diff --git a/src/isomorphic/classic/__tests__/ReactContextValidator-test.js b/src/isomorphic/classic/__tests__/ReactContextValidator-test.js
index e2e5aee48b..027c536826 100644
--- a/src/isomorphic/classic/__tests__/ReactContextValidator-test.js
+++ b/src/isomorphic/classic/__tests__/ReactContextValidator-test.js
@@ -121,9 +121,9 @@ describe('ReactContextValidator', function() {
       },
     });
 
-    var instance = <Parent foo="abc" />;
-    instance = ReactTestUtils.renderIntoDocument(instance);
-    instance.replaceProps({foo: 'def'});
+    var container = document.createElement('div');
+    React.render(<Parent foo="abc" />, container);
+    React.render(<Parent foo="def" />, container);
     expect(actualComponentWillReceiveProps).toEqual({foo: 'def'});
     expect(actualShouldComponentUpdate).toEqual({foo: 'def'});
     expect(actualComponentWillUpdate).toEqual({foo: 'def'});
diff --git a/src/renderers/shared/reconciler/__tests__/ReactComponentLifeCycle-test.js b/src/renderers/shared/reconciler/__tests__/ReactComponentLifeCycle-test.js
index 0a5a6b2993..e4dd2c400e 100644
--- a/src/renderers/shared/reconciler/__tests__/ReactComponentLifeCycle-test.js
+++ b/src/renderers/shared/reconciler/__tests__/ReactComponentLifeCycle-test.js
@@ -512,24 +512,18 @@ describe('ReactComponentLifeCycle', function() {
       },
     });
 
-    var instance = ReactTestUtils.renderIntoDocument(
-      <Component text="uno" tooltipText="one" />
+    var container = document.createElement('div');
+    React.render(
+      <Component text="uno" tooltipText="one" />,
+      container
     );
 
     // Since `instance` is a root component, we can set its props. This also
     // makes Tooltip rerender the tooltip component, which shouldn't throw.
-    instance.setProps({text: 'dos', tooltipText: 'two'});
-  });
-
-  it('should not allow setProps() called on an unmounted element',
-     function() {
-    var PropsToUpdate = React.createClass({
-      render: function() {
-        return <div className={this.props.value} ref="theSimpleComponent" />;
-      },
-    });
-    var instance = <PropsToUpdate value="hello" />;
-    expect(instance.setProps).not.toBeDefined();
+    React.render(
+      <Component text="dos" tooltipText="two" />,
+      container
+    );
   });
 
   it('should allow state updates in componentDidMount', function() {
@@ -595,7 +589,7 @@ describe('ReactComponentLifeCycle', function() {
 
     var container = document.createElement('div');
     log = [];
-    var instance = React.render(<Outer x={17} />, container);
+    React.render(<Outer x={17} />, container);
     expect(log).toEqual([
       'outer componentWillMount',
       'inner componentWillMount',
@@ -604,7 +598,7 @@ describe('ReactComponentLifeCycle', function() {
     ]);
 
     log = [];
-    instance.setProps({x: 42});
+    React.render(<Outer x={42} />, container);
     expect(log).toEqual([
       'outer componentWillReceiveProps',
       'outer shouldComponentUpdate',
diff --git a/src/renderers/shared/reconciler/__tests__/ReactCompositeComponent-test.js b/src/renderers/shared/reconciler/__tests__/ReactCompositeComponent-test.js
index e30858b648..d58f84c118 100644
--- a/src/renderers/shared/reconciler/__tests__/ReactCompositeComponent-test.js
+++ b/src/renderers/shared/reconciler/__tests__/ReactCompositeComponent-test.js
@@ -935,7 +935,8 @@ describe('ReactCompositeComponent', function() {
       },
     });
 
-    var comp = ReactTestUtils.renderIntoDocument(<Component flipped={false} />);
+    var container = document.createElement('div');
+    var comp = React.render(<Component flipped={false} />, container);
     expect(React.findDOMNode(comp.refs.static0).textContent).toBe('A');
     expect(React.findDOMNode(comp.refs.static1).textContent).toBe('B');
 
@@ -946,7 +947,7 @@ describe('ReactCompositeComponent', function() {
 
     // When flipping the order, the refs should update even though the actual
     // contents do not
-    comp.setProps({flipped: true});
+    React.render(<Component flipped={true} />, container);
     expect(React.findDOMNode(comp.refs.static0).textContent).toBe('B');
     expect(React.findDOMNode(comp.refs.static1).textContent).toBe('A');
 
diff --git a/src/renderers/shared/reconciler/__tests__/ReactCompositeComponentState-test.js b/src/renderers/shared/reconciler/__tests__/ReactCompositeComponentState-test.js
index 1547f47f33..fda4de2cec 100644
--- a/src/renderers/shared/reconciler/__tests__/ReactCompositeComponentState-test.js
+++ b/src/renderers/shared/reconciler/__tests__/ReactCompositeComponentState-test.js
@@ -138,8 +138,9 @@ describe('ReactCompositeComponent-state', function() {
         this.peekAtState('initial-callback');
       }
     );
-    instance.setProps(
-      {nextColor: 'green'},
+    React.render(
+      <TestComponent stateListener={stateListener} nextColor="green" />,
+      container,
       instance.peekAtCallback('setProps')
     );
     instance.setFavoriteColor('blue');
diff --git a/src/renderers/shared/reconciler/__tests__/ReactMultiChildReconcile-test.js b/src/renderers/shared/reconciler/__tests__/ReactMultiChildReconcile-test.js
index 4e54164c13..61faf39897 100644
--- a/src/renderers/shared/reconciler/__tests__/ReactMultiChildReconcile-test.js
+++ b/src/renderers/shared/reconciler/__tests__/ReactMultiChildReconcile-test.js
@@ -15,7 +15,6 @@ require('mock-modules');
 
 var React = require('React');
 var ReactInstanceMap = require('ReactInstanceMap');
-var ReactTestUtils = require('ReactTestUtils');
 var ReactMount = require('ReactMount');
 
 var mapObject = require('mapObject');
@@ -212,15 +211,20 @@ function verifyDomOrderingAccurate(parentInstance, statusDisplays) {
  */
 function testPropsSequence(sequence) {
   var i;
-  var parentInstance = ReactTestUtils.renderIntoDocument(
-    <FriendsStatusDisplay {...sequence[0]} />
+  var container = document.createElement('div');
+  var parentInstance = React.render(
+    <FriendsStatusDisplay {...sequence[0]} />,
+    container
   );
   var statusDisplays = parentInstance.getStatusDisplays();
   var lastInternalStates = getInteralStateByUserName(statusDisplays);
   verifyStatuses(statusDisplays, sequence[0]);
 
   for (i = 1; i < sequence.length; i++) {
-    parentInstance.replaceProps(sequence[i]);
+    React.render(
+      <FriendsStatusDisplay {...sequence[i]} />,
+      container
+    );
     statusDisplays = parentInstance.getStatusDisplays();
     verifyStatuses(statusDisplays, sequence[i]);
     verifyStatesPreserved(lastInternalStates, statusDisplays);
@@ -243,19 +247,27 @@ describe('ReactMultiChildReconcile', function() {
       },
     };
 
-    var parentInstance = ReactTestUtils.renderIntoDocument(
-      <FriendsStatusDisplay {...props} />
+    var container = document.createElement('div');
+    var parentInstance = React.render(
+      <FriendsStatusDisplay {...props} />,
+      container
     );
     var statusDisplays = parentInstance.getStatusDisplays();
     var startingInternalState = statusDisplays.jcw.getInternalState();
 
     // Now remove the child.
-    parentInstance.replaceProps({usernameToStatus: {} });
+    React.render(
+      <FriendsStatusDisplay />,
+      container
+    );
     statusDisplays = parentInstance.getStatusDisplays();
     expect(statusDisplays.jcw).toBeFalsy();
 
     // Now reset the props that cause there to be a child
-    parentInstance.replaceProps(props);
+    React.render(
+      <FriendsStatusDisplay {...props} />,
+      container
+    );
     statusDisplays = parentInstance.getStatusDisplays();
     expect(statusDisplays.jcw).toBeTruthy();
     expect(statusDisplays.jcw.getInternalState())