diff --git a/src/js/_enqueues/admin/auth-app.js b/src/js/_enqueues/admin/auth-app.js
index f358dd7e64..99478d1824 100644
--- a/src/js/_enqueues/admin/auth-app.js
+++ b/src/js/_enqueues/admin/auth-app.js
@@ -15,7 +15,7 @@
 			rejectUrl: authApp.reject
 		};
 
-	$approveBtn.click( function( e ) {
+	$approveBtn.on( 'click', function( e ) {
 		var name = $appNameField.val(),
 			appId = $( 'input[name="app_id"]', $form ).val();
 
@@ -26,7 +26,7 @@
 		}
 
 		if ( 0 === name.length ) {
-			$appNameField.focus();
+			$appNameField.trigger( 'focus' );
 			return;
 		}
 
@@ -102,7 +102,7 @@
 				$( 'input', $notice ).val( response.password );
 
 				$form.replaceWith( $notice );
-				$notice.focus();
+				$notice.trigger( 'focus' );
 			}
 		} ).fail( function( jqXHR, textStatus, errorThrown ) {
 			var errorMessage = errorThrown,
@@ -140,7 +140,7 @@
 		} );
 	} );
 
-	$rejectBtn.click( function( e ) {
+	$rejectBtn.on( 'click', function( e ) {
 		e.preventDefault();
 
 		/**
diff --git a/src/js/_enqueues/admin/common.js b/src/js/_enqueues/admin/common.js
index f0807f989e..41d2f94f4a 100644
--- a/src/js/_enqueues/admin/common.js
+++ b/src/js/_enqueues/admin/common.js
@@ -840,7 +840,7 @@ $document.ready( function() {
 	 * @return {void}
 	 */
 	$adminmenu.on('click.wp-submenu-head', '.wp-submenu-head', function(e){
-		$(e.target).parent().siblings('a').get(0).click();
+		$(e.target).parent().siblings('a').get(0).trigger( 'click' );
 	});
 
 	/**
diff --git a/src/js/_enqueues/admin/custom-background.js b/src/js/_enqueues/admin/custom-background.js
index 7f57d8a9b4..8204fdfeca 100644
--- a/src/js/_enqueues/admin/custom-background.js
+++ b/src/js/_enqueues/admin/custom-background.js
@@ -39,7 +39,7 @@
 		 *
 		 * @return {void}
 		 */
-		$( 'select[name="background-size"]' ).change( function() {
+		$( 'select[name="background-size"]' ).on( 'change', function() {
 			bgImage.css( 'background-size', $( this ).val() );
 		});
 
@@ -50,7 +50,7 @@
 		 *
 		 * @return {void}
 		 */
-		$( 'input[name="background-position"]' ).change( function() {
+		$( 'input[name="background-position"]' ).on( 'change', function() {
 			bgImage.css( 'background-position', $( this ).val() );
 		});
 
@@ -61,7 +61,7 @@
 		 *
 		 * @return {void}
 		 */
-		$( 'input[name="background-repeat"]' ).change( function() {
+		$( 'input[name="background-repeat"]' ).on( 'change',  function() {
 			bgImage.css( 'background-repeat', $( this ).is( ':checked' ) ? 'repeat' : 'no-repeat' );
 		});
 
@@ -72,7 +72,7 @@
 		 *
 		 * @return {void}
 		 */
-		$( 'input[name="background-attachment"]' ).change( function() {
+		$( 'input[name="background-attachment"]' ).on( 'change', function() {
 			bgImage.css( 'background-attachment', $( this ).is( ':checked' ) ? 'scroll' : 'fixed' );
 		});
 
@@ -83,7 +83,7 @@
 		 *
 		 * @return {void}
 		 */
-		$('#choose-from-library-link').click( function( event ) {
+		$('#choose-from-library-link').on( 'click', function( event ) {
 			var $el = $(this);
 
 			event.preventDefault();
diff --git a/src/js/_enqueues/admin/custom-header.js b/src/js/_enqueues/admin/custom-header.js
index b1414a439e..367756ef87 100644
--- a/src/js/_enqueues/admin/custom-header.js
+++ b/src/js/_enqueues/admin/custom-header.js
@@ -35,7 +35,7 @@
 		 *
 		 * @return {void}
 		 */
-		$('#choose-from-library-link').click( function( event ) {
+		$('#choose-from-library-link').on( 'click', function( event ) {
 			var $el = $(this);
 			event.preventDefault();
 
diff --git a/src/js/_enqueues/admin/edit-comments.js b/src/js/_enqueues/admin/edit-comments.js
index 6c9c2520b9..31d0c551a7 100644
--- a/src/js/_enqueues/admin/edit-comments.js
+++ b/src/js/_enqueues/admin/edit-comments.js
@@ -850,7 +850,7 @@ window.commentReply = {
 	 */
 	toggle : function(el) {
 		if ( 'none' !== $( el ).css( 'display' ) && ( $( '#replyrow' ).parent().is('#com-reply') || window.confirm( __( 'Are you sure you want to edit this comment?\nThe changes you made will be lost.' ) ) ) ) {
-			$( el ).find( 'button.vim-q' ).click();
+			$( el ).find( 'button.vim-q' ).trigger( 'click' );
 		}
 	},
 
@@ -1298,7 +1298,7 @@ $(document).ready(function(){
 			return function() {
 				var scope = $('select[name="action"]');
 				$('option[value="' + value + '"]', scope).prop('selected', true);
-				$('#doaction').click();
+				$('#doaction').trigger( 'click' );
 			};
 		};
 
diff --git a/src/js/_enqueues/admin/link.js b/src/js/_enqueues/admin/link.js
index 02698e5eea..3bb7378ba8 100644
--- a/src/js/_enqueues/admin/link.js
+++ b/src/js/_enqueues/admin/link.js
@@ -8,7 +8,7 @@ jQuery(document).ready( function($) {
 
 	var newCat, noSyncChecks = false, syncChecks, catAddAfter;
 
-	$('#link_name').focus();
+	$('#link_name').trigger( 'focus' );
 	// Postboxes.
 	postboxes.add_postbox_toggles('link');
 
@@ -19,7 +19,7 @@ jQuery(document).ready( function($) {
 	 *
 	 * @return {boolean} Always returns false to prevent the default behavior.
 	 */
-	$('#category-tabs a').click(function(){
+	$('#category-tabs a').on( 'click', function(){
 		var t = $(this).attr('href');
 		$(this).parent().addClass('tabs').siblings('li').removeClass('tabs');
 		$('.tabs-panel').hide();
@@ -31,7 +31,7 @@ jQuery(document).ready( function($) {
 		return false;
 	});
 	if ( getUserSetting('cats') )
-		$('#category-tabs a[href="#categories-pop"]').click();
+		$('#category-tabs a[href="#categories-pop"]').trigger( 'click' );
 
 	// Ajax Cat.
 	newCat = $('#newcat').one( 'focus', function() { $(this).val( '' ).removeClass( 'form-input-tip' ); } );
@@ -41,7 +41,7 @@ jQuery(document).ready( function($) {
 	 *
 	 * @return {void}
 	 */
-	$('#link-category-add-submit').click( function() { newCat.focus(); } );
+	$('#link-category-add-submit').on( 'click', function() { newCat.focus(); } );
 
 	/**
 	 * Synchronize category checkboxes.
@@ -82,7 +82,7 @@ jQuery(document).ready( function($) {
 			var t = $($(this).text());
 			t.find( 'label' ).each( function() {
 				var th = $(this), val = th.find('input').val(), id = th.find('input')[0].id, name = $.trim( th.text() ), o;
-				$('#' + id).change( syncChecks );
+				$('#' + id).on( 'change', syncChecks );
 				o = $( '<option value="' +  parseInt( val, 10 ) + '"></option>' ).text( name );
 			} );
 		} );
@@ -108,13 +108,13 @@ jQuery(document).ready( function($) {
 	} );
 
 	// All categories is the default tab, so we delete the user setting.
-	$('a[href="#categories-all"]').click(function(){deleteUserSetting('cats');});
+	$('a[href="#categories-all"]').on( 'click', function(){deleteUserSetting('cats');});
 
 	// Set a preference for the popular categories to cookies.
-	$('a[href="#categories-pop"]').click(function(){setUserSetting('cats','pop');});
+	$('a[href="#categories-pop"]').on( 'click', function(){setUserSetting('cats','pop');});
 
 	if ( 'pop' == getUserSetting('cats') )
-		$('a[href="#categories-pop"]').click();
+		$('a[href="#categories-pop"]').trigger( 'click' );
 
 	/**
 	 * Adds event handler that shows the interface controls to add a new category.
@@ -125,12 +125,12 @@ jQuery(document).ready( function($) {
 	 * @return {boolean} Always returns false to prevent regular link
 	 *                   functionality.
 	 */
-	$('#category-add-toggle').click( function() {
+	$('#category-add-toggle').on( 'click', function() {
 		$(this).parents('div:first').toggleClass( 'wp-hidden-children' );
-		$('#category-tabs a[href="#categories-all"]').click();
-		$('#newcategory').focus();
+		$('#category-tabs a[href="#categories-all"]').trigger( 'click' );
+		$('#newcategory').trigger( 'focus' );
 		return false;
 	} );
 
-	$('.categorychecklist :checkbox').change( syncChecks ).filter( ':checked' ).change();
+	$('.categorychecklist :checkbox').on( 'change', syncChecks ).filter( ':checked' ).trigger( 'change' );
 });
diff --git a/src/js/_enqueues/admin/media.js b/src/js/_enqueues/admin/media.js
index 97310d2a63..fa11305117 100644
--- a/src/js/_enqueues/admin/media.js
+++ b/src/js/_enqueues/admin/media.js
@@ -46,7 +46,7 @@
 			$( '#find-posts' ).show();
 
 			// Close the dialog when the escape key is pressed.
-			$('#find-posts-input').focus().keyup( function( event ){
+			$('#find-posts-input').trigger( 'focus' ).on( 'keyup', function( event ){
 				if ( event.which == 27 ) {
 					findPosts.close();
 				}
diff --git a/src/js/_enqueues/admin/plugin-install.js b/src/js/_enqueues/admin/plugin-install.js
index 7ff803519a..7cd6fd5bad 100644
--- a/src/js/_enqueues/admin/plugin-install.js
+++ b/src/js/_enqueues/admin/plugin-install.js
@@ -75,7 +75,7 @@ jQuery( document ).ready( function( $ ) {
 		.on( 'thickbox:removed', function() {
 			// Set focus back to the element that opened the modal dialog.
 			// Note: IE 8 would need this wrapped in a fake setTimeout `0`.
-			$focusedBefore.focus();
+			$focusedBefore.trigger( 'focus' );
 		});
 
 	function iframeLoaded() {
@@ -88,7 +88,7 @@ jQuery( document ).ready( function( $ ) {
 		handleTabbables();
 
 		// Set initial focus on the "Close" button.
-		$firstTabbable.focus();
+		$firstTabbable.trigger( 'focus' );
 
 		/*
 		 * When the "Install" button is disabled (e.g. the Plugin is already installed)
@@ -141,10 +141,10 @@ jQuery( document ).ready( function( $ ) {
 
 		if ( $lastTabbable[0] === event.target && ! event.shiftKey ) {
 			event.preventDefault();
-			$firstTabbable.focus();
+			$firstTabbable.trigger( 'focus' );
 		} else if ( $firstTabbable[0] === event.target && event.shiftKey ) {
 			event.preventDefault();
-			$lastTabbable.focus();
+			$lastTabbable.trigger( 'focus' );
 		}
 	}
 
diff --git a/src/js/_enqueues/admin/post.js b/src/js/_enqueues/admin/post.js
index c2feb8a174..a83f834d78 100644
--- a/src/js/_enqueues/admin/post.js
+++ b/src/js/_enqueues/admin/post.js
@@ -68,7 +68,7 @@ window.wp = window.wp || {};
 						$('#the-comment-list').append( r.responses[0].data );
 
 						theList = theExtraList = null;
-						$( 'a[className*=\':\']' ).unbind();
+						$( 'a[className*=\':\']' ).off();
 
 						// If the offset is over the total number of comments we cannot fetch any more, so hide the button.
 						if ( commentsBox.st > commentsBox.total )
@@ -414,7 +414,7 @@ jQuery(document).ready( function($) {
 		}
 
 		$previewField.val('dopreview');
-		$form.attr( 'target', target ).submit().attr( 'target', '' );
+		$form.attr( 'target', target ).trigger( 'submit' ).attr( 'target', '' );
 
 		// Workaround for WebKit bug preventing a form submitting twice to the same action.
 		// https://bugs.webkit.org/show_bug.cgi?id=28633
@@ -448,7 +448,7 @@ jQuery(document).ready( function($) {
 
 	// Auto save new posts after a title is typed.
 	if ( $( '#auto_draft' ).val() ) {
-		$( '#title' ).blur( function() {
+		$( '#title' ).on( 'blur', function() {
 			var cancel;
 
 			if ( ! this.value || $('#edit-slug-box > *').length ) {
@@ -592,7 +592,7 @@ jQuery(document).ready( function($) {
 		});
 
 		if ( getUserSetting( settingName ) )
-			$('a[href="#' + taxonomy + '-pop"]', '#' + taxonomy + '-tabs').click();
+			$('a[href="#' + taxonomy + '-pop"]', '#' + taxonomy + '-tabs').trigger( 'click' );
 
 		// Add category button controls.
 		$('#new' + taxonomy).one( 'focus', function() {
@@ -600,10 +600,10 @@ jQuery(document).ready( function($) {
 		});
 
 		// On [Enter] submit the taxonomy.
-		$('#new' + taxonomy).keypress( function(event){
+		$('#new' + taxonomy).on( 'keypress', function(event){
 			if( 13 === event.keyCode ) {
 				event.preventDefault();
-				$('#' + taxonomy + '-add-submit').click();
+				$('#' + taxonomy + '-add-submit').trigger( 'click' );
 			}
 		});
 
@@ -1001,7 +1001,7 @@ jQuery(document).ready( function($) {
 			var new_slug = $el.children( 'input' ).val();
 
 			if ( new_slug == $('#editable-post-name-full').text() ) {
-				buttons.children('.cancel').click();
+				buttons.children('.cancel').trigger( 'click' );
 				return;
 			}
 
@@ -1054,11 +1054,11 @@ jQuery(document).ready( function($) {
 			// On [Enter], just save the new slug, don't save the post.
 			if ( 13 === key ) {
 				e.preventDefault();
-				buttons.children( '.save' ).click();
+				buttons.children( '.save' ).trigger( 'click' );
 			}
 			// On [Esc] cancel the editing.
 			if ( 27 === key ) {
-				buttons.children( '.cancel' ).click();
+				buttons.children( '.cancel' ).trigger( 'click' );
 			}
 		} ).on( 'keyup', function() {
 			real_slug.val( this.value );
@@ -1177,7 +1177,7 @@ jQuery(document).ready( function($) {
 			} else {
 				mce = false;
 				offset = $textarea.height() - event.pageY;
-				$textarea.blur();
+				$textarea.trigger( 'blur' );
 			}
 
 			$document.on( 'mousemove.wp-editor-resize', dragging )
@@ -1261,7 +1261,7 @@ jQuery(document).ready( function($) {
 		// Clear the selection and move focus back to the trigger.
 		event.clearSelection();
 		// Handle ClipboardJS focus bug, see https://github.com/zenorocha/clipboard.js/issues/680
-		triggerElement.focus();
+		triggerElement.trigger( 'focus' );
 
 		// Show success visual feedback.
 		clearTimeout( copyAttachmentURLSuccessTimeout );
diff --git a/src/js/_enqueues/admin/postbox.js b/src/js/_enqueues/admin/postbox.js
index c4958c126a..4f521acd93 100644
--- a/src/js/_enqueues/admin/postbox.js
+++ b/src/js/_enqueues/admin/postbox.js
@@ -127,7 +127,7 @@
 				}
 
 				postbox.prevAll( '.postbox:visible' ).eq( 0 ).before( postbox );
-				button.focus();
+				button.trigger( 'focus' );
 				postboxes.updateOrderButtonsProperties();
 				postboxes.save_order( postboxes.page );
 			}
@@ -141,7 +141,7 @@
 				}
 
 				postbox.nextAll( '.postbox:visible' ).eq( 0 ).after( postbox );
-				button.focus();
+				button.trigger( 'focus' );
 				postboxes.updateOrderButtonsProperties();
 				postboxes.save_order( postboxes.page );
 			}
diff --git a/src/js/_enqueues/admin/privacy-tools.js b/src/js/_enqueues/admin/privacy-tools.js
index c4565550da..331af439c9 100644
--- a/src/js/_enqueues/admin/privacy-tools.js
+++ b/src/js/_enqueues/admin/privacy-tools.js
@@ -328,7 +328,7 @@ jQuery( document ).ready( function( $ ) {
 	// Label handling to focus the create page button on Privacy settings page.
 	$( 'body.options-privacy-php label[for=create-page]' ).on( 'click', function( e ) {
 		e.preventDefault();
-		$( 'input#create-page' ).focus();
+		$( 'input#create-page' ).trigger( 'focus' );
 	} );
 
 	// Accordion handling in various new Privacy settings pages.
diff --git a/src/js/_enqueues/admin/tags-box.js b/src/js/_enqueues/admin/tags-box.js
index b4d1cec969..fbbb355861 100644
--- a/src/js/_enqueues/admin/tags-box.js
+++ b/src/js/_enqueues/admin/tags-box.js
@@ -188,7 +188,7 @@
 							 * key this will fire the `keyup` event on the input.
 							 */
 							if ( 13 === e.keyCode || 32 === e.keyCode ) {
- 								$( this ).closest( '.tagsdiv' ).find( 'input.newtag' ).focus();
+ 								$( this ).closest( '.tagsdiv' ).find( 'input.newtag' ).trigger( 'focus' );
  							}
 
 							tagBox.userAction = 'remove';
@@ -255,7 +255,7 @@
 			if ( ! a )
 				newtag.val('');
 			if ( 'undefined' == typeof( f ) )
-				newtag.focus();
+				newtag.trigger( 'focus' );
 
 			return false;
 		},
@@ -303,7 +303,7 @@
 				 *
 				 * @return {boolean} Returns false to prevent the default action.
 				 */
-				$( 'a', r ).click( function() {
+				$( 'a', r ).on( 'click', function() {
 					tagBox.userAction = 'add';
 					tagBox.flushTags( $( '#' + tax ), this );
 					return false;
@@ -368,7 +368,7 @@
 				tagBox.quickClicks( this );
 			});
 
-			$( '.tagadd', ajaxtag ).click( function() {
+			$( '.tagadd', ajaxtag ).on( 'click', function() {
 				tagBox.userAction = 'add';
 				tagBox.flushTags( $( this ).closest( '.tagsdiv' ) );
 			});
@@ -385,7 +385,7 @@
 			 *
 			 * @return {void}
 			 */
-			$( 'input.newtag', ajaxtag ).keypress( function( event ) {
+			$( 'input.newtag', ajaxtag ).on( 'keypress', function( event ) {
 				if ( 13 == event.which ) {
 					tagBox.userAction = 'add';
 					tagBox.flushTags( $( this ).closest( '.tagsdiv' ) );
@@ -404,7 +404,7 @@
 			 *
 			 * @return {void}
 			 */
-			$('#post').submit(function(){
+			$('#post').on( 'submit', function(){
 				$('div.tagsdiv').each( function() {
 					tagBox.flushTags(this, false, 1);
 				});
@@ -419,14 +419,14 @@
 			 *
 			 * @return {void}
 			 */
-			$('.tagcloud-link').click(function(){
+			$('.tagcloud-link').on( 'click', function(){
 				// On the first click, fetch the tag cloud and insert it in the DOM.
 				tagBox.get( $( this ).attr( 'id' ) );
 				// Update button state, remove previous click event and attach a new one to toggle the cloud.
 				$( this )
 					.attr( 'aria-expanded', 'true' )
-					.unbind()
-					.click( function() {
+					.off()
+					.on( 'click', function() {
 						$( this )
 							.attr( 'aria-expanded', 'false' === $( this ).attr( 'aria-expanded' ) ? 'true' : 'false' )
 							.siblings( '.the-tagcloud' ).toggle();
diff --git a/src/js/_enqueues/admin/user-profile.js b/src/js/_enqueues/admin/user-profile.js
index dfec0fdba2..06cfba2e12 100644
--- a/src/js/_enqueues/admin/user-profile.js
+++ b/src/js/_enqueues/admin/user-profile.js
@@ -408,7 +408,7 @@
 				// Repaint icons.
 				if ( typeof wp !== 'undefined' && wp.svgPainter ) {
 					try {
-						colors = $.parseJSON( $this.children( '.icon_colors' ).val() );
+						colors = JSON.parse( $this.children( '.icon_colors' ).val() );
 					} catch ( error ) {}
 
 					if ( colors ) {
diff --git a/src/js/_enqueues/admin/widgets.js b/src/js/_enqueues/admin/widgets.js
index d560811511..245b0c12b2 100644
--- a/src/js/_enqueues/admin/widgets.js
+++ b/src/js/_enqueues/admin/widgets.js
@@ -81,7 +81,7 @@ window.wpWidgets = {
 				});
 				unsavedWidgetsElements.each( function() {
 					if ( ! $( this ).hasClass( 'open' ) ) {
-						$( this ).find( '.widget-title-action:first' ).click();
+						$( this ).find( '.widget-title-action:first' ).trigger( 'click' );
 					}
 				});
 
@@ -92,7 +92,7 @@ window.wpWidgets = {
 					} else {
 						this.scrollIntoView();
 					}
-					$( this ).find( '.widget-inside :tabbable:first' ).focus();
+					$( this ).find( '.widget-inside :tabbable:first' ).trigger( 'focus' );
 				} );
 
 				event.returnValue = wp.i18n.__( 'The changes you made will be lost if you navigate away from this page.' );
diff --git a/src/js/_enqueues/deprecated/media-gallery.js b/src/js/_enqueues/deprecated/media-gallery.js
index e96222c67a..6df4c37e6a 100644
--- a/src/js/_enqueues/deprecated/media-gallery.js
+++ b/src/js/_enqueues/deprecated/media-gallery.js
@@ -10,7 +10,7 @@ jQuery(function($) {
 	/**
 	 * Adds a click event handler to the element with a 'wp-gallery' class.
 	 */
-	$( 'body' ).bind( 'click.wp-gallery', function(e) {
+	$( 'body' ).on( 'click.wp-gallery', function(e) {
 		var target = $( e.target ), id, img_size, nonceValue;
 
 		if ( target.hasClass( 'wp-set-header' ) ) {
diff --git a/src/js/_enqueues/lib/ajax-response.js b/src/js/_enqueues/lib/ajax-response.js
index ed343a6709..6b356d8a94 100644
--- a/src/js/_enqueues/lib/ajax-response.js
+++ b/src/js/_enqueues/lib/ajax-response.js
@@ -11,7 +11,7 @@ window.wpAjax = jQuery.extend( {
 		q = s.split('?'); if ( q[1] ) { s = q[1]; }
 		pp = s.split('&');
 		for ( i in pp ) {
-			if ( jQuery.isFunction(pp.hasOwnProperty) && !pp.hasOwnProperty(i) ) { continue; }
+			if ( typeof pp.hasOwnProperty === 'function' && !pp.hasOwnProperty(i) ) { continue; }
 			p = pp[i].split('=');
 			r[p[0]] = p[1];
 		}
diff --git a/src/js/_enqueues/lib/color-picker.js b/src/js/_enqueues/lib/color-picker.js
index 6f3d1ce5a5..f41f00af18 100644
--- a/src/js/_enqueues/lib/color-picker.js
+++ b/src/js/_enqueues/lib/color-picker.js
@@ -67,7 +67,7 @@
 				 * @return {void}
 				 */
 				change: function( event, ui ) {
-					if ( $.isFunction( self.options.change ) ) {
+					if ( typeof self.options.change === 'function' ) {
 						self.options.change.call( this, event, ui );
 					}
 				},
@@ -189,7 +189,7 @@
 				change: function( event, ui ) {
 					self.toggler.css( { backgroundColor: ui.color.toString() } );
 
-					if ( $.isFunction( self.options.change ) ) {
+					if ( typeof self.options.change === 'function' ) {
 						self.options.change.call( this, event, ui );
 					}
 				}
@@ -257,7 +257,7 @@
 				if ( val === '' || val === '#' ) {
 					self.toggler.css( 'backgroundColor', '' );
 					// Fire clear callback if we have one.
-					if ( $.isFunction( self.options.clear ) ) {
+					if ( typeof self.options.clear === 'function' ) {
 						self.options.clear.call( this, event );
 					}
 				}
diff --git a/src/js/_enqueues/lib/gallery.js b/src/js/_enqueues/lib/gallery.js
index dda3e33408..e1c34b5b9f 100644
--- a/src/js/_enqueues/lib/gallery.js
+++ b/src/js/_enqueues/lib/gallery.js
@@ -42,28 +42,28 @@ jQuery(document).ready(function($) {
 		});
 	};
 
-	$('#asc').click( function( e ) {
+	$('#asc').on( 'click', function( e ) {
 		e.preventDefault();
 		desc = false;
 		sortIt();
 	});
-	$('#desc').click( function( e ) {
+	$('#desc').on( 'click', function( e ) {
 		e.preventDefault();
 		desc = true;
 		sortIt();
 	});
-	$('#clear').click( function( e ) {
+	$('#clear').on( 'click', function( e ) {
 		e.preventDefault();
 		clearAll(1);
 	});
-	$('#showall').click( function( e ) {
+	$('#showall').on( 'click', function( e ) {
 		e.preventDefault();
 		$('#sort-buttons span a').toggle();
 		$('a.describe-toggle-on').hide();
 		$('a.describe-toggle-off, table.slidetoggle').show();
 		$('img.pinkynail').toggle(false);
 	});
-	$('#hideall').click( function( e ) {
+	$('#hideall').on( 'click', function( e ) {
 		e.preventDefault();
 		$('#sort-buttons span a').toggle();
 		$('a.describe-toggle-on').show();
@@ -88,7 +88,7 @@ jQuery(document).ready(function($) {
 	}
 });
 
-jQuery(window).unload( function () { window.tinymce = window.tinyMCE = window.wpgallery = null; } ); // Cleanup.
+jQuery(window).on( 'unload', function () { window.tinymce = window.tinyMCE = window.wpgallery = null; } ); // Cleanup.
 
 /* gallery settings */
 window.tinymce = null;
diff --git a/src/js/_enqueues/lib/image-edit.js b/src/js/_enqueues/lib/image-edit.js
index 6d9f3e09a5..099398b4e3 100644
--- a/src/js/_enqueues/lib/image-edit.js
+++ b/src/js/_enqueues/lib/image-edit.js
@@ -127,7 +127,7 @@
 
 			// Key codes 37 through 40 are the arrow keys.
 			if ( 36 < k && k < 41 ) {
-				$(this).blur();
+				$(this).trigger( 'blur' );
 			}
 
 			// The key code 13 is the Enter key.
diff --git a/src/js/_enqueues/lib/language-chooser.js b/src/js/_enqueues/lib/language-chooser.js
index 8eb33b4422..7740d161fe 100644
--- a/src/js/_enqueues/lib/language-chooser.js
+++ b/src/js/_enqueues/lib/language-chooser.js
@@ -14,7 +14,7 @@ if ( ! $( 'body' ).hasClass( 'language-chooser' ) ) {
 	return;
 }
 
-select.focus().on( 'change', function() {
+select.trigger( 'focus' ).on( 'change', function() {
 	/*
 	 * When a language is selected, set matching translation to continue button
 	 * and attach the language attribute.
@@ -26,7 +26,7 @@ select.focus().on( 'change', function() {
 	});
 });
 
-$( 'form' ).submit( function() {
+$( 'form' ).on( 'submit', function() {
 	// Show spinner for languages that need to be downloaded.
 	if ( ! select.children( 'option:selected' ).data( 'installed' ) ) {
 		$( this ).find( '.step .spinner' ).css( 'visibility', 'visible' );
diff --git a/src/js/_enqueues/lib/link.js b/src/js/_enqueues/lib/link.js
index 736485c095..7fa60a8e83 100644
--- a/src/js/_enqueues/lib/link.js
+++ b/src/js/_enqueues/lib/link.js
@@ -181,7 +181,7 @@
 
 			if ( isTouch ) {
 				// Close the onscreen keyboard.
-				inputs.url.focus().blur();
+				inputs.url.trigger( 'focus' ).trigger( 'blur' );
 			} else {
 				/*
 				 * Focus the URL field and highlight its contents.
@@ -190,7 +190,7 @@
 				 */
 				window.setTimeout( function() {
 					inputs.url[0].select();
-					inputs.url.focus();
+					inputs.url.trigger( 'focus' );
 				} );
 			}
 
@@ -557,10 +557,10 @@
 				// wp-link-submit must always be the last focusable element in the dialog.
 				// Following focusable elements will be skipped on keyboard navigation.
 				if ( id === 'wp-link-submit' && ! event.shiftKey ) {
-					inputs.close.focus();
+					inputs.close.trigger( 'focus' );
 					event.preventDefault();
 				} else if ( id === 'wp-link-close' && event.shiftKey ) {
-					inputs.submit.focus();
+					inputs.submit.trigger( 'focus' );
 					event.preventDefault();
 				}
 			}
diff --git a/src/js/_enqueues/lib/lists.js b/src/js/_enqueues/lib/lists.js
index 1ca1b751b6..aa6796cc0f 100644
--- a/src/js/_enqueues/lib/lists.js
+++ b/src/js/_enqueues/lib/lists.js
@@ -271,7 +271,7 @@ wpList = {
 			target:  list.get( 0 )
 		}, settings || {} );
 
-		if ( $.isFunction( settings.confirm ) ) {
+		if ( typeof settings.confirm === 'function' ) {
 			$element = $( '#' + settings.element );
 
 			if ( 'add' !== action ) {
@@ -337,13 +337,13 @@ wpList = {
 		}, wpAjax.unserialize( data[4] || '' ) ) );
 
 		formValues = $( '#' + settings.element + ' :input' ).not( '[name="_ajax_nonce"], [name="_wpnonce"], [name="action"]' );
-		formData   = $.isFunction( formValues.fieldSerialize ) ? formValues.fieldSerialize() : formValues.serialize();
+		formData   = typeof formValues.fieldSerialize === 'function' ? formValues.fieldSerialize() : formValues.serialize();
 
 		if ( formData ) {
 			settings.data += '&' + formData;
 		}
 
-		if ( $.isFunction( settings.addBefore ) ) {
+		if ( typeof settings.addBefore === 'function' ) {
 			settings = settings.addBefore( settings );
 
 			if ( ! settings ) {
@@ -381,7 +381,7 @@ wpList = {
 		};
 
 		settings.complete = function( jqXHR, status ) {
-			if ( $.isFunction( settings.addAfter ) ) {
+			if ( typeof settings.addAfter === 'function' ) {
 				settings.addAfter( returnedResponse, $.extend( {
 					xml:    jqXHR,
 					status: status,
@@ -427,7 +427,7 @@ wpList = {
 			id:          settings.element.split( '-' ).pop()
 		}, wpAjax.unserialize( data[4] || '' ) );
 
-		if ( $.isFunction( settings.delBefore ) ) {
+		if ( typeof settings.delBefore === 'function' ) {
 			settings = settings.delBefore( settings, list );
 
 			if ( ! settings ) {
@@ -466,7 +466,7 @@ wpList = {
 		};
 
 		settings.complete = function( jqXHR, status ) {
-			if ( $.isFunction( settings.delAfter ) ) {
+			if ( typeof settings.delAfter === 'function' ) {
 				$eventTarget.queue( function() {
 					settings.delAfter( returnedResponse, $.extend( {
 						xml:    jqXHR,
@@ -522,7 +522,7 @@ wpList = {
 			dimClass:    settings.dimClass
 		}, wpAjax.unserialize( data[6] || '' ) );
 
-		if ( $.isFunction( settings.dimBefore ) ) {
+		if ( typeof settings.dimBefore === 'function' ) {
 			settings = settings.dimBefore( settings );
 
 			if ( ! settings ) {
@@ -591,7 +591,7 @@ wpList = {
 		};
 
 		settings.complete = function( jqXHR, status ) {
-			if ( $.isFunction( settings.dimAfter ) ) {
+			if ( typeof settings.dimAfter === 'function' ) {
 				$eventTarget.queue( function() {
 					settings.dimAfter( returnedResponse, $.extend( {
 						xml:    jqXHR,
diff --git a/src/js/_enqueues/lib/nav-menu.js b/src/js/_enqueues/lib/nav-menu.js
index 12e02a3036..bd031d9905 100644
--- a/src/js/_enqueues/lib/nav-menu.js
+++ b/src/js/_enqueues/lib/nav-menu.js
@@ -857,7 +857,7 @@
 
 				if ( e.keyCode === 13 ) {
 					e.preventDefault();
-					$( '#submit-customlinkdiv' ).click();
+					$( '#submit-customlinkdiv' ).trigger( 'click' );
 				}
 			});
 		},
@@ -967,7 +967,7 @@
 				// Remove the Ajax spinner.
 				$( '.customlinkdiv .spinner' ).removeClass( 'is-active' );
 				// Set custom link form back to defaults.
-				$('#custom-menu-item-name').val('').blur();
+				$('#custom-menu-item-name').val('').trigger( 'blur' );
 				$( '#custom-menu-item-url' ).val( '' ).attr( 'placeholder', 'https://' );
 			});
 		},
@@ -1059,7 +1059,7 @@
 				};
 			} else {
 				// Make the post boxes read-only, as they can't be used yet.
-				$( '#menu-settings-column' ).find( 'input,select' ).end().find( 'a' ).attr( 'href', '#' ).unbind( 'click' );
+				$( '#menu-settings-column' ).find( 'input,select' ).end().find( 'a' ).attr( 'href', '#' ).off( 'click' );
 			}
 		},
 
@@ -1141,7 +1141,7 @@
 
 				$.post( ajaxurl, this.href.replace( /.*\?/, '' ).replace( /action=([^&]*)/, '' ) + '&action=menu-get-metabox',
 					function( resp ) {
-						var metaBoxData = $.parseJSON( resp ),
+						var metaBoxData = JSON.parse( resp ),
 							toReplace;
 
 						if ( -1 === resp.indexOf( 'replace-id' ) ) {
@@ -1354,4 +1354,4 @@
 		});
 	});
 
-})(jQuery);
\ No newline at end of file
+})(jQuery);
diff --git a/src/js/_enqueues/vendor/jquery/jquery.hotkeys.js b/src/js/_enqueues/vendor/jquery/jquery.hotkeys.js
index d5e5009adf..e72a5937e8 100644
--- a/src/js/_enqueues/vendor/jquery/jquery.hotkeys.js
+++ b/src/js/_enqueues/vendor/jquery/jquery.hotkeys.js
@@ -39,7 +39,7 @@ USAGE:
         ".":">",  "/":"?",  "\\":"|" };
 
     this.add = function(combi, options, callback) {
-        if (jQuery.isFunction(options)){
+        if ( typeof options === 'function' ){
             callback = options;
             options = {};
         }
diff --git a/src/js/_enqueues/vendor/jquery/jquery.serialize-object.js b/src/js/_enqueues/vendor/jquery/jquery.serialize-object.js
index 03b905bf5b..d0c4943abf 100644
--- a/src/js/_enqueues/vendor/jquery/jquery.serialize-object.js
+++ b/src/js/_enqueues/vendor/jquery/jquery.serialize-object.js
@@ -1,7 +1,7 @@
 /*!
- * jQuery serializeObject - v0.2 - 1/20/2010
+ * jQuery serializeObject - v0.2-wp - 1/20/2010
  * http://benalman.com/projects/jquery-misc-plugins/
- * 
+ *
  * Copyright (c) 2010 "Cowboy" Ben Alman
  * Dual licensed under the MIT and GPL licenses.
  * http://benalman.com/about/license/
@@ -12,20 +12,20 @@
 
 (function($,undefined){
   '$:nomunge'; // Used by YUI compressor.
-  
+
   $.fn.serializeObject = function(){
     var obj = {};
-    
+
     $.each( this.serializeArray(), function(i,o){
       var n = o.name,
         v = o.value;
-        
+
         obj[n] = obj[n] === undefined ? v
-          : $.isArray( obj[n] ) ? obj[n].concat( v )
+          : Array.isArray( obj[n] ) ? obj[n].concat( v )
           : [ obj[n], v ];
     });
-    
+
     return obj;
   };
-  
+
 })(jQuery);
diff --git a/src/js/_enqueues/vendor/jquery/jquery.table-hotkeys.js b/src/js/_enqueues/vendor/jquery/jquery.table-hotkeys.js
index bc7835e954..d6991995f6 100644
--- a/src/js/_enqueues/vendor/jquery/jquery.table-hotkeys.js
+++ b/src/js/_enqueues/vendor/jquery/jquery.table-hotkeys.js
@@ -14,7 +14,7 @@
 	$.table_hotkeys = function(table, keys, opts) {
 		opts = $.extend($.table_hotkeys.defaults, opts);
 		var selected_class, destructive_class, set_current_row, adjacent_row_callback, get_adjacent_row, adjacent_row, prev_row, next_row, check, get_first_row, get_last_row, make_key_callback, first_row;
-		
+
 		selected_class = opts.class_prefix + opts.selected_suffix;
 		destructive_class = opts.class_prefix + opts.destructive_suffix;
 		set_current_row = function (tr) {
@@ -24,13 +24,13 @@
 			$.table_hotkeys.current_row = tr;
 		};
 		adjacent_row_callback = function(which) {
-			if (!adjacent_row(which) && $.isFunction(opts[which+'_page_link_cb'])) {
+			if (!adjacent_row(which) && typeof opts[which+'_page_link_cb'] === 'function' ) {
 				opts[which+'_page_link_cb']();
 			}
 		};
 		get_adjacent_row = function(which) {
 			var first_row, method;
-			
+
 			if (!$.table_hotkeys.current_row) {
 				first_row = get_first_row();
 				$.table_hotkeys.current_row = first_row;
@@ -65,7 +65,7 @@
 				var clickable = $(expr, $.table_hotkeys.current_row);
 				if (!clickable.length) return false;
 				if (clickable.is('.'+destructive_class)) next_row() || prev_row();
-				clickable.click();
+				clickable.trigger( 'click' );
 			};
 		};
 		first_row = get_first_row();
@@ -79,8 +79,8 @@
 		$.hotkeys.add(opts.mark_key, opts.hotkeys_opts, check);
 		$.each(keys, function() {
 			var callback, key;
-			
-			if ($.isFunction(this[1])) {
+
+			if ( typeof this[1] === 'function' ) {
 				callback = this[1];
 				key = this[0];
 				$.hotkeys.add(key, opts.hotkeys_opts, function(event) { return callback(event, $.table_hotkeys.current_row); });
diff --git a/src/js/_enqueues/wp/autosave.js b/src/js/_enqueues/wp/autosave.js
index 1a57ead46a..0351388c4a 100644
--- a/src/js/_enqueues/wp/autosave.js
+++ b/src/js/_enqueues/wp/autosave.js
@@ -541,7 +541,7 @@ window.autosave = function() {
 					lastCompareString = getCompareString( postData );
 
 					if ( $( '#title' ).val() !== postData.post_title ) {
-						$( '#title' ).focus().val( postData.post_title || '' );
+						$( '#title' ).trigger( 'focus' ).val( postData.post_title || '' );
 					}
 
 					$( '#excerpt' ).val( postData.excerpt || '' );
@@ -560,8 +560,8 @@ window.autosave = function() {
 					} else {
 
 						// Make sure the Text editor is selected.
-						$( '#content-html' ).click();
-						$( '#content' ).focus();
+						$( '#content-html' ).trigger( 'click' );
+						$( '#content' ).trigger( 'focus' );
 
 						// Using document.execCommand() will let the user undo.
 						document.execCommand( 'selectAll' );
diff --git a/src/js/_enqueues/wp/dashboard.js b/src/js/_enqueues/wp/dashboard.js
index cd44854e26..f2ddad2d45 100644
--- a/src/js/_enqueues/wp/dashboard.js
+++ b/src/js/_enqueues/wp/dashboard.js
@@ -154,7 +154,7 @@ jQuery(document).ready( function($) {
 				highlightLatestPost();
 
 				// Focus the title to allow for quickly drafting another post.
-				$('#title').focus();
+				$('#title').trigger( 'focus' );
 			});
 
 			/**
@@ -391,7 +391,7 @@ jQuery( function( $ ) {
 				 * lose their place.
 				 */
 				if ( $target.hasClass( 'community-events-cancel' ) ) {
-					$toggleButton.focus();
+					$toggleButton.trigger( 'focus' );
 				}
 			} else {
 				$toggleButton.attr( 'aria-expanded', 'true' );
@@ -610,7 +610,7 @@ jQuery( function( $ ) {
 					 * bring the focus back to the toggle button so users relying
 					 * on screen readers don't lose their place.
 					 */
-					$toggleButton.focus();
+					$toggleButton.trigger( 'focus' );
 				}
 			} else {
 				app.toggleLocationForm( 'show' );
diff --git a/src/js/_enqueues/wp/svg-painter.js b/src/js/_enqueues/wp/svg-painter.js
index e697a0df28..85bc04ac65 100644
--- a/src/js/_enqueues/wp/svg-painter.js
+++ b/src/js/_enqueues/wp/svg-painter.js
@@ -160,17 +160,14 @@ wp.svgPainter = ( function( $, window, document, undefined ) {
 					painter.paintElement( $element, 'base' );
 
 					// Set hover callbacks.
-					$menuitem.hover(
-						function() {
-							painter.paintElement( $element, 'focus' );
-						},
-						function() {
-							// Match the delay from hoverIntent.
-							window.setTimeout( function() {
-								painter.paintElement( $element, 'base' );
-							}, 100 );
-						}
-					);
+					$menuitem.on( 'mouseenter', function() {
+						painter.paintElement( $element, 'focus' );
+					} ).on( 'mouseleave', function() {
+						// Match the delay from hoverIntent.
+						window.setTimeout( function() {
+							painter.paintElement( $element, 'base' );
+						}, 100 );
+					} );
 				}
 			});
 		},
diff --git a/src/js/_enqueues/wp/updates.js b/src/js/_enqueues/wp/updates.js
index 3371e84d27..f98a48e5d6 100644
--- a/src/js/_enqueues/wp/updates.js
+++ b/src/js/_enqueues/wp/updates.js
@@ -629,7 +629,7 @@
 				setTimeout( function() {
 					$card
 						.removeClass( 'plugin-card-update-failed' )
-						.find( '.column-name a' ).focus();
+						.find( '.column-name a' ).trigger( 'focus' );
 
 					$card.find( '.update-now' )
 						.attr( 'aria-label', false )
@@ -801,7 +801,7 @@
 			setTimeout( function() {
 				$card
 					.removeClass( 'plugin-card-update-failed' )
-					.find( '.column-name a' ).focus();
+					.find( '.column-name a' ).trigger( 'focus' );
 			}, 200 );
 		} );
 
@@ -1215,10 +1215,10 @@
 
 			// Focus on Customize button after updating.
 			if ( isModalOpen ) {
-				$( '.load-customize:visible' ).focus();
+				$( '.load-customize:visible' ).trigger( 'focus' );
 				$( '.theme-info .theme-autoupdate' ).find( '.auto-update-time' ).empty();
 			} else {
-				$theme.find( '.load-customize' ).focus();
+				$theme.find( '.load-customize' ).trigger( 'focus' );
 			}
 		}
 
@@ -1271,7 +1271,7 @@
 		} else {
 			$notice = $( '.theme-info .notice' ).add( $theme.find( '.notice' ) );
 
-			$( 'body.modal-open' ).length ? $( '.load-customize:visible' ).focus() : $theme.find( '.load-customize' ).focus();
+			$( 'body.modal-open' ).length ? $( '.load-customize:visible' ).trigger( 'focus' ) : $theme.find( '.load-customize' ).trigger( 'focus');
 		}
 
 		wp.updates.addAdminNotice( {
@@ -1768,11 +1768,11 @@
 
 			// #upgrade button must always be the last focus-able element in the dialog.
 			if ( 'upgrade' === event.target.id && ! event.shiftKey ) {
-				$( '#hostname' ).focus();
+				$( '#hostname' ).trigger( 'focus' );
 
 				event.preventDefault();
 			} else if ( 'hostname' === event.target.id && event.shiftKey ) {
-				$( '#upgrade' ).focus();
+				$( '#upgrade' ).trigger( 'focus' );
 
 				event.preventDefault();
 			}
@@ -1789,7 +1789,7 @@
 
 		$( 'body' ).addClass( 'modal-open' );
 		$modal.show();
-		$modal.find( 'input:enabled:first' ).focus();
+		$modal.find( 'input:enabled:first' ).trigger( 'focus' );
 		$modal.on( 'keydown', wp.updates.keydown );
 	};
 
diff --git a/src/js/_enqueues/wp/widgets/text.js b/src/js/_enqueues/wp/widgets/text.js
index ae11f16160..c2deeefa96 100644
--- a/src/js/_enqueues/wp/widgets/text.js
+++ b/src/js/_enqueues/wp/widgets/text.js
@@ -59,7 +59,7 @@ wp.textWidgets = ( function( $ ) {
 				control.customHtmlWidgetPointer.find( '.close' ).on( 'click', function( event ) {
 					event.preventDefault();
 					control.customHtmlWidgetPointer.hide();
-					$( '#' + control.fields.text.attr( 'id' ) + '-html' ).focus();
+					$( '#' + control.fields.text.attr( 'id' ) + '-html' ).trigger( 'focus' );
 					control.dismissPointers( [ 'text_widget_custom_html' ] );
 				});
 				control.customHtmlWidgetPointer.find( '.add-widget' ).on( 'click', function( event ) {
@@ -278,7 +278,7 @@ wp.textWidgets = ( function( $ ) {
 				 */
 				showPointerElement = function( pointerElement ) {
 					pointerElement.show();
-					pointerElement.find( '.close' ).focus();
+					pointerElement.find( '.close' ).trigger( 'focus' );
 					wp.a11y.speak( pointerElement.find( 'h3, p' ).map( function() {
 						return $( this ).text();
 					} ).get().join( '\n\n' ) );
diff --git a/src/wp-includes/script-loader.php b/src/wp-includes/script-loader.php
index c47a54429c..34728ca5f6 100644
--- a/src/wp-includes/script-loader.php
+++ b/src/wp-includes/script-loader.php
@@ -827,7 +827,7 @@ function wp_default_scripts( $scripts ) {
 	$scripts->add( 'jquery-color', '/wp-includes/js/jquery/jquery.color.min.js', array( 'jquery' ), '2.1.2', 1 );
 	$scripts->add( 'schedule', '/wp-includes/js/jquery/jquery.schedule.js', array( 'jquery' ), '20m', 1 );
 	$scripts->add( 'jquery-query', '/wp-includes/js/jquery/jquery.query.js', array( 'jquery' ), '2.1.7', 1 );
-	$scripts->add( 'jquery-serialize-object', '/wp-includes/js/jquery/jquery.serialize-object.js', array( 'jquery' ), '0.2', 1 );
+	$scripts->add( 'jquery-serialize-object', '/wp-includes/js/jquery/jquery.serialize-object.js', array( 'jquery' ), '0.2-wp', 1 );
 	$scripts->add( 'jquery-hotkeys', "/wp-includes/js/jquery/jquery.hotkeys$suffix.js", array( 'jquery' ), '0.0.2m', 1 );
 	$scripts->add( 'jquery-table-hotkeys', "/wp-includes/js/jquery/jquery.table-hotkeys$suffix.js", array( 'jquery', 'jquery-hotkeys' ), false, 1 );
 	$scripts->add( 'jquery-touch-punch', '/wp-includes/js/jquery/jquery.ui.touch-punch.js', array( 'jquery-ui-core', 'jquery-ui-mouse' ), '0.2.2', 1 );