diff --git a/types/redux-actions/index.d.ts b/types/redux-actions/index.d.ts
index d088592217..cc8e813e7c 100644
--- a/types/redux-actions/index.d.ts
+++ b/types/redux-actions/index.d.ts
@@ -4,6 +4,7 @@
 //                 Alex Gorbatchev <https://github.com/alexgorbatchev>,
 //                 Alec Hill <https://github.com/alechill>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.3
 
 export as namespace ReduxActions;
 
@@ -22,12 +23,12 @@ export interface ActionMeta<Payload, Meta> extends Action<Payload> {
     meta: Meta;
 }
 
-export interface ReducerMap<State, Payload> {
-    [actionType: string]: Reducer<State, Payload> | ReducerNextThrow<State, Payload>;
+export interface ReducerMap<State> {
+    [actionType: string]: Reducer<State, any> | ReducerNextThrow<State, any>;
 }
 
-export interface ReducerMapMeta<State, Payload, Meta> {
-    [actionType: string]: ReducerMeta<State, Payload, Meta> | ReducerNextThrowMeta<State, Payload, Meta>;
+export interface ReducerMapMeta<State, Meta> {
+    [actionType: string]: ReducerMeta<State, any, Meta> | ReducerNextThrowMeta<State, any, Meta>;
 }
 
 export interface ReducerNextThrow<State, Payload> {
@@ -40,58 +41,28 @@ export interface ReducerNextThrowMeta<State, Payload, Meta> {
     throw?(state: State, action: ActionMeta<Payload, Meta>): State;
 }
 
-export type ActionFunctions<Payload> =
-    ActionFunction0<Action<Payload>> |
-    ActionFunction1<any, Action<Payload>> |
-    ActionFunction2<any, any, Action<Payload>> |
-    ActionFunction3<any, any, any, Action<Payload>> |
-    ActionFunction4<any, any, any, any, Action<Payload>> |
-    ActionFunctionAny<Action<Payload>>;
+export type ActionFunctions<Payload> = ActionFunctionAny<Action<Payload>>;
 
 export type Reducer<State, Payload> = (state: State, action: Action<Payload>) => State;
 
 export type ReducerMeta<State, Payload, Meta> = (state: State, action: ActionMeta<Payload, Meta>) => State;
 
 /** argument inferring borrowed from lodash definitions */
-export type ActionFunction0<R> = () => R;
-export type ActionFunction1<T1, R> = (t1: T1) => R;
-export type ActionFunction2<T1, T2, R> = (t1: T1, t2: T2) => R;
-export type ActionFunction3<T1, T2, T3, R>  = (t1: T1, t2: T2, t3: T3) => R;
-export type ActionFunction4<T1, T2, T3, T4, R> = (t1: T1, t2: T2, t3: T3, t4: T4) => R;
+export type ActionFunction<R, T1 = undefined, T2 = undefined, T3 = undefined, T4 = undefined> = (t1?: T1, t2?: T2, t3?: T3, t4?: T4) => R;
 export type ActionFunctionAny<R> = (...args: any[]) => R;
 
 export function createAction(
     actionType: string
-): ActionFunction0<Action<void>>;
+): ActionFunction<Action<void>>;
 
-export function createAction<Payload>(
+export function createAction<Payload, Arg1 = undefined, Arg2 = undefined, Arg3 = undefined, Arg4 = undefined>(
     actionType: string,
-    payloadCreator: ActionFunction0<Payload>
-): ActionFunction0<Action<Payload>>;
-
-export function createAction<Payload, Arg1>(
-    actionType: string,
-    payloadCreator: ActionFunction1<Arg1, Payload>
-): ActionFunction1<Arg1, Action<Payload>>;
-
-export function createAction<Payload, Arg1, Arg2>(
-    actionType: string,
-    payloadCreator: ActionFunction2<Arg1, Arg2, Payload>
-): ActionFunction2<Arg1, Arg2, Action<Payload>>;
-
-export function createAction<Payload, Arg1, Arg2, Arg3>(
-    actionType: string,
-    payloadCreator: ActionFunction3<Arg1, Arg2, Arg3, Payload>
-): ActionFunction3<Arg1, Arg2, Arg3, Action<Payload>>;
-
-export function createAction<Payload, Arg1, Arg2, Arg3, Arg4>(
-    actionType: string,
-    payloadCreator: ActionFunction4<Arg1, Arg2, Arg3, Arg4, Payload>
-): ActionFunction4<Arg1, Arg2, Arg3, Arg4, Action<Payload>>;
+    payloadCreator: ActionFunction<Payload, Arg1, Arg2, Arg3, Arg4>
+): ActionFunction<Action<Payload>, Arg1, Arg2, Arg3, Arg4>;
 
 export function createAction<Payload>(
     actionType: string
-): ActionFunction1<Payload, Action<Payload>>;
+): ActionFunction<Action<Payload>, Payload>;
 
 export function createAction<Payload, Meta>(
     actionType: string,
@@ -99,29 +70,11 @@ export function createAction<Payload, Meta>(
     metaCreator: ActionFunctionAny<Meta>
 ): ActionFunctionAny<ActionMeta<Payload, Meta>>;
 
-export function createAction<Payload, Meta, Arg1>(
-    actionType: string,
-    payloadCreator: ActionFunction1<Arg1, Payload>,
-    metaCreator: ActionFunction1<Arg1, Meta>
-): ActionFunction1<Arg1, ActionMeta<Payload, Meta>>;
-
-export function createAction<Payload, Meta, Arg1, Arg2>(
-    actionType: string,
-    payloadCreator: ActionFunction2<Arg1, Arg2, Payload>,
-    metaCreator: ActionFunction2<Arg1, Arg2, Meta>
-): ActionFunction2<Arg1, Arg2, ActionMeta<Payload, Meta>>;
-
-export function createAction<Payload, Meta, Arg1, Arg2, Arg3>(
-    actionType: string,
-    payloadCreator: ActionFunction3<Arg1, Arg2, Arg3, Payload>,
-    metaCreator: ActionFunction3<Arg1, Arg2, Arg3, Meta>
-): ActionFunction3<Arg1, Arg2, Arg3, ActionMeta<Payload, Meta>>;
-
 export function createAction<Payload, Meta, Arg1, Arg2, Arg3, Arg4>(
     actionType: string,
-    payloadCreator: ActionFunction4<Arg1, Arg2, Arg3, Arg4, Payload>,
-    metaCreator: ActionFunction4<Arg1, Arg2, Arg3, Arg4, Meta>
-): ActionFunction4<Arg1, Arg2, Arg3, Arg4, ActionMeta<Payload, Meta>>;
+    payloadCreator: ActionFunction<Payload, Arg1, Arg2, Arg3, Arg4>,
+    metaCreator: ActionFunction<Meta, Arg1, Arg2, Arg3, Arg4>
+): ActionFunction<ActionMeta<Payload, Meta>, Arg1, Arg2, Arg3, Arg4>;
 
 export function handleAction<State, Payload>(
     actionType: string | ActionFunctions<Payload>,
@@ -135,34 +88,36 @@ export function handleAction<State, Payload, Meta>(
     initialState: State
 ): Reducer<State, Payload>;
 
-export function handleActions<StateAndPayload>(
-    reducerMap: ReducerMap<StateAndPayload, StateAndPayload>,
-    initialState: StateAndPayload
-): Reducer<StateAndPayload, StateAndPayload>;
-
-export function handleActions<State, Payload>(
-    reducerMap: ReducerMap<State, Payload>,
+export function handleActions<State>(
+    reducerMap: ReducerMap<State>,
     initialState: State
-): Reducer<State, Payload>;
+): Reducer<State, any>;
 
-export function handleActions<State, Payload, Meta>(
-    reducerMap: ReducerMapMeta<State, Payload, Meta>,
+export function handleActions<State, Meta>(
+    reducerMap: ReducerMapMeta<State, Meta>,
     initialState: State
-): ReducerMeta<State, Payload, Meta>;
+): ReducerMeta<State, any, Meta>;
 
 export function combineActions(...actionTypes: Array<ActionFunctions<any> | string>): string;
 
-export interface ActionMap<Payload, Meta> {
+export interface ActionMap<Payload, Meta = undefined> {
     [actionType: string]:
-        ActionMap<Payload, Meta> |
-        ActionFunctionAny<Payload> |
-        [ActionFunctionAny<Payload>, ActionFunctionAny<Meta>] |
-        undefined;
+    ActionMap<Payload, Meta> |
+    ActionFunctionAny<Payload> |
+    [ActionFunctionAny<Payload>, ActionFunctionAny<Meta>] |
+    undefined;
 }
 
+export function createActions<Payload>(
+    actionMap: ActionMap<Payload>,
+    ...identityActions: string[]
+): {
+    [actionName: string]: ActionFunctionAny<Action<Payload>>
+};
+
 export function createActions<Payload, Meta>(
     actionMap: ActionMap<Payload, Meta>,
     ...identityActions: string[]
 ): {
-    [actionName: string]: ActionFunctionAny<Action<Payload>>
+    [actionName: string]: ActionFunctionAny<ActionMeta<Payload, Meta>>
 };
diff --git a/types/redux-actions/redux-actions-tests.ts b/types/redux-actions/redux-actions-tests.ts
index 003599c8bc..e12efd461f 100644
--- a/types/redux-actions/redux-actions-tests.ts
+++ b/types/redux-actions/redux-actions-tests.ts
@@ -1,4 +1,4 @@
-import * as ReduxActions from "redux-actions";
+import * as ReduxActions from 'redux-actions';
 
 let state: number;
 const minimalAction: ReduxActions.BaseAction = { type: 'INCREMENT' };
@@ -33,14 +33,14 @@ const actionHandlerWithReduceMap = ReduxActions.handleAction<number, number>(
 
 state = actionHandlerWithReduceMap(0, multiplyAction(10));
 
-const actionsHandler = ReduxActions.handleActions<number, number>({
+const actionsHandler = ReduxActions.handleActions({
     INCREMENT: (state: number, action: ReduxActions.Action<number>) => state + action.payload,
     MULTIPLY: (state: number, action: ReduxActions.Action<number>) => state * action.payload
 }, 0);
 
 state = actionsHandler(0, { type: 'INCREMENT' });
 
-const actionsHandlerWithInitialState = ReduxActions.handleActions<number, number>({
+const actionsHandlerWithInitialState = ReduxActions.handleActions({
     INCREMENT: {
         next: (state: number, action: ReduxActions.Action<number>) => state + action.payload,
     },
@@ -112,9 +112,9 @@ ReduxActions.Action<TypedPayload> = ReduxActions.createAction<TypedPayload, numb
 const actionFrom2Args = typedIncrementAction2TypedArgs(10, '100');
 actionFrom1Arg.payload.increase === 110;
 
-const typedActionHandlerReducerMap = ReduxActions.handleActions<TypedState, TypedPayload>(
+const typedActionHandlerReducerMap = ReduxActions.handleActions(
     {
-        INCREMENT: (state: TypedState, action: ReduxActions.Action<TypedPayload>) => ({ value: state.value + 1 })
+        INCREMENT: (state: TypedState, action: ReduxActions.Action<any>) => ({ value: state.value + 1 })
     },
     {value: 1}
 );
@@ -144,7 +144,7 @@ const typedActionHandlerWithMeta = ReduxActions.handleAction<TypedState, TypedPa
 
 typedState = typedActionHandlerWithMeta({ value: 0 }, typedIncrementByActionWithMetaAnyArgs(10));
 
-const typedActionHandlerReducerMetaMap = ReduxActions.handleActions<TypedState, TypedPayload, MetaType>(
+const typedActionHandlerReducerMetaMap = ReduxActions.handleActions<TypedState, MetaType>(
     {
         INCREMENT_BY: {
             next(state: TypedState, action: ReduxActions.ActionMeta<TypedPayload, MetaType>) {
@@ -159,7 +159,7 @@ const typedActionHandlerReducerMetaMap = ReduxActions.handleActions<TypedState,
 typedState = typedActionHandlerReducerMetaMap({ value: 0 }, actionMetaFromAnyArgs);
 
 const typedActionWithMeta1TypedArg: (value: number) => ReduxActions.ActionMeta<TypedPayload, MetaType> =
-    ReduxActions.createAction<TypedPayload, MetaType, number>(
+    ReduxActions.createAction(
         'INCREMENT_BY',
         amount => ({ increase: amount }),
         amount => ({ remote: true })
@@ -172,7 +172,7 @@ actionMetaFrom1Arg.meta.remote;
 typedState = typedActionHandlerReducerMetaMap({ value: 0 }, actionMetaFrom1Arg);
 
 const typedActionWithMeta2TypedArgs: (value: number, remote: boolean) => ReduxActions.ActionMeta<TypedPayload, MetaType> =
-    ReduxActions.createAction<TypedPayload, MetaType, number, boolean>(
+    ReduxActions.createAction(
         'INCREMENT_BY',
         (amount, remote)  => ({ increase: amount }),
         (amount, remote) => ({ remote })
diff --git a/types/redux-promise/index.d.ts b/types/redux-promise/index.d.ts
index 415709cd4e..5c0a5b3f50 100644
--- a/types/redux-promise/index.d.ts
+++ b/types/redux-promise/index.d.ts
@@ -2,6 +2,7 @@
 // Project: https://github.com/acdlite/redux-promise
 // Definitions by: Rogelio Morrell Caballero <https://github.com/molekilla>, Kaur Kuut <https://github.com/xStrom>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.3
 
 import * as Redux from 'redux';