged automatically.
- * @return {ReactElement} a clone of child with props merged in.
- * @deprecated
- */
-function cloneWithProps(child, props) {
-  if (__DEV__) {
-    warning(
-      didDeprecatedWarn,
-      'cloneWithProps(...) is deprecated. ' +
-      'Please use React.cloneElement instead.'
-    );
-    didDeprecatedWarn = true;
-    warning(
-      !child.ref,
-      'You are calling cloneWithProps() on a child with a ref. This is ' +
-      'dangerous because you\'re creating a new child which will not be ' +
-      'added as a ref to its parent.'
-    );
-  }
-
-  var newProps = ReactPropTransferer.mergeProps(props, child.props);
-
-  // Use `child.props.children` if it is provided.
-  if (!newProps.hasOwnProperty(CHILDREN_PROP) &&
-      child.props.hasOwnProperty(CHILDREN_PROP)) {
-    newProps.children = child.props.children;
-  }
-
-  // The current API doesn't retain _owner, which is why this
-  // doesn't use ReactElement.cloneAndReplaceProps.
-  return ReactElement.createElement(child.type, newProps);
-}
-
-module.exports = cloneWithProps;