diff --git a/types/create-react-class/index.d.ts b/types/create-react-class/index.d.ts
index 9a1b0b12b5..9b9d2b2ad5 100644
--- a/types/create-react-class/index.d.ts
+++ b/types/create-react-class/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://facebook.github.io/react/
 // Definitions by: John Gozde <https://github.com/jgoz>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import { ComponentSpec, ClassicComponentClass } from "react";
 
diff --git a/types/gestalt/index.d.ts b/types/gestalt/index.d.ts
index d3ceb5672e..162d61dd52 100644
--- a/types/gestalt/index.d.ts
+++ b/types/gestalt/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/pinterest/gestalt
 // Definitions by: Nicolás Serrano Arévalo <https://github.com/serranoarevalo>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from "react";
 
diff --git a/types/hoist-non-react-statics/hoist-non-react-statics-tests.tsx b/types/hoist-non-react-statics/hoist-non-react-statics-tests.tsx
index 9767614bcc..0e1beed2e9 100644
--- a/types/hoist-non-react-statics/hoist-non-react-statics-tests.tsx
+++ b/types/hoist-non-react-statics/hoist-non-react-statics-tests.tsx
@@ -1,13 +1,14 @@
-import * as  React from 'react';
+import * as React from 'react';
 import * as PropTypes from 'prop-types';
 
 import hoistNonReactStatics = require('hoist-non-react-statics');
 
-class A extends React.Component<{x: number, y?: number}> {
+class A extends React.Component<{ x: number; y?: number | null }> {
     static a = 'a';
 
     static propTypes = {
-        m: PropTypes.number.isRequired
+        x: PropTypes.number.isRequired,
+        y: PropTypes.number,
     };
 
     getA() {
@@ -19,7 +20,7 @@ class B extends React.Component {
     static b = 'b';
 
     static propTypes = {
-        n: PropTypes.number.isRequired
+        n: PropTypes.number.isRequired,
     };
 
     getB() {
@@ -31,13 +32,13 @@ const C = hoistNonReactStatics(A, B);
 
 C.a !== C.b;
 
-C.propTypes.m;
+C.propTypes.x;
 C.prototype.getA();
 
 C.propTypes.n; // $ExpectError
 C.prototype.getB(); // $ExpectError
 
-<C x={1}/>;
+<C x={1} />;
 
 const D = hoistNonReactStatics(A, B, { a: true, b: true });
 
diff --git a/types/react-adal/index.d.ts b/types/react-adal/index.d.ts
index 9f3cd9bef2..40a8d5d3bc 100644
--- a/types/react-adal/index.d.ts
+++ b/types/react-adal/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/salvoravida/react-adal#readme
 // Definitions by: Dmitry Korolev <https://github.com/dkorolev1>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from 'react';
 
diff --git a/types/react-addons-create-fragment/index.d.ts b/types/react-addons-create-fragment/index.d.ts
index 1e46046ec4..25e4ba9b43 100644
--- a/types/react-addons-create-fragment/index.d.ts
+++ b/types/react-addons-create-fragment/index.d.ts
@@ -2,7 +2,7 @@
 // Project: http://facebook.github.io/react/
 // Definitions by: Asana <https://asana.com>, AssureSign <http://www.assuresign.com>, Microsoft <https://microsoft.com>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from 'react';
 
diff --git a/types/react-addons-css-transition-group/index.d.ts b/types/react-addons-css-transition-group/index.d.ts
index 33d43b4cd1..03cdc48303 100644
--- a/types/react-addons-css-transition-group/index.d.ts
+++ b/types/react-addons-css-transition-group/index.d.ts
@@ -2,7 +2,7 @@
 // Project: http://facebook.github.io/react/
 // Definitions by: Asana <https://asana.com>, AssureSign <http://www.assuresign.com>, Microsoft <https://microsoft.com>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import 'react-addons-transition-group';
 import { ComponentClass, CSSTransitionGroupProps } from 'react';
diff --git a/types/react-addons-linked-state-mixin/index.d.ts b/types/react-addons-linked-state-mixin/index.d.ts
index 6358dde535..1c590e333f 100644
--- a/types/react-addons-linked-state-mixin/index.d.ts
+++ b/types/react-addons-linked-state-mixin/index.d.ts
@@ -2,7 +2,7 @@
 // Project: http://facebook.github.io/react/
 // Definitions by: Asana <https://asana.com>, AssureSign <http://www.assuresign.com>, Microsoft <https://microsoft.com>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import { Mixin } from 'react';
 
diff --git a/types/react-addons-pure-render-mixin/index.d.ts b/types/react-addons-pure-render-mixin/index.d.ts
index 565a108721..a154dbe594 100644
--- a/types/react-addons-pure-render-mixin/index.d.ts
+++ b/types/react-addons-pure-render-mixin/index.d.ts
@@ -2,7 +2,7 @@
 // Project: http://facebook.github.io/react/
 // Definitions by: Asana <https://asana.com>, AssureSign <http://www.assuresign.com>, Microsoft <https://microsoft.com>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import { Mixin } from 'react';
 
diff --git a/types/react-addons-shallow-compare/index.d.ts b/types/react-addons-shallow-compare/index.d.ts
index ff4e5dbdc9..5d6942ed24 100644
--- a/types/react-addons-shallow-compare/index.d.ts
+++ b/types/react-addons-shallow-compare/index.d.ts
@@ -2,7 +2,7 @@
 // Project: http://facebook.github.io/react/
 // Definitions by: Asana <https://asana.com>, AssureSign <http://www.assuresign.com>, Microsoft <https://microsoft.com>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import { Component } from 'react';
 
diff --git a/types/react-addons-test-utils/index.d.ts b/types/react-addons-test-utils/index.d.ts
index 9282f95f4e..0531c5e3f6 100644
--- a/types/react-addons-test-utils/index.d.ts
+++ b/types/react-addons-test-utils/index.d.ts
@@ -2,7 +2,7 @@
 // Project: http://facebook.github.io/react/
 // Definitions by: Asana <https://asana.com>, AssureSign <http://www.assuresign.com>, Microsoft <https://microsoft.com>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import { AbstractView, Component, ComponentClass,
     ReactElement, ReactInstance, ClassType,
diff --git a/types/react-addons-transition-group/index.d.ts b/types/react-addons-transition-group/index.d.ts
index 933533df28..79f76bf84e 100644
--- a/types/react-addons-transition-group/index.d.ts
+++ b/types/react-addons-transition-group/index.d.ts
@@ -2,7 +2,7 @@
 // Project: http://facebook.github.io/react/
 // Definitions by: Asana <https://asana.com>, AssureSign <http://www.assuresign.com>, Microsoft <https://microsoft.com>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import { ComponentClass, TransitionGroupProps } from 'react';
 
diff --git a/types/react-addons-update/index.d.ts b/types/react-addons-update/index.d.ts
index 874549b7a1..5a1018d2c2 100644
--- a/types/react-addons-update/index.d.ts
+++ b/types/react-addons-update/index.d.ts
@@ -2,7 +2,7 @@
 // Project: http://facebook.github.io/react/
 // Definitions by: Asana <https://asana.com>, AssureSign <http://www.assuresign.com>, Microsoft <https://microsoft.com>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from 'react';
 
diff --git a/types/react-aria-modal/index.d.ts b/types/react-aria-modal/index.d.ts
index 83ca6d3a34..4083d08473 100644
--- a/types/react-aria-modal/index.d.ts
+++ b/types/react-aria-modal/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/davidtheclark/react-aria-modal#readme
 // Definitions by: forabi <https://github.com/forabi>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import React = require('react');
 
diff --git a/types/react-dom-factories/index.d.ts b/types/react-dom-factories/index.d.ts
index eaf04f766f..b0bcb5bfa6 100644
--- a/types/react-dom-factories/index.d.ts
+++ b/types/react-dom-factories/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://facebook.github.io/react/
 // Definitions by: John Gozde <https://github.com/jgoz>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 export as namespace ReactDOMFactories;
 export = ReactDOMFactories;
diff --git a/types/react-dom/index.d.ts b/types/react-dom/index.d.ts
index e7a5afe59d..518c0c617c 100644
--- a/types/react-dom/index.d.ts
+++ b/types/react-dom/index.d.ts
@@ -6,7 +6,7 @@
 //                 MartynasZilinskas <https://github.com/MartynasZilinskas>
 //                 Josh Rutherford <https://github.com/theruther4d>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 export as namespace ReactDOM;
 
diff --git a/types/react-dom/v15/index.d.ts b/types/react-dom/v15/index.d.ts
index bd39e0a5e1..8a22fd9bc2 100644
--- a/types/react-dom/v15/index.d.ts
+++ b/types/react-dom/v15/index.d.ts
@@ -5,7 +5,7 @@
 //                 Microsoft <https://microsoft.com>
 //                 MartynasZilinskas <https://github.com/MartynasZilinskas>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 export as namespace ReactDOM;
 
diff --git a/types/react-dragtastic/index.d.ts b/types/react-dragtastic/index.d.ts
index 64ce099e2f..fbfaf42cff 100644
--- a/types/react-dragtastic/index.d.ts
+++ b/types/react-dragtastic/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/chrisjpatty/react-dragtastic#readme
 // Definitions by: Nicolás Scarcella <https://github.com/nscarcella>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import { ReactNode, Component, MouseEventHandler, TouchEventHandler } from 'react';
 
diff --git a/types/react-flag-icon-css/index.d.ts b/types/react-flag-icon-css/index.d.ts
index ad1777670a..74c3e04efe 100644
--- a/types/react-flag-icon-css/index.d.ts
+++ b/types/react-flag-icon-css/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/matteocng/react-flag-icon-css#readme
 // Definitions by: Jon Freedman <https://github.com/jonfreedman>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as CSS from 'csstype';
 import { PureComponent, ReactNode } from 'react';
diff --git a/types/react-highlight/index.d.ts b/types/react-highlight/index.d.ts
index 2ab09ee3a9..715a25b23b 100644
--- a/types/react-highlight/index.d.ts
+++ b/types/react-highlight/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/akiran/react-highlight
 // Definitions by: Josh Goldberg <https://github.com/joshuakgoldberg>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from "react";
 
diff --git a/types/react-input-autosize/index.d.ts b/types/react-input-autosize/index.d.ts
index f8f6f5b06f..0a86381736 100644
--- a/types/react-input-autosize/index.d.ts
+++ b/types/react-input-autosize/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/JedWatson/react-input-autosize#readme
 // Definitions by: Jason Unger <https://github.com/jsonunger>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.7
+// TypeScript Version: 2.8
 
 import * as React from 'react';
 
diff --git a/types/react-intl/react-intl-tests.tsx b/types/react-intl/react-intl-tests.tsx
index 2ed6eb0d98..782c4de889 100644
--- a/types/react-intl/react-intl-tests.tsx
+++ b/types/react-intl/react-intl-tests.tsx
@@ -4,6 +4,7 @@
  */
 
 import * as React from "react";
+import * as PropTypes from "prop-types";
 import * as reactMixin from "react-mixin";
 
 import {
@@ -63,8 +64,9 @@ const SomeFunctionalComponentWithIntl: React.ComponentClass<SomeComponentProps>
 });
 
 class SomeComponent extends React.Component<SomeComponentProps & InjectedIntlProps> {
-    static propTypes: React.ValidationMap<any> = {
-        intl: intlShape.isRequired
+    static propTypes: React.ValidationMap<SomeComponentProps & InjectedIntlProps> = {
+        intl: intlShape.isRequired,
+        className: PropTypes.string.isRequired
     };
     render(): React.ReactElement<{}> {
         const intl = this.props.intl;
diff --git a/types/react-no-ssr/index.d.ts b/types/react-no-ssr/index.d.ts
index 77d52af1ff..9ca00149d0 100644
--- a/types/react-no-ssr/index.d.ts
+++ b/types/react-no-ssr/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/kadirahq/react-no-ssr
 // Definitions by: Rafał Filipek <https://github.com/rafalfilipek>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from 'react';
 
diff --git a/types/react-plotly.js/index.d.ts b/types/react-plotly.js/index.d.ts
index ac24016496..4dfc3b0ce3 100644
--- a/types/react-plotly.js/index.d.ts
+++ b/types/react-plotly.js/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/plotly/react-plotly.js#readme
 // Definitions by: Jon Freedman <https://github.com/jonfreedman>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as Plotly from 'plotly.js';
 import * as React from 'react';
diff --git a/types/react-portal/v3/index.d.ts b/types/react-portal/v3/index.d.ts
index 7595c5e8ad..4d869009e6 100644
--- a/types/react-portal/v3/index.d.ts
+++ b/types/react-portal/v3/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/tajo/react-portal#readme
 // Definitions by: Shun Takahashi <https://github.com/shuntksh>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from "react";
 
diff --git a/types/react-qr-reader/index.d.ts b/types/react-qr-reader/index.d.ts
index d58da0e89f..de426667c0 100644
--- a/types/react-qr-reader/index.d.ts
+++ b/types/react-qr-reader/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/JodusNodus/react-qr-reader
 // Definitions by: David Kevork <https://github.com/davidkevork>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from "react";
 
diff --git a/types/react-select/test/examples/Experimental.tsx b/types/react-select/test/examples/Experimental.tsx
index c0bbf3c6ad..1317abbf5a 100644
--- a/types/react-select/test/examples/Experimental.tsx
+++ b/types/react-select/test/examples/Experimental.tsx
@@ -89,7 +89,7 @@ const daysHeaderItemStyles = {
   cursor: 'default',
   // display: 'block',
   fontSize: '75%',
-  fontWeight: 500,
+  fontWeight: 500 as 500,
   display: 'inline-block',
   width: '12%',
   margin: '0 1%',
diff --git a/types/react-select/v1/index.d.ts b/types/react-select/v1/index.d.ts
index 31ff0db561..59bea6d815 100644
--- a/types/react-select/v1/index.d.ts
+++ b/types/react-select/v1/index.d.ts
@@ -16,7 +16,7 @@
 //                 Endurance Idehen <https://github.com/endurance>
 //                 Guillaume Chartier <https://github.com/RCGuillaume>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from 'react';
 
diff --git a/types/react-test-renderer/v15/tsconfig.json b/types/react-test-renderer/v15/tsconfig.json
index 4be2e2797f..0c98103ec8 100644
--- a/types/react-test-renderer/v15/tsconfig.json
+++ b/types/react-test-renderer/v15/tsconfig.json
@@ -9,6 +9,9 @@
             "react": [
                 "react/v15"
             ],
+            "react-dom": [
+                "react-dom/v15"
+            ],
             "react-test-renderer": [
                 "react-test-renderer/v15"
             ]
@@ -30,4 +33,4 @@
         "shallow/index.d.ts",
         "react-test-renderer-tests.ts"
     ]
-}
\ No newline at end of file
+}
diff --git a/types/react/index.d.ts b/types/react/index.d.ts
index c130068ca0..2c7110237c 100644
--- a/types/react/index.d.ts
+++ b/types/react/index.d.ts
@@ -19,11 +19,12 @@
 //                 Olivier Pascal <https://github.com/pascaloliv>
 //                 Martin Hochel <https://github.com/hotell>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 /// <reference path="global.d.ts" />
 
 import * as CSS from 'csstype';
+import * as PropTypes from 'prop-types';
 
 type NativeAnimationEvent = AnimationEvent;
 type NativeClipboardEvent = ClipboardEvent;
@@ -2205,30 +2206,28 @@ declare namespace React {
     // React.PropTypes
     // ----------------------------------------------------------------------
 
-    type Validator<T> = { bivarianceHack(object: T, key: string, componentName: string, ...rest: any[]): Error | null }["bivarianceHack"];
+    type Validator<T> = PropTypes.Validator<T>;
 
-    interface Requireable<T> extends Validator<T> {
-        isRequired: Validator<T>;
-    }
+    type Requireable<T> = PropTypes.Requireable<T>;
 
-    type ValidationMap<T> = {[K in keyof T]?: Validator<T> };
+    type ValidationMap<T> = PropTypes.ValidationMap<T>;
 
     interface ReactPropTypes {
-        any: Requireable<any>;
-        array: Requireable<any>;
-        bool: Requireable<any>;
-        func: Requireable<any>;
-        number: Requireable<any>;
-        object: Requireable<any>;
-        string: Requireable<any>;
-        node: Requireable<any>;
-        element: Requireable<any>;
-        instanceOf(expectedClass: {}): Requireable<any>;
-        oneOf(types: any[]): Requireable<any>;
-        oneOfType(types: Array<Validator<any>>): Requireable<any>;
-        arrayOf(type: Validator<any>): Requireable<any>;
-        objectOf(type: Validator<any>): Requireable<any>;
-        shape(type: ValidationMap<any>): Requireable<any>;
+        any: typeof PropTypes.any;
+        array: typeof PropTypes.array;
+        bool: typeof PropTypes.bool;
+        func: typeof PropTypes.func;
+        number: typeof PropTypes.number;
+        object: typeof PropTypes.object;
+        string: typeof PropTypes.string;
+        node: typeof PropTypes.node;
+        element: typeof PropTypes.element;
+        instanceOf: typeof PropTypes.instanceOf;
+        oneOf: typeof PropTypes.oneOf;
+        oneOfType: typeof PropTypes.oneOfType;
+        arrayOf: typeof PropTypes.arrayOf;
+        objectOf: typeof PropTypes.objectOf;
+        shape: typeof PropTypes.shape;
     }
 
     //
@@ -2282,6 +2281,21 @@ declare namespace React {
     }
 }
 
+// Declared props take priority over inferred props
+// If declared props have indexed properties, ignore inferred props entirely as keyof gets widened
+type MergePropTypes<P, T> = P & Pick<T, Exclude<keyof T, keyof P>>;
+
+// Any prop that has a default prop becomes optional, but its type is unchanged
+// Undeclared default props are augmented into the resulting allowable attributes
+// If declared props have indexed properties, ignore default props entirely as keyof gets widened
+// Wrap in an outer-level conditional type to allow distribution over props that are unions
+type Defaultize<P, D> = P extends any
+    ? string extends keyof P ? P :
+        & Pick<P, Exclude<keyof P, keyof D>>
+        & Partial<Pick<P, Extract<keyof P, keyof D>>>
+        & Partial<Pick<D, Exclude<keyof D, keyof P>>>
+    : never;
+
 declare global {
     namespace JSX {
         // tslint:disable-next-line:no-empty-interface
@@ -2292,6 +2306,14 @@ declare global {
         interface ElementAttributesProperty { props: {}; }
         interface ElementChildrenAttribute { children: {}; }
 
+        type LibraryManagedAttributes<C, P> = C extends { propTypes: infer T; defaultProps: infer D; }
+            ? Defaultize<MergePropTypes<P, PropTypes.InferProps<T>>, D>
+            : C extends { propTypes: infer T; }
+                ? MergePropTypes<P, PropTypes.InferProps<T>>
+                : C extends { defaultProps: infer D; }
+                    ? Defaultize<P, D>
+                    : P;
+
         // tslint:disable-next-line:no-empty-interface
         interface IntrinsicAttributes extends React.Attributes { }
         // tslint:disable-next-line:no-empty-interface
diff --git a/types/react/test/index.ts b/types/react/test/index.ts
index 227ba5721d..a78a480199 100644
--- a/types/react/test/index.ts
+++ b/types/react/test/index.ts
@@ -1,6 +1,7 @@
 import * as React from "react";
 import * as ReactDOM from "react-dom";
 import * as ReactDOMServer from "react-dom/server";
+import * as PropTypes from "prop-types";
 import createFragment = require("react-addons-create-fragment");
 import CSSTransitionGroup = require("react-addons-css-transition-group");
 import * as LinkedStateMixin from "react-addons-linked-state-mixin";
@@ -15,12 +16,12 @@ import * as DOM from "react-dom-factories";
 
 interface Props extends React.Attributes {
     hello: string;
-    world?: string;
+    world?: string | null;
     foo: number;
 }
 
 interface State {
-    inputValue?: string;
+    inputValue?: string | null;
     seconds?: number;
 }
 
@@ -29,7 +30,7 @@ interface Snapshot {
 }
 
 interface Context {
-    someValue?: string;
+    someValue?: string | null;
 }
 
 interface ChildContext {
@@ -117,15 +118,18 @@ declare const container: Element;
 class ModernComponent extends React.Component<Props, State, Snapshot>
     implements MyComponent, React.ChildContextProvider<ChildContext> {
     static propTypes: React.ValidationMap<Props> = {
-        foo: (() => null) as React.Validator<Props>
+        hello: PropTypes.string.isRequired,
+        world: PropTypes.string,
+        foo: PropTypes.number.isRequired,
+        key: <PropTypes.Validator<string | number | undefined>> PropTypes.oneOfType([PropTypes.number, PropTypes.string])
     };
 
     static contextTypes: React.ValidationMap<Context> = {
-        someValue: (() => null) as React.Validator<Context>
+        someValue: PropTypes.string
     };
 
     static childContextTypes: React.ValidationMap<ChildContext> = {
-        someOtherValue: (() => null) as React.Validator<ChildContext>
+        someOtherValue: PropTypes.string.isRequired
     };
 
     context: Context;
@@ -156,7 +160,7 @@ class ModernComponent extends React.Component<Props, State, Snapshot>
         return DOM.div(null,
             DOM.input({
                 ref: input => this._input = input,
-                value: this.state.inputValue
+                value: this.state.inputValue ? this.state.inputValue : undefined
             }),
             DOM.input({
                 onChange: event => console.log(event.target)
diff --git a/types/react/test/managedAttributes.tsx b/types/react/test/managedAttributes.tsx
new file mode 100644
index 0000000000..56466e1cc8
--- /dev/null
+++ b/types/react/test/managedAttributes.tsx
@@ -0,0 +1,160 @@
+interface LeaveMeAloneDtslint { foo: string; }
+// // Re-enable when we move @types/react to TS 3.0
+
+// import * as React from 'react';
+// import * as PropTypes from 'prop-types';
+
+// interface Props {
+//     bool?: boolean
+//     fnc: () => any
+//     node?: React.ReactNode
+//     num?: number
+//     reqNode: NonNullable<React.ReactNode>
+//     str: string
+// }
+
+// const propTypes = {
+//     bool: PropTypes.bool,
+//     fnc: PropTypes.func.isRequired,
+//     node: PropTypes.node,
+//     num: PropTypes.number,
+//     str: PropTypes.string.isRequired,
+//     extraStr: PropTypes.string.isRequired,
+//     extraNum: PropTypes.number
+// };
+
+// const defaultProps = {
+//     fnc: function() { return 'abc' } as () => any,
+//     extraBool: false,
+//     reqNode: 'text_node' as React.ReactNode
+// };
+
+// class AnnotatedPropTypesAndDefaultProps extends React.Component<Props> {
+//     static propTypes = propTypes;
+//     static defaultProps = defaultProps;
+// }
+
+// const annotatedPropTypesAndDefaultPropsTests = [
+//     // $ExpectError
+//     <AnnotatedPropTypesAndDefaultProps />, // str and extraStr are required
+//     <AnnotatedPropTypesAndDefaultProps extraStr='abc' str='abc' />,
+//     // $ExpectError
+//     <AnnotatedPropTypesAndDefaultProps num='abc' />, // num type mismatch
+//     <AnnotatedPropTypesAndDefaultProps
+//         bool={true}
+//         extraBool={true}
+//         extraNum={0}
+//         extraStr='abc'
+//         fnc={console.log}
+//         node={<span />}
+//         num={0}
+//         reqNode={<span />}
+//         str='abc'
+//     />
+// ];
+
+// class UnannotatedPropTypesAndDefaultProps extends React.Component {
+//     static propTypes = propTypes;
+//     static defaultProps = defaultProps;
+// }
+
+// const unannotatedPropTypesAndDefaultPropsTests = [
+//     // $ExpectError
+//     <UnannotatedPropTypesAndDefaultProps />, // stra and extraStr are required
+//     <UnannotatedPropTypesAndDefaultProps extraStr='abc' str='abc' />,
+//     // $ExpectError
+//     <UnannotatedPropTypesAndDefaultProps extraBool={0} />, // extraBool type mismatch
+//     <UnannotatedPropTypesAndDefaultProps
+//         bool={true}
+//         extraBool={true}
+//         extraNum={0}
+//         extraStr='abc'
+//         fnc={console.log}
+//         node={<span />}
+//         num={0}
+//         reqNode={<span />}
+//         str='abc'
+//     />
+// ];
+
+// class AnnotatedPropTypes extends React.Component<Props> {
+//     static propTypes = propTypes;
+// }
+
+// const annotatedPropTypesTests = [
+//     // $ExpectError
+//     <AnnotatedPropTypes />, // str, extraStr, reqNode and fnc are required
+//     <AnnotatedPropTypes fnc={console.log} extraStr='abc' str='abc' reqNode={<span />} />,
+//     // $ExpectError
+//     <AnnotatedPropTypes fnc={console.log} extraStr='abc' str='abc' reqNode={<span />} extraBool={false} />, // extraBool doesn't exist
+//     // $ExpectError
+//     <AnnotatedPropTypes fnc={console.log} extraStr='abc' str='abc' reqNode={<span />} num='abc' />, // num type mismatch
+//     <AnnotatedPropTypes
+//         bool={false}
+//         extraNum={0}
+//         extraStr='abc'
+//         fnc={console.log}
+//         node={<React.Fragment />}
+//         num={0}
+//         reqNode={<React.Fragment />}
+//         str='abc'
+//     />
+// ];
+
+// class UnannotatedPropTypes extends React.Component {
+//     static propTypes = propTypes;
+// }
+
+// const unannotatedPropTypesTests = [
+//     // $ExpectError
+//     <UnannotatedPropTypes />, // str, extraStr and fnc are required
+//     <UnannotatedPropTypes fnc={console.log} extraStr='abc' str='abc' />,
+//     // $ExpectError
+//     <UnannotatedPropTypes fnc={console.log} extraStr='abc' str='abc' reqNode={<span />} />, // reqNode doesn't exist
+//     // $ExpectError
+//     <UnannotatedPropTypes fnc={console.log} extraStr='abc' str='abc' reqNode={<span />} num='abc' />, // num type mismatch
+//     <UnannotatedPropTypes
+//         bool={false}
+//         extraNum={0}
+//         extraStr='abc'
+//         fnc={console.log}
+//         node={<React.Fragment />}
+//         num={0}
+//         str='abc'
+//     />
+// ];
+
+// class AnnotatedDefaultProps extends React.Component<Props> {
+//     static defaultProps = defaultProps;
+// }
+
+// const annotatedDefaultPropsTests = [
+//     // $ExpectError
+//     <AnnotatedDefaultProps />, // str is required
+//     <AnnotatedDefaultProps str='abc' />,
+//     <AnnotatedDefaultProps str='abc' reqNode={<span />} />,
+//     // $ExpectError
+//     <AnnotatedDefaultProps str={() => { }} />, // str type mismatch
+//     <AnnotatedDefaultProps
+//         bool={true}
+//         extraBool={false}
+//         fnc={console.log}
+//         node={null}
+//         num={0}
+//         reqNode={undefined}
+//         str='abc'
+//     />
+// ];
+
+// class UnannotatedDefaultProps extends React.Component {
+//     static defaultProps = defaultProps;
+// }
+
+// const unannotatedDefaultPropsTests = [
+//     <UnannotatedDefaultProps />,
+//     <UnannotatedDefaultProps
+//         extraBool={true}
+//         fnc={console.log}
+//         reqNode={<span />}
+//     />
+// ];
diff --git a/types/react/tsconfig.json b/types/react/tsconfig.json
index 2bc92c4894..b666fac305 100644
--- a/types/react/tsconfig.json
+++ b/types/react/tsconfig.json
@@ -3,7 +3,8 @@
         "index.d.ts",
         "test/index.ts",
         "test/tsx.tsx",
-        "test/cssProperties.tsx"
+        "test/cssProperties.tsx",
+        "test/managedAttributes.tsx"
     ],
     "compilerOptions": {
         "module": "commonjs",
diff --git a/types/react/v15/index.d.ts b/types/react/v15/index.d.ts
index 939e26c57a..65f00c258f 100644
--- a/types/react/v15/index.d.ts
+++ b/types/react/v15/index.d.ts
@@ -13,7 +13,7 @@
 //                 Dovydas Navickas <https://github.com/DovydasNavickas>
 //                 Stéphane Goetz <https://github.com/onigoetz>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 /*
 Known Problems & Workarounds
diff --git a/types/react/v15/test/index.ts b/types/react/v15/test/index.ts
index 45894cb397..6735e64eeb 100644
--- a/types/react/v15/test/index.ts
+++ b/types/react/v15/test/index.ts
@@ -256,7 +256,7 @@ const markup: string = ReactDOMServer.renderToStaticMarkup(element);
 const notValid: boolean = React.isValidElement(props); // false
 const isValid = React.isValidElement(element); // true
 let domNode = ReactDOM.findDOMNode(component);
-domNode = ReactDOM.findDOMNode(domNode as Element);
+domNode = ReactDOM.findDOMNode(domNode);
 
 //
 // React Elements
diff --git a/types/react/v15/tsconfig.json b/types/react/v15/tsconfig.json
index f9c13ee9f2..d3eb40aae7 100644
--- a/types/react/v15/tsconfig.json
+++ b/types/react/v15/tsconfig.json
@@ -12,9 +12,8 @@
             "dom"
         ],
         "paths": {
-            "react": [
-                "react/v15"
-            ]
+            "react": ["react/v15"],
+            "react-dom": ["react-dom/v15"]
         },
         "noImplicitAny": true,
         "noImplicitThis": false,
@@ -29,4 +28,4 @@
         "forceConsistentCasingInFileNames": true,
         "jsx": "preserve"
     }
-}
\ No newline at end of file
+}
diff --git a/types/recompose/index.d.ts b/types/recompose/index.d.ts
index 49d872c902..f0ad8596ab 100644
--- a/types/recompose/index.d.ts
+++ b/types/recompose/index.d.ts
@@ -141,7 +141,7 @@ declare module 'recompose' {
         stateUpdaterName: TStateUpdaterName,
         initialState: TState | mapper<TOutter, TState>
     ): InferableComponentEnhancerWithProps<
-        TOutter & stateProps<TState, TStateName, TStateUpdaterName>,
+        stateProps<TState, TStateName, TStateUpdaterName>,
         TOutter
     >;
 
diff --git a/types/recompose/recompose-tests.tsx b/types/recompose/recompose-tests.tsx
index 8c45ac2021..9058a10f4d 100644
--- a/types/recompose/recompose-tests.tsx
+++ b/types/recompose/recompose-tests.tsx
@@ -257,7 +257,7 @@ function testWithState() {
     // We can also actually provide the generic necessary
     const enhancer3 = withState<OutterProps, number, "count", "setCount">("count", "setCount", 1);
     const Enhanced3 = enhancer3(props => {
-        return <div>{props.title}</div>; 
+        return <div>{props.count}</div>;
     });
     const rendered3 = (
         <Enhanced3 title="foo" />
diff --git a/types/single-spa-react/index.d.ts b/types/single-spa-react/index.d.ts
index 67721695ec..82656bfaf5 100644
--- a/types/single-spa-react/index.d.ts
+++ b/types/single-spa-react/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/CanopyTax/single-spa-react
 // Definitions by: Garrett Smith <https://github.com/Garrett-Smith-iq>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.6
+// TypeScript Version: 2.8
 
 import * as React from 'react';
 import * as ReactDOM from 'react-dom';