diff --git a/select2/select2.d.ts b/select2/select2.d.ts
index 0752ddf98..8309a366d 100644
--- a/select2/select2.d.ts
+++ b/select2/select2.d.ts
@@ -1,189 +1,191 @@
-// Type definitions for Select2 3.2
-// Project: http://ivaynberg.github.com/select2/
-// Definitions by: Boris Yankov <https://github.com/borisyankov/>
-// Definitions: https://github.com/borisyankov/DefinitelyTyped
-
-
-/// <reference path="../jquery/jquery.d.ts"/>
-
-interface Select2QueryOptions {
-    term?: string;
-    page?: number;
-    context?: any;
-    callback?: (result: { results: any; more?: boolean; context?: any; }) => void;
-}
-
-interface AjaxFunction {
-    (settings: JQueryAjaxSettings): JQueryXHR;
-    (url: string, settings?: JQueryAjaxSettings): JQueryXHR;
-}
-
-interface Select2AjaxOptions {
-    transport?: AjaxFunction;
-    /**
-    * Url to make request to, Can be string or a function returning a string.
-    */
-    url?: any;
-    dataType?: string;
-    quietMillis?: number;
-    cache?: boolean;
-    data?: (term: string, page: number, context: any) => any;
-    results?: (term: any, page: number, context: any) => any;
-}
-
-interface IdTextPair {
-    id: any;
-    text: string;
-}
-
-interface Select2Options {
-    width?: string;
-    dropdownAutoWidth?: boolean;
-    minimumInputLength?: number;
-    minimumResultsForSearch?: number;
-    maximumSelectionSize?: number;
-    placeholder?: string;
-    separator?: string;
-    allowClear?: boolean;
-    multiple?: boolean;
-    closeOnSelect?: boolean;
-    openOnEnter?: boolean;
-    id?: (object: any) => string;
-    matcher?: (term: string, text: string, option: any) => boolean;
-    formatSelection?: (object: any, container: JQuery, escapeMarkup:(markup: string) => string) => string;
-    formatResult?: (object: any, container: JQuery, query: any, escapeMarkup: (markup: string) => string) => string;
-    formatResultCssClass?: (object: any) => string;
-    formatNoMatches?: (term: string) => string;
-    formatSearching?: () => string;
-    formatInputTooShort?: (term: string, minLength: number) => string;
-    formatSelectionTooBig?: (maxSize: number) => string;
-    formatLoadMore?: (pageNumber: number) => string;
-    createSearchChoice?: (term: string, data: any) => any;
-    initSelection?: (element: JQuery, callback: (data: any) => void ) => void;
-    tokenizer?: (input: string, selection: any[], selectCallback: () => void , options: Select2Options) => string;
-    tokenSeparators?: string[];
-    query?: (options: Select2QueryOptions) => void;
-    ajax?: Select2AjaxOptions;
-    data?: any;
-    tags?: any;
-    containerCss?: any;
-    containerCssClass?: any;
-    dropdownCss?: any;
-    dropdownCssClass?: any;
-    escapeMarkup?: (markup: string) => string;
-    theme?: string;
-    /**
-    * Template can return both plain string that will be HTML escaped and a jquery object that can render HTML
-    */
-    templateSelection?: (object: Select2SelectionObject) => any;
-    templateResult?: (object: Select2SelectionObject) => any;
-}
-
-interface Select2JQueryEventObject extends JQueryEventObject {
-    val: any;
-    added: any;
-    removed: any;
-    choice: {
-        id: any;
-        text: string;
-    };
-}
-
-interface Select2SelectionObject {
-    disabled: boolean,
-    element: HTMLOptionElement,
-    id: string,
-    selected: boolean,
-    text: string,
-    title: string,
-}
-
-interface JQuery {
-    off(events?: "change", selector?: any, handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-
-    on(events: "change", selector?: string, data?: any, handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "change", selector?: string, handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "change", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-opening", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-open", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-close", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-highlight", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-selecting", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-removing", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-removed", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-loaded", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-focus", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-blur", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-opening", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-open", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-close", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-highlight", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-selecting", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-removing", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-removed", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-loaded", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-focus", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-    on(events: "select2-blur", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
-
-    select2(): JQuery;
-    select2(it: IdTextPair): JQuery;
-
-    /**
-    * Get the id value of the current selection
-    */
-    select2(method: 'val'): any;
-    /**
-    * Set the id value of the current selection
-    * @params value Value to set the id to
-    * @params triggerChange Should a change event be triggered
-    */
-    select2(method: 'val', value: any, triggerChange?: boolean): any;
-    /**
-    * Get the data object of the current selection
-    */
-    select2(method: 'data'): any;
-    /**
-    * Set the data of the current selection
-    * @params value Object to set the data to
-    * @params triggerChange Should a change event be triggered
-    */
-    select2(method: 'data', value: any, triggerChange?: boolean): any;
-    /**
-    * Reverts changes to DOM done by Select2. Any selection done via Select2 will be preserved.
-    */
-    select2(method: 'destroy'): JQuery;
-    /**
-    * Opens the dropdown
-    */
-    select2(method: 'open'): JQuery;
-    /**
-    * Closes the dropdown
-    */
-    select2(method: 'close'): JQuery;
-    /**
-    * Enables or disables Select2 and its underlying form component
-    * @param value True if it should be enabled false if it should be disabled
-    */
-    select2(method: 'enable', value: boolean): JQuery;
-    /**
-    * Toggles readonly mode on Select2 and its underlying form component
-    * @param value True if it should be readonly false if it should be read write
-    */
-    select2(method: 'readonly', value: boolean): JQuery;
-    /**
-    * Retrieves the main container element that wraps all of DOM added by Select2
-    */
-    select2(method: 'container'): JQuery;
-    /**
-    * Notifies Select2 that a drag and drop sorting operation has started
-    */
-    select2(method: 'onSortStart'): JQuery;
-    /**
-    * Notifies Select2 that a drag and drop sorting operation has finished
-    */
-    select2(method: 'onSortEnd'): JQuery;
-
-    select2(method: string): any;
-    select2(method: string, value: any, trigger?: boolean): any;
-    select2(options: Select2Options): JQuery;
-}
+// Type definitions for Select2 4.0.1
+// Project: http://ivaynberg.github.com/select2/
+// Definitions by: Boris Yankov <https://github.com/borisyankov/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+
+/// <reference path="../jquery/jquery.d.ts"/>
+
+interface Select2QueryOptions {
+    term?: string;
+    page?: number;
+    context?: any;
+    callback?: (result: { results: any; more?: boolean; context?: any; }) => void;
+}
+
+interface AjaxFunction {
+    (settings: JQueryAjaxSettings): JQueryXHR;
+    (url: string, settings?: JQueryAjaxSettings): JQueryXHR;
+}
+
+interface Select2AjaxOptions {
+    transport?: AjaxFunction;
+    /**
+    * Url to make request to, Can be string or a function returning a string.
+    */
+    url?: any;
+    dataType?: string;
+    quietMillis?: number;
+    cache?: boolean;
+    data?: (term: string, page: number, context: any) => any;
+    results?: (term: any, page: number, context: any) => any;
+}
+
+interface IdTextPair {
+    id: any;
+    text: string;
+}
+
+interface Select2Options {
+    width?: string;
+    dropdownAutoWidth?: boolean;
+    minimumInputLength?: number;
+    minimumResultsForSearch?: number;
+    maximumSelectionSize?: number;
+    placeholder?: string;
+    separator?: string;
+    allowClear?: boolean;
+    multiple?: boolean;
+    closeOnSelect?: boolean;
+    openOnEnter?: boolean;
+    id?: (object: any) => string;
+    matcher?: (term: string, text: string, option: any) => boolean;
+    formatSelection?: (object: any, container: JQuery, escapeMarkup:(markup: string) => string) => string;
+    formatResult?: (object: any, container: JQuery, query: any, escapeMarkup: (markup: string) => string) => string;
+    formatResultCssClass?: (object: any) => string;
+    formatNoMatches?: (term: string) => string;
+    formatSearching?: () => string;
+    formatInputTooShort?: (term: string, minLength: number) => string;
+    formatSelectionTooBig?: (maxSize: number) => string;
+    formatLoadMore?: (pageNumber: number) => string;
+    createSearchChoice?: (term: string, data: any) => any;
+    initSelection?: (element: JQuery, callback: (data: any) => void ) => void;
+    tokenizer?: (input: string, selection: any[], selectCallback: () => void , options: Select2Options) => string;
+    tokenSeparators?: string[];
+    query?: (options: Select2QueryOptions) => void;
+    ajax?: Select2AjaxOptions;
+    data?: any;
+    tags?: any;
+    containerCss?: any;
+    containerCssClass?: any;
+    dropdownCss?: any;
+    dropdownCssClass?: any;
+    escapeMarkup?: (markup: string) => string;
+    theme?: string;
+    /**
+    * Template can return both plain string that will be HTML escaped and a jquery object that can render HTML
+    */
+    templateSelection?: (object: Select2SelectionObject) => any;
+    templateResult?: (object: Select2SelectionObject) => any;
+	language?: string;
+}
+
+interface Select2JQueryEventObject extends JQueryEventObject {
+    val: any;
+    added: any;
+    removed: any;
+    choice: {
+        id: any;
+        text: string;
+    };
+}
+
+interface Select2SelectionObject {
+	loading: boolean,
+    disabled: boolean,
+    element: HTMLOptionElement,
+    id: string,
+    selected: boolean,
+    text: string,
+    title: string,
+}
+
+interface JQuery {
+    off(events?: "change", selector?: any, handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+
+    on(events: "change", selector?: string, data?: any, handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "change", selector?: string, handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "change", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-opening", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-open", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-close", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-highlight", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-selecting", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-removing", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-removed", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-loaded", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-focus", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-blur", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-opening", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-open", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-close", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-highlight", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-selecting", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-removing", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-removed", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-loaded", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-focus", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+    on(events: "select2-blur", handler?: (eventObject: Select2JQueryEventObject) => any): JQuery;
+
+    select2(): JQuery;
+    select2(it: IdTextPair): JQuery;
+
+    /**
+    * Get the id value of the current selection
+    */
+    select2(method: 'val'): any;
+    /**
+    * Set the id value of the current selection
+    * @params value Value to set the id to
+    * @params triggerChange Should a change event be triggered
+    */
+    select2(method: 'val', value: any, triggerChange?: boolean): any;
+    /**
+    * Get the data object of the current selection
+    */
+    select2(method: 'data'): any;
+    /**
+    * Set the data of the current selection
+    * @params value Object to set the data to
+    * @params triggerChange Should a change event be triggered
+    */
+    select2(method: 'data', value: any, triggerChange?: boolean): any;
+    /**
+    * Reverts changes to DOM done by Select2. Any selection done via Select2 will be preserved.
+    */
+    select2(method: 'destroy'): JQuery;
+    /**
+    * Opens the dropdown
+    */
+    select2(method: 'open'): JQuery;
+    /**
+    * Closes the dropdown
+    */
+    select2(method: 'close'): JQuery;
+    /**
+    * Enables or disables Select2 and its underlying form component
+    * @param value True if it should be enabled false if it should be disabled
+    */
+    select2(method: 'enable', value: boolean): JQuery;
+    /**
+    * Toggles readonly mode on Select2 and its underlying form component
+    * @param value True if it should be readonly false if it should be read write
+    */
+    select2(method: 'readonly', value: boolean): JQuery;
+    /**
+    * Retrieves the main container element that wraps all of DOM added by Select2
+    */
+    select2(method: 'container'): JQuery;
+    /**
+    * Notifies Select2 that a drag and drop sorting operation has started
+    */
+    select2(method: 'onSortStart'): JQuery;
+    /**
+    * Notifies Select2 that a drag and drop sorting operation has finished
+    */
+    select2(method: 'onSortEnd'): JQuery;
+
+    select2(method: string): any;
+    select2(method: string, value: any, trigger?: boolean): any;
+    select2(options: Select2Options): JQuery;
+}