diff --git a/tests/jquery.simulate.js b/tests/jquery.simulate.js
index a37302c46..a8740e6b8 100644
--- a/tests/jquery.simulate.js
+++ b/tests/jquery.simulate.js
@@ -45,7 +45,7 @@ $.extend( $.simulate.prototype, {
 		}
 	},
 	mouseEvent: function( type, options ) {
-		var evt;
+		var evt, eventDoc, doc, body;
 		var e = $.extend({
 			bubbles: true,
 			cancelable: (type !== "mousemove"),
@@ -71,6 +71,30 @@ $.extend( $.simulate.prototype, {
 				e.screenX, e.screenY, e.clientX, e.clientY,
 				e.ctrlKey, e.altKey, e.shiftKey, e.metaKey,
 				e.button, e.relatedTarget || document.body.parentNode );
+			
+			// IE 9+ creates events with pageX and pageY set to 0.
+			// Trying to modify the properties throws an error,
+			// so we define getters to return the correct values.
+			if ( evt.pageX === 0 && evt.pageY === 0 && Object.defineProperty ) {
+				eventDoc = evt.relatedTarget.ownerDocument || document;
+				doc = eventDoc.documentElement;
+				body = eventDoc.body;
+
+				Object.defineProperty( evt, "pageX", {
+					get: function() {
+						return e.clientX +
+							( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) -
+							( doc && doc.clientLeft || body && body.clientLeft || 0 );
+					}
+				});
+				Object.defineProperty( evt, "pageY", {
+					get: function() {
+						return e.clientY +
+							( doc && doc.scrollTop || body && body.scrollTop || 0 ) -
+							( doc && doc.clientTop || body && body.clientTop || 0 );
+					}
+				});
+			}
 		} else if ( document.createEventObject ) {
 			evt = document.createEventObject();
 			$.extend( evt, e );
diff --git a/tests/unit/menu/menu_defaults.js b/tests/unit/menu/menu_defaults.js
index 3d7ec297f..bf41fb999 100644
--- a/tests/unit/menu/menu_defaults.js
+++ b/tests/unit/menu/menu_defaults.js
@@ -1,12 +1,11 @@
 commonWidgetTests( "menu", {
 	defaults: {
 		disabled: false,
+		menus: "ul",
 		position: {
 			my: "left top",
 			at: "right top"
 		},
-		menus: "ul",
-		trigger: null,
 
 		// callbacks
 		create: null
diff --git a/tests/unit/tabs/tabs_events.js b/tests/unit/tabs/tabs_events.js
index f5cde180b..333578907 100644
--- a/tests/unit/tabs/tabs_events.js
+++ b/tests/unit/tabs/tabs_events.js
@@ -2,6 +2,45 @@
 
 module( "tabs: events" );
 
+test( "create", function() {
+	expect( 10 );
+
+	var element = $( "#tabs1" ),
+		tabs = element.find( "ul a" ),
+		panels = element.children( "div" );
+
+	element.tabs({
+		create: function( event, ui ) {
+			equals( ui.tab.size(), 1, "tab size" );
+			strictEqual( ui.tab[ 0 ], tabs[ 0 ], "tab" );
+			equals( ui.panel.size(), 1, "panel size" );
+			strictEqual( ui.panel[ 0 ], panels[ 0 ], "panel" );
+		}
+	});
+	element.tabs( "destroy" );
+
+	element.tabs({
+		active: 2,
+		create: function( event, ui ) {
+			equals( ui.tab.size(), 1, "tab size" );
+			strictEqual( ui.tab[ 0 ], tabs[ 2 ], "tab" );
+			equals( ui.panel.size(), 1, "panel size" );
+			strictEqual( ui.panel[ 0 ], panels[ 2 ], "panel" );
+		}
+	});
+	element.tabs( "destroy" );
+
+	element.tabs({
+		active: false,
+		collapsible: true,
+		create: function( event, ui ) {
+			equals( ui.tab.size(), 0, "tab size" );
+			equals( ui.panel.size(), 0, "panel size" );
+		}
+	});
+	element.tabs( "destroy" );
+});
+
 test( "beforeActivate", function() {
 	expect( 38 );
 
diff --git a/tests/unit/widget/widget_core.js b/tests/unit/widget/widget_core.js
index 2e55ad703..df83abe91 100644
--- a/tests/unit/widget/widget_core.js
+++ b/tests/unit/widget/widget_core.js
@@ -261,6 +261,21 @@ test( "._getCreateOptions()", function() {
 	$( "<div>" ).testWidget({ option2: "value2" });
 });
 
+test( "._getCreateEventData()", function() {
+	expect( 1 );
+	var data = { foo: "bar" };
+	$.widget( "ui.testWidget", {
+		_getCreateEventData: function() {
+			return data;
+		}
+	});
+	$( "<div>" ).testWidget({
+		create: function( event, ui ) {
+			strictEqual( ui, data, "event data" );
+		}
+	});
+});
+
 test( "re-init", function() {
 	var div = $( "<div>" ),
 		actions = [];
diff --git a/ui/i18n/jquery.ui.datepicker-ko.js b/ui/i18n/jquery.ui.datepicker-ko.js
index 5b3531652..04112424d 100644
--- a/ui/i18n/jquery.ui.datepicker-ko.js
+++ b/ui/i18n/jquery.ui.datepicker-ko.js
@@ -1,23 +1,23 @@
 /* Korean initialisation for the jQuery calendar extension. */
-/* Written by DaeKwon Kang (ncrash.dk@gmail.com). */
+/* Written by DaeKwon Kang (ncrash.dk@gmail.com), Edited by Genie. */
 jQuery(function($){
 	$.datepicker.regional['ko'] = {
 		closeText: '닫기',
 		prevText: '이전달',
 		nextText: '다음달',
 		currentText: '오늘',
-		monthNames: ['1월(JAN)','2월(FEB)','3월(MAR)','4월(APR)','5월(MAY)','6월(JUN)',
-		'7월(JUL)','8월(AUG)','9월(SEP)','10월(OCT)','11월(NOV)','12월(DEC)'],
-		monthNamesShort: ['1월(JAN)','2월(FEB)','3월(MAR)','4월(APR)','5월(MAY)','6월(JUN)',
-		'7월(JUL)','8월(AUG)','9월(SEP)','10월(OCT)','11월(NOV)','12월(DEC)'],
-		dayNames: ['일','월','화','수','목','금','토'],
+		monthNames: ['1월','2월','3월','4월','5월','6월',
+		'7월','8월','9월','10월','11월','12월'],
+		monthNamesShort: ['1월','2월','3월','4월','5월','6월',
+		'7월','8월','9월','10월','11월','12월'],
+		dayNames: ['일요일','월요일','화요일','수요일','목요일','금요일','토요일'],
 		dayNamesShort: ['일','월','화','수','목','금','토'],
 		dayNamesMin: ['일','월','화','수','목','금','토'],
 		weekHeader: 'Wk',
 		dateFormat: 'yy-mm-dd',
 		firstDay: 0,
 		isRTL: false,
-		showMonthAfterYear: false,
+		showMonthAfterYear: true,
 		yearSuffix: '년'};
 	$.datepicker.setDefaults($.datepicker.regional['ko']);
 });
\ No newline at end of file
diff --git a/ui/i18n/jquery.ui.datepicker-mk.js b/ui/i18n/jquery.ui.datepicker-mk.js
index 554ad20ba..1e602427a 100644
--- a/ui/i18n/jquery.ui.datepicker-mk.js
+++ b/ui/i18n/jquery.ui.datepicker-mk.js
@@ -14,7 +14,7 @@ jQuery(function($){
 		dayNamesShort: ['Нед','Пон','Вто','Сре','Чет','Пет','Саб'],
 		dayNamesMin: ['Не','По','Вт','Ср','Че','Пе','Са'],
 		weekHeader: 'Сед',
-		dateFormat: 'dd/mm/yy',
+		dateFormat: 'dd.mm.yy',
 		firstDay: 1,
 		isRTL: false,
 		showMonthAfterYear: false,
diff --git a/ui/i18n/jquery.ui.datepicker-nl-BE.js b/ui/i18n/jquery.ui.datepicker-nl-BE.js
index 56207cb04..7b3cdf425 100644
--- a/ui/i18n/jquery.ui.datepicker-nl-BE.js
+++ b/ui/i18n/jquery.ui.datepicker-nl-BE.js
@@ -1,4 +1,4 @@
-/* Dutch (Belgium) initialisation for the jQuery UI date picker plugin. */
+/* Dutch (Belgium) initialisation for the jQuery UI date picker plugin. */
 /* David De Sloovere @DavidDeSloovere */
 jQuery(function($){
 	$.datepicker.regional['nl-BE'] = {
@@ -20,4 +20,4 @@ jQuery(function($){
 		showMonthAfterYear: false,
 		yearSuffix: ''};
 	$.datepicker.setDefaults($.datepicker.regional['nl-BE']);
-});
\ No newline at end of file
+});
diff --git a/ui/jquery.ui.button.js b/ui/jquery.ui.button.js
index 18a950563..1c3cf2c64 100644
--- a/ui/jquery.ui.button.js
+++ b/ui/jquery.ui.button.js
@@ -58,7 +58,9 @@ $.widget( "ui.button", {
 			.bind( "reset.button", formResetHandler );
 
 		if ( typeof this.options.disabled !== "boolean" ) {
-			this.options.disabled = this.element.prop( "disabled" );
+			this.options.disabled = !!this.element.prop( "disabled" );
+		} else {
+			this.element.prop( "disabled", this.options.disabled );
 		}
 
 		this._determineButtonType();
@@ -74,10 +76,6 @@ $.widget( "ui.button", {
 			options.label = this.buttonElement.html();
 		}
 
-		if ( this.element.is( ":disabled" ) ) {
-			options.disabled = true;
-		}
-
 		this.buttonElement
 			.addClass( baseClasses )
 			.attr( "role", "button" )
diff --git a/ui/jquery.ui.core.js b/ui/jquery.ui.core.js
index f0cf89ba7..d777d6d49 100644
--- a/ui/jquery.ui.core.js
+++ b/ui/jquery.ui.core.js
@@ -223,6 +223,11 @@ $(function() {
 	var body = document.body,
 		div = body.appendChild( div = document.createElement( "div" ) );
 
+	// access offsetHeight before setting the style to prevent a layout bug
+	// in IE 9 which causes the elemnt to continue to take up space even
+	// after it is removed from the DOM (#8026)
+	div.offsetHeight;
+
 	$.extend( div.style, {
 		minHeight: "100px",
 		height: "auto",
diff --git a/ui/jquery.ui.datepicker.js b/ui/jquery.ui.datepicker.js
index 45ddf8678..5915d4027 100644
--- a/ui/jquery.ui.datepicker.js
+++ b/ui/jquery.ui.datepicker.js
@@ -233,7 +233,10 @@ $.extend(Datepicker.prototype, {
 			inst.trigger.click(function() {
 				if ($.datepicker._datepickerShowing && $.datepicker._lastInput == input[0])
 					$.datepicker._hideDatepicker();
-				else
+				else if ($.datepicker._datepickerShowing && $.datepicker._lastInput != input[0]) {
+					$.datepicker._hideDatepicker(); 
+					$.datepicker._showDatepicker(input[0]);
+				} else
 					$.datepicker._showDatepicker(input[0]);
 				return false;
 			});
diff --git a/ui/jquery.ui.position.js b/ui/jquery.ui.position.js
index 9a520f845..00976bf79 100644
--- a/ui/jquery.ui.position.js
+++ b/ui/jquery.ui.position.js
@@ -37,7 +37,7 @@ $.position = {
 
 		div.remove();
 
-		return w1 - w2; 
+		return w1 - w2;
 	},
 	getScrollInfo: function(within) {
 		var notWindow = within[0] !== window,
@@ -401,12 +401,12 @@ $.ui.position = {
 		}
 	},
 	flipfit: {
-		left: function() { 
-			$.ui.position.flip.left.apply( this, arguments ); 
+		left: function() {
+			$.ui.position.flip.left.apply( this, arguments );
 			$.ui.position.fit.left.apply( this, arguments );
 		},
-		top: function() { 
-			$.ui.position.flip.top.apply( this, arguments ); 
+		top: function() {
+			$.ui.position.flip.top.apply( this, arguments );
 			$.ui.position.fit.top.apply( this, arguments );
 		}
 	}
@@ -415,7 +415,7 @@ $.ui.position = {
 // fraction support test
 (function () {
 	var testElement, testElementParent, testElementStyle, offsetLeft, i
-		body = document.getElementsByTagName( "body" )[ 0 ], 
+		body = document.getElementsByTagName( "body" )[ 0 ],
 		div = document.createElement( "div" );
 
 	//Create a "fake body" for testing based on method used in jQuery.support
@@ -429,7 +429,7 @@ $.ui.position = {
 		background: "none"
 	};
 	if ( body ) {
-		jQuery.extend( testElementStyle, {
+		$.extend( testElementStyle, {
 			position: "absolute",
 			left: "-1000px",
 			top: "-1000px"
diff --git a/ui/jquery.ui.sortable.js b/ui/jquery.ui.sortable.js
index 62d227a3d..600569451 100644
--- a/ui/jquery.ui.sortable.js
+++ b/ui/jquery.ui.sortable.js
@@ -17,6 +17,7 @@
 $.widget("ui.sortable", $.ui.mouse, {
 	version: "@VERSION",
 	widgetEventPrefix: "sort",
+	ready: false,
 	options: {
 		appendTo: "parent",
 		axis: false,
@@ -58,6 +59,9 @@ $.widget("ui.sortable", $.ui.mouse, {
 
 		//Initialize mouse events for interaction
 		this._mouseInit();
+		
+		//We're ready to go
+		this.ready = true
 
 	},
 
@@ -571,7 +575,7 @@ $.widget("ui.sortable", $.ui.mouse, {
 		var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]];
 		var connectWith = this._connectWith();
 
-		if(connectWith) {
+		if(connectWith && this.ready) { //Shouldn't be run the first time through due to massive slow-down
 			for (var i = connectWith.length - 1; i >= 0; i--){
 				var cur = $(connectWith[i]);
 				for (var j = cur.length - 1; j >= 0; j--){
diff --git a/ui/jquery.ui.tabs.js b/ui/jquery.ui.tabs.js
index 5c9fc1326..7a701405c 100644
--- a/ui/jquery.ui.tabs.js
+++ b/ui/jquery.ui.tabs.js
@@ -13,23 +13,20 @@
  */
 (function( $, undefined ) {
 
-var tabId = 0;
+var tabId = 0,
+	rhash = /#.*$/;
+	
 function getNextTabId() {
 	return ++tabId;
 }
 
-var isLocal = (function() {
-	var rhash = /#.*$/,
-		currentPage = location.href.replace( rhash, "" );
-
-	return function( anchor ) {
-		// clone the node to work around IE 6 not normalizing the href property
-		// if it's manually set, i.e., a.href = "#foo" kills the normalization
-		anchor = anchor.cloneNode( false );
-		return anchor.hash.length > 1 &&
-			anchor.href.replace( rhash, "" ) === currentPage;
-	};
-})();
+var isLocal = function( anchor ) {
+	// clone the node to work around IE 6 not normalizing the href property
+	// if it's manually set, i.e., a.href = "#foo" kills the normalization
+	anchor = anchor.cloneNode( false );
+	return anchor.hash.length > 1 && 
+			anchor.href.replace( rhash, "" ) === location.href.replace( rhash, "" );
+};
 
 $.widget( "ui.tabs", {
 	version: "@VERSION",
@@ -123,6 +120,13 @@ $.widget( "ui.tabs", {
 		}
 	},
 
+	_getCreateEventData: function() {
+		return {
+			tab: this.active,
+			panel: !this.active.length ? $() : this._getPanelForTab( this.active )
+		};
+	},
+
 	_setOption: function( key, value ) {
 		if ( key == "active" ) {
 			// _activate() will handle invalid values and update this.options
@@ -212,7 +216,7 @@ $.widget( "ui.tabs", {
 	_processTabs: function() {
 		var self = this;
 
-		this.list = this.element.find( "ol,ul" ).eq( 0 );
+		this.list = this._getList();
 		this.lis = $( " > li:has(a[href])", this.list );
 		this.anchors = this.lis.map(function() {
 			return $( "a", this )[ 0 ];
@@ -244,6 +248,11 @@ $.widget( "ui.tabs", {
 		});
 	},
 
+	// allow overriding how to find the list for rare usage scenarios (#7715)
+	_getList: function() {
+		return this.element.find( "ol,ul" ).eq( 0 );
+	},
+
 	_createPanel: function( id ) {
 		return $( "<div></div>" )
 					.attr( "id", id )
diff --git a/ui/jquery.ui.widget.js b/ui/jquery.ui.widget.js
index 5c8560bfd..ad03e6f44 100644
--- a/ui/jquery.ui.widget.js
+++ b/ui/jquery.ui.widget.js
@@ -204,10 +204,11 @@ $.Widget.prototype = {
 		}
 
 		this._create();
-		this._trigger( "create" );
+		this._trigger( "create", null, this._getCreateEventData() );
 		this._init();
 	},
 	_getCreateOptions: $.noop,
+	_getCreateEventData: $.noop,
 	_create: $.noop,
 	_init: $.noop,