diff --git a/types/mirrorx/index.d.ts b/types/mirrorx/index.d.ts
index 443712c325..e2fa0ee465 100644
--- a/types/mirrorx/index.d.ts
+++ b/types/mirrorx/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/mirrorjs/mirror
 // Definitions by: Aaronphy <https://github.com/aaronphy>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 import * as H from 'history';
 
diff --git a/types/next-redux-saga/index.d.ts b/types/next-redux-saga/index.d.ts
index b7575fba16..0366868d97 100644
--- a/types/next-redux-saga/index.d.ts
+++ b/types/next-redux-saga/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/bmealhouse/next-redux-saga
 // Definitions by: Leo Cavalcante <https://github.com/leocavalcante>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 import { ComponentType } from "react";
 
diff --git a/types/next-redux-wrapper/index.d.ts b/types/next-redux-wrapper/index.d.ts
index 84d71b46c1..10fa2d44d1 100644
--- a/types/next-redux-wrapper/index.d.ts
+++ b/types/next-redux-wrapper/index.d.ts
@@ -3,7 +3,7 @@
 // Definitions by: Steve <https://github.com/stevegeek>
 //                 Jungwoo-An <https://github.com/Jungwoo-An>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 /// <reference types="node" />
 
diff --git a/types/react-intl-redux/index.d.ts b/types/react-intl-redux/index.d.ts
index 9d9e805df9..4410e7c019 100644
--- a/types/react-intl-redux/index.d.ts
+++ b/types/react-intl-redux/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/ratson/react-intl-redux
 // Definitions by: Karol Janyst <https://github.com/LKay>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 import { Action, AnyAction } from "redux"
 import { Provider as ReduxProvider } from "react-redux"
diff --git a/types/react-lifecycle-component/index.d.ts b/types/react-lifecycle-component/index.d.ts
index 315d04f7fb..bb6dc65dd8 100644
--- a/types/react-lifecycle-component/index.d.ts
+++ b/types/react-lifecycle-component/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/JamieDixon/react-lifecycle-component
 // Definitions by: Alexander Fisher <https://github.com/pixelshaded>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 import { ComponentLifecycle, Component, ComponentClass } from 'react';
 import { Connect } from 'react-redux';
diff --git a/types/react-redux-toastr/index.d.ts b/types/react-redux-toastr/index.d.ts
index fc11da9c43..9a7a115725 100644
--- a/types/react-redux-toastr/index.d.ts
+++ b/types/react-redux-toastr/index.d.ts
@@ -4,7 +4,7 @@
 //                 Artyom Stukans <https://github.com/artyomsv>
 //                 Mika Kuitunen <https://github.com/kulmajaba>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 import { Component } from 'react';
 import { Action, Reducer } from 'redux';
diff --git a/types/react-redux/index.d.ts b/types/react-redux/index.d.ts
index 2f919581f4..bcbcced0bd 100644
--- a/types/react-redux/index.d.ts
+++ b/types/react-redux/index.d.ts
@@ -13,7 +13,7 @@
 //                 Anatoli Papirovski <https://github.com/apapirovski>
 //                 Boris Sergeyev <https://github.com/surgeboris>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 // Known Issue:
 // There is a known issue in TypeScript, which doesn't allow decorators to change the signature of the classes
@@ -65,11 +65,11 @@ export type AdvancedComponentDecorator<TProps, TOwnProps> =
  *   DecorationTargetProps[P] definition, its definition will be that of InjectedProps[P]
  */
 export type Matching<InjectedProps, DecorationTargetProps> = {
-	[P in keyof DecorationTargetProps]: P extends keyof InjectedProps
-		? InjectedProps[P] extends DecorationTargetProps[P]
-			? DecorationTargetProps[P]
-			: InjectedProps[P]
-		: DecorationTargetProps[P];
+    [P in keyof DecorationTargetProps]: P extends keyof InjectedProps
+        ? InjectedProps[P] extends DecorationTargetProps[P]
+            ? DecorationTargetProps[P]
+            : InjectedProps[P]
+        : DecorationTargetProps[P];
 };
 
 /**
@@ -95,16 +95,16 @@ export type GetProps<C> = C extends ComponentType<infer P> ? P : never;
 // Applies LibraryManagedAttributes (proper handling of defaultProps
 // and propTypes), as well as defines WrappedComponent.
 export type ConnectedComponentClass<C, P> = ComponentClass<JSX.LibraryManagedAttributes<C, P>> & {
-	WrappedComponent: C;
+    WrappedComponent: C;
 };
 
 // Injects props and removes them from the prop requirements.
 // Will not pass through the injected props if they are passed in during
 // render. Also adds new prop requirements from TNeedsProps.
 export type InferableComponentEnhancerWithProps<TInjectedProps, TNeedsProps> =
-	<C extends ComponentType<Matching<TInjectedProps, GetProps<C>>>>(
-		component: C
-	) => ConnectedComponentClass<C, Omit<GetProps<C>, keyof Shared<TInjectedProps, GetProps<C>>> & TNeedsProps>;
+    <C extends ComponentType<Matching<TInjectedProps, GetProps<C>>>>(
+        component: C
+    ) => ConnectedComponentClass<C, Omit<GetProps<C>, keyof Shared<TInjectedProps, GetProps<C>>> & TNeedsProps>;
 
 // Injects props and removes them from the prop requirements.
 // Will not pass through the injected props if they are passed in during
@@ -112,14 +112,19 @@ export type InferableComponentEnhancerWithProps<TInjectedProps, TNeedsProps> =
 export type InferableComponentEnhancer<TInjectedProps> =
     InferableComponentEnhancerWithProps<TInjectedProps, {}>;
 
+export type InferThunkActionCreatorType<TActionCreator extends (...args: any[]) => any> =
+    TActionCreator extends (...args: infer TParams) => (...args: any[]) => infer TReturn
+        ? (...args: TParams) => TReturn
+        : TActionCreator;
+
 export type HandleThunkActionCreator<TActionCreator> =
-    TActionCreator extends (...args: any[]) => (...args: any[]) => any
-        ? ReturnType<TActionCreator>
+    TActionCreator extends (...args: any[]) => any
+        ? InferThunkActionCreatorType<TActionCreator>
         : TActionCreator;
 
 // redux-thunk middleware returns thunk's return value from dispatch call
 // https://github.com/reduxjs/redux-thunk#composition
-export type WithThunkActionCreators<TDispatchProps> =
+export type ResolveThunks<TDispatchProps> =
     TDispatchProps extends { [key: string]: any }
         ? {
             [C in keyof TDispatchProps]: HandleThunkActionCreator<TDispatchProps[C]>
@@ -155,17 +160,27 @@ export interface Connect {
 
     <no_state = {}, TDispatchProps = {}, TOwnProps = {}>(
         mapStateToProps: null | undefined,
-        mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>
+        mapDispatchToProps: MapDispatchToPropsNonObject<TDispatchProps, TOwnProps>
+    ): InferableComponentEnhancerWithProps<TDispatchProps, TOwnProps>;
+
+    <no_state = {}, TDispatchProps = {}, TOwnProps = {}>(
+        mapStateToProps: null | undefined,
+        mapDispatchToProps: TDispatchProps,
     ): InferableComponentEnhancerWithProps<
-        WithThunkActionCreators<TDispatchProps>,
+        ResolveThunks<TDispatchProps>,
         TOwnProps
     >;
 
     <TStateProps = {}, TDispatchProps = {}, TOwnProps = {}, State = {}>(
         mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps, State>,
-        mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>
+        mapDispatchToProps: MapDispatchToPropsNonObject<TDispatchProps, TOwnProps>
+    ): InferableComponentEnhancerWithProps<TStateProps & TDispatchProps, TOwnProps>;
+
+    <TStateProps = {}, TDispatchProps = {}, TOwnProps = {}, State = {}>(
+        mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps, State>,
+        mapDispatchToProps: TDispatchProps,
     ): InferableComponentEnhancerWithProps<
-        TStateProps & WithThunkActionCreators<TDispatchProps>,
+        TStateProps & ResolveThunks<TDispatchProps>,
         TOwnProps
     >;
 
@@ -203,21 +218,35 @@ export interface Connect {
 
     <TStateProps = {}, TDispatchProps = {}, TOwnProps = {}>(
         mapStateToProps: null | undefined,
-        mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>,
+        mapDispatchToProps: MapDispatchToPropsNonObject<TDispatchProps, TOwnProps>,
+        mergeProps: null | undefined,
+        options: Options<{}, TStateProps, TOwnProps>
+    ): InferableComponentEnhancerWithProps<TDispatchProps, TOwnProps>;
+
+    <TStateProps = {}, TDispatchProps = {}, TOwnProps = {}>(
+        mapStateToProps: null | undefined,
+        mapDispatchToProps: TDispatchProps,
         mergeProps: null | undefined,
         options: Options<{}, TStateProps, TOwnProps>
     ): InferableComponentEnhancerWithProps<
-        WithThunkActionCreators<TDispatchProps>,
+        ResolveThunks<TDispatchProps>,
         TOwnProps
     >;
 
     <TStateProps = {}, TDispatchProps = {}, TOwnProps = {}, State = {}>(
         mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps, State>,
-        mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>,
+        mapDispatchToProps: MapDispatchToPropsNonObject<TDispatchProps, TOwnProps>,
+        mergeProps: null | undefined,
+        options: Options<State, TStateProps, TOwnProps>
+    ): InferableComponentEnhancerWithProps<TStateProps & TDispatchProps, TOwnProps>;
+
+    <TStateProps = {}, TDispatchProps = {}, TOwnProps = {}, State = {}>(
+        mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps, State>,
+        mapDispatchToProps: TDispatchProps,
         mergeProps: null | undefined,
         options: Options<State, TStateProps, TOwnProps>
     ): InferableComponentEnhancerWithProps<
-        TStateProps & WithThunkActionCreators<TDispatchProps>,
+        TStateProps & ResolveThunks<TDispatchProps>,
         TOwnProps
     >;
     // tslint:enable:no-unnecessary-generics
@@ -243,10 +272,12 @@ export type MapDispatchToProps<TDispatchProps, TOwnProps> =
     MapDispatchToPropsFunction<TDispatchProps, TOwnProps> | TDispatchProps;
 
 export type MapDispatchToPropsFactory<TDispatchProps, TOwnProps> =
-    (dispatch: Dispatch<Action>, ownProps: TOwnProps) => MapDispatchToProps<TDispatchProps, TOwnProps>;
+    (dispatch: Dispatch<Action>, ownProps: TOwnProps) => MapDispatchToPropsFunction<TDispatchProps, TOwnProps>;
 
 export type MapDispatchToPropsParam<TDispatchProps, TOwnProps> = MapDispatchToPropsFactory<TDispatchProps, TOwnProps> | MapDispatchToProps<TDispatchProps, TOwnProps>;
 
+export type MapDispatchToPropsNonObject<TDispatchProps, TOwnProps> = MapDispatchToPropsFactory<TDispatchProps, TOwnProps> | MapDispatchToPropsFunction<TDispatchProps, TOwnProps>;
+
 export type MergeProps<TStateProps, TDispatchProps, TOwnProps, TMergedProps> =
     (stateProps: TStateProps, dispatchProps: TDispatchProps, ownProps: TOwnProps) => TMergedProps;
 
diff --git a/types/react-redux/react-redux-tests.tsx b/types/react-redux/react-redux-tests.tsx
index aff8515e87..554ace09ff 100644
--- a/types/react-redux/react-redux-tests.tsx
+++ b/types/react-redux/react-redux-tests.tsx
@@ -102,23 +102,79 @@ function MapDispatch() {
 }
 
 function MapDispatchWithThunkActionCreators() {
-    class TestComponent extends React.Component<{
-        foo: string,
-        onClick(): void,
-        thunkAction(): Promise<void>
-    }> {}
-
-    const mapDispatchToProps = () => ({
-        onClick: () => {},
-        thunkAction: () => async () => {}
+    const simpleAction = (payload: boolean) => ({
+        type: 'SIMPLE_ACTION',
+        payload,
     });
+    const thunkAction = (param1: number, param2: string) => (
+        async (dispatch: Dispatch, { foo }: OwnProps) => {
+            return foo;
+        }
+    );
+    interface OwnProps {
+        foo: string;
+    }
+    interface TestComponentProps extends OwnProps {
+        simpleAction: typeof simpleAction;
+        thunkAction(param1: number, param2: string): Promise<string>;
+   }
+    class TestComponent extends React.Component<TestComponentProps> {}
 
-    const Test = connect(
-        null,
-        mapDispatchToProps,
+    const mapStateToProps = ({ foo }: { foo: string }) => ({ foo });
+    const mapDispatchToProps = { simpleAction, thunkAction };
+
+    const Test1 = connect(null, mapDispatchToProps)(TestComponent);
+    const Test2 = connect(mapStateToProps, mapDispatchToProps)(TestComponent);
+    const Test3 = connect(
+        null, mapDispatchToProps, null, { storeKey: 'somekey' }
     )(TestComponent);
+    const Test4 = connect(
+        mapStateToProps, mapDispatchToProps, null, { storeKey: 'somekey' }
+    )(TestComponent);
+    const verify = <div>
+        <Test1 foo='bar' />;
+        <Test2 />
+        <Test3 foo='bar' />;
+        <Test4 />
+    </div>;
+}
 
-    const verify = <Test foo='bar' />;
+function MapManualDispatchThatLooksLikeThunk() {
+    interface OwnProps {
+        foo: string;
+    }
+    interface TestComponentProps extends OwnProps {
+        remove: (item: string) => () => object;
+   }
+    class TestComponent extends React.Component<TestComponentProps> {
+        render() {
+            return <div onClick={this.props.remove('someid')} />;
+        }
+    }
+
+    const mapStateToProps = ({ foo }: { foo: string }) => ({ foo });
+    function mapDispatchToProps(dispatch: Dispatch) {
+        return {
+            remove(item: string) {
+                return () => dispatch({ type: 'REMOVE_ITEM', item });
+            }
+        };
+    }
+
+    const Test1 = connect(null, mapDispatchToProps)(TestComponent);
+    const Test2 = connect(mapStateToProps, mapDispatchToProps)(TestComponent);
+    const Test3 = connect(
+        null, mapDispatchToProps, null, { storeKey: 'somekey' }
+    )(TestComponent);
+    const Test4 = connect(
+        mapStateToProps, mapDispatchToProps, null, { storeKey: 'somekey' }
+    )(TestComponent);
+    const verify = <div>
+        <Test1 foo='bar' />;
+        <Test2 />
+        <Test3 foo='bar' />;
+        <Test4 />
+    </div>;
 }
 
 function MapStateAndDispatchObject() {
diff --git a/types/react-router-redux/index.d.ts b/types/react-router-redux/index.d.ts
index 9dfbd58c11..7abdc88505 100644
--- a/types/react-router-redux/index.d.ts
+++ b/types/react-router-redux/index.d.ts
@@ -4,7 +4,7 @@
 //                 Shoya Tanaka <https://github.com/8398a7>
 //                 Mykolas <https://github.com/mykolas>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 import {
     Store,
diff --git a/types/redux-auth-wrapper/index.d.ts b/types/redux-auth-wrapper/index.d.ts
index 728be4a54b..3ec88b50dc 100644
--- a/types/redux-auth-wrapper/index.d.ts
+++ b/types/redux-auth-wrapper/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/mjrussell/redux-auth-wrapper
 // Definitions by: Karol Janyst <https://github.com/LKay>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 import { ComponentClass, StatelessComponent, ComponentType, ReactType } from "react";
 
diff --git a/types/redux-devtools/index.d.ts b/types/redux-devtools/index.d.ts
index 234fb9a4bb..ddead025ff 100644
--- a/types/redux-devtools/index.d.ts
+++ b/types/redux-devtools/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/gaearon/redux-devtools
 // Definitions by: Petryshyn Sergii <https://github.com/mc-petry>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 import * as React from 'react';
 import { GenericStoreEnhancer } from 'redux';
diff --git a/types/redux-form/index.d.ts b/types/redux-form/index.d.ts
index e80c196c0a..5851728369 100644
--- a/types/redux-form/index.d.ts
+++ b/types/redux-form/index.d.ts
@@ -12,7 +12,7 @@
 //                 Maddi Joyce <https://github.com/maddijoyce>
 //                 Kamil Wojcik <https://github.com/smifun>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.9
+// TypeScript Version: 3.0
 import {
   ComponentClass,
   StatelessComponent,
diff --git a/types/redux-form/v6/index.d.ts b/types/redux-form/v6/index.d.ts
index a8209a7643..5127457884 100644
--- a/types/redux-form/v6/index.d.ts
+++ b/types/redux-form/v6/index.d.ts
@@ -2,7 +2,7 @@
 // Project: https://github.com/erikras/redux-form
 // Definitions by: Carson Full <https://github.com/carsonf>, Daniel Lytkin <https://github.com/aikoven>, Karol Janyst <https://github.com/LKay>, Luka Zakrajsek <https://github.com/bancek>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
+// TypeScript Version: 3.0
 
 import {
   ComponentClass,