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<title>[60962] trunk/src/wp-content/themes/twentythirteen: Twenty Thirteen: Remove code and checks for obsolete browsers.</title>
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#msg dl.meta { border: 1px #006 solid; background: #369; padding: 6px; color: #fff; }
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<dl class="meta" style="font-size: 105%">
<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/60962">60962</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/60962","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>joedolson</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2025-10-17 21:00:32 +0000 (Fri, 17 Oct 2025)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Twenty Thirteen: Remove code and checks for obsolete browsers.
Remove IE specific code from Twenty Thirteen. Remove custom IE stylesheet contents, the HTML5 shiv contents (also targeting Safari 4.x and Firefox 3.x), and IE-specific code.
Props desrosj, sabernhardt, neychok, joedolson.
See <a href="https://core.trac.wordpress.org/ticket/58836">#58836</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpcontentthemestwentythirteencssiecss">trunk/src/wp-content/themes/twentythirteen/css/ie.css</a></li>
<li><a href="#trunksrcwpcontentthemestwentythirteenfunctionsphp">trunk/src/wp-content/themes/twentythirteen/functions.php</a></li>
<li><a href="#trunksrcwpcontentthemestwentythirteenjshtml5js">trunk/src/wp-content/themes/twentythirteen/js/html5.js</a></li>
<li><a href="#trunksrcwpcontentthemestwentythirteenreadmetxt">trunk/src/wp-content/themes/twentythirteen/readme.txt</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpcontentthemestwentythirteencssiecss"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-content/themes/twentythirteen/css/ie.css</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-content/themes/twentythirteen/css/ie.css 2025-10-17 20:59:33 UTC (rev 60961)
+++ trunk/src/wp-content/themes/twentythirteen/css/ie.css 2025-10-17 21:00:32 UTC (rev 60962)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1,288 +1 @@
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/*
-Styles for older IE versions (previous to IE9).
-*/
-
-
-
-.genericon:before:hover,
-.menu-toggle:after:hover,
-.date a:before:hover,
-.entry-meta .author a:before:hover,
-.format-audio .entry-content:before:hover,
-.comments-link a:before:hover,
-.tags-links a:first-child:before:hover,
-.categories-links a:first-child:before:hover,
-.edit-link > a:before:hover,
-.attachment-meta:before:hover,
-.attachment-meta a:before:hover,
-.comment-awaiting-moderation:before:hover,
-.comment-reply-link:before:hover,
-.comment-reply-title small a:before:hover,
-.bypostauthor > .comment-body .fn:before:hover {
- text-decoration: none;
-}
-
-.nav-menu .sub-menu ul,
-.nav-menu .children ul {
- left: 100%;
-}
-
-.site-header .home-link {
- max-width: 1040px;
-}
-
-.site-header .search-form [type="search"],
-.site-header .search-form [type="text"] {
- padding-top: 6px;
-}
-
-img.alignright {
- margin-right: 0;
-}
-
-img.alignleft {
- margin-left: 0;
-}
-
-.site-main .sidebar-inner {
- width: 1040px;
-}
-
-.site-main .widget-area {
- margin-right: 60px;
-}
-
-.format-image .entry-content .size-full {
- margin: 0;
- max-width: 604px;
-}
-
-.gallery-columns-1 .gallery-item,
-.gallery-columns-2 .gallery-item,
-.gallery-columns-3 .gallery-item {
- max-width: none;
-}
-
-.gallery img {
- width: auto;
-}
-
-.gallery-caption {
- background: #000;
- filter: alpha(opacity=0);
-}
-
-.gallery-item:hover .gallery-caption {
- filter: alpha(opacity=70);
-}
-
-.comment {
- clear: both;
-}
-
-.comment-meta,
-.comment-content,
-.comment-list .reply {
- width: 480px;
-}
-
-.depth-2 .comment-meta,
-.depth-2 .comment-content,
-.comment-list .depth-2 .reply {
- width: 460px;
-}
-
-.depth-3 .comment-meta,
-.depth-3 .comment-content,
-.comment-list .depth-3 .reply {
- width: 440px;
-}
-
-.depth-4 .comment-meta,
-.depth-4 .comment-content,
-.comment-list .depth-4 .reply {
- width: 420px;
-}
-
-.depth-5 .comment-meta,
-.depth-5 .comment-content,
-.comment-list .depth-5 .reply {
- width: 400px;
-}
-
-.comment-meta {
- margin-bottom: 0;
-}
-
-.widget {
- background: #f7f5e7;
-}
-
-.site-footer .widget {
- background: none;
-}
-
-/* Internet Explorer 8 */
-.ie8 .site {
- border: 0;
-}
-
-.ie8 img.size-full,
-.ie8 img.size-large {
- height: auto;
- width: auto;
-}
-
-.ie8 .sidebar .entry-header,
-.ie8 .sidebar .entry-content,
-.ie8 .sidebar .entry-summary,
-.ie8 .sidebar .entry-meta {
- max-width: 724px;
-}
-
-.ie8 .author-info {
- margin-left: 0;
-}
-
-.ie8 .paging-navigation .nav-previous .meta-nav {
- padding: 5px 0 8px;
- width: 40px;
-}
-
-.ie8 .paging-navigation .nav-next {
- line-height: 1;
-}
-
-.ie8 .format-status .entry-content:before,
-.ie8 .format-status .entry-meta:before {
- content: none;
-}
-
-.ie8 .site-main .widget-area {
- margin-right: 0;
-}
-
-/* Internet Explorer 7 */
-.ie7 audio,
-.ie7 canvas,
-.ie7 video {
- display: inline;
- zoom: 1;
-}
-
-.ie7 legend {
- margin-left: -7px;
-}
-
-.ie7 button,
-.ie7 input,
-.ie7 select,
-.ie7 textarea {
- vertical-align: middle;
-}
-
-.ie7 button,
-.ie7 input[type="button"],
-.ie7 input[type="reset"],
-.ie7 input[type="submit"] {
- overflow: visible;
-}
-
-.ie7 input[type="checkbox"],
-.ie7 input[type="radio"] {
- height: 13px;
- width: 13px;
-}
-
-.ie7 .screen-reader-text {
- clip: rect(1px 1px 1px 1px);
-}
-
-.ie7 .site-header {
- position: relative;
- z-index: 1;
-}
-
-.ie7 .main-navigation {
- max-width: 930px;
- padding-right: 150px;
-}
-
-.ie7 .nav-menu li a,
-.ie7 .nav-menu li {
- display: block;
- float: left;
-}
-
-.ie7 .nav-menu ul {
- top: 40px;
-}
-
-.ie7 .nav-menu .sub-menu,
-.ie7 .nav-menu .children {
- display: none;
- overflow: visible;
-}
-
-.ie7 ul.nav-menu li:hover > ul,
-.ie7 .nav-menu ul li:hover > ul {
- display: block;
-}
-
-.ie7 .site-header .search-form [type="search"],
-.ie7 .site-header .search-form [type="text"] {
- background-color: #fff;
- border: 2px solid #c3c0ab;
- cursor: text;
- height: 28px;
- outline: 0;
- width: 150px;
-}
-
-.ie7 .entry-header,
-.ie7 .entry-content,
-.ie7 .entry-summary,
-.ie7 .entry-meta {
- width: 604px;
-}
-
-.ie7 .format-status .entry-content,
-.ie7 .format-status .entry-meta {
- padding-left: 60px;
-}
-
-.ie7 .sidebar .format-status .entry-content,
-.ie7 .sidebar .format-status .entry-meta {
- padding-left: 60px;
-}
-
-.ie7 .sidebar .post-navigation .nav-links,
-.ie7 .sidebar .paging-navigation .nav-links {
- width: 604px;
-}
-
-.ie7 .paging-navigation .meta-nav {
- padding: 0 0 10px;
- vertical-align: middle;
- width: 40px;
-}
-
-.ie7 .comments-title,
-.ie7 .comment-list,
-.ie7 .comment-reply-title,
-.ie7 .comment-respond .comment-form {
- width: 604px;
-}
-
-.ie7 .site-footer .widget-area {
- max-width: none;
- left: auto;
-}
-
-/* RTL for Internet Explorer 7 & 8 */
-.rtl .format-audio .entry-content:before,
-.rtl .comment-reply-link:before,
-.rtl .comment-reply-login:before {
- -ms-filter: "FlipH";
- filter: FlipH;
-}
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/* This theme does not support Internet Explorer since version 4.5. */
</ins></span></pre></div>
<a id="trunksrcwpcontentthemestwentythirteenfunctionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-content/themes/twentythirteen/functions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-content/themes/twentythirteen/functions.php 2025-10-17 20:59:33 UTC (rev 60961)
+++ trunk/src/wp-content/themes/twentythirteen/functions.php 2025-10-17 21:00:32 UTC (rev 60962)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -350,8 +350,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> wp_enqueue_style( 'twentythirteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentythirteen-style' ), '20240520' );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Registers the Internet Explorer specific stylesheet.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- wp_register_style( 'twentythirteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentythirteen-style' ), '20150214' );
- wp_style_add_data( 'twentythirteen-ie', 'conditional', 'lt IE 9' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ wp_register_style( 'twentythirteen-ie', false, array( 'twentythirteen-style' ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'wp_enqueue_scripts', 'twentythirteen_scripts_styles' );
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunksrcwpcontentthemestwentythirteenjshtml5js"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-content/themes/twentythirteen/js/html5.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-content/themes/twentythirteen/js/html5.js 2025-10-17 20:59:33 UTC (rev 60961)
+++ trunk/src/wp-content/themes/twentythirteen/js/html5.js 2025-10-17 21:00:32 UTC (rev 60962)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1,8 +1 @@
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/*
- HTML5 Shiv v3.7.0 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
-*/
-(function(l,f){function m(){var a=e.elements;return"string"==typeof a?a.split(" "):a}function i(a){var b=n[a[o]];b||(b={},h++,a[o]=h,n[h]=b);return b}function p(a,b,c){b||(b=f);if(g)return b.createElement(a);c||(c=i(b));b=c.cache[a]?c.cache[a].cloneNode():r.test(a)?(c.cache[a]=c.createElem(a)).cloneNode():c.createElem(a);return b.canHaveChildren&&!s.test(a)?c.frag.appendChild(b):b}function t(a,b){if(!b.cache)b.cache={},b.createElem=a.createElement,b.createFrag=a.createDocumentFragment,b.frag=b.createFrag();
-a.createElement=function(c){return!e.shivMethods?b.createElem(c):p(c,a,b)};a.createDocumentFragment=Function("h,f","return function(){var n=f.cloneNode(),c=n.createElement;h.shivMethods&&("+m().join().replace(/[\w\-]+/g,function(a){b.createElem(a);b.frag.createElement(a);return'c("'+a+'")'})+");return n}")(e,b.frag)}function q(a){a||(a=f);var b=i(a);if(e.shivCSS&&!j&&!b.hasCSS){var c,d=a;c=d.createElement("p");d=d.getElementsByTagName("head")[0]||d.documentElement;c.innerHTML="x<style>article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}mark{background:#FF0;color:#000}template{display:none}</style>";
-c=d.insertBefore(c.lastChild,d.firstChild);b.hasCSS=!!c}g||t(a,b);return a}var k=l.html5||{},s=/^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i,r=/^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i,j,o="_html5shiv",h=0,n={},g;(function(){try{var a=f.createElement("a");a.innerHTML="<xyz></xyz>";j="hidden"in a;var b;if(!(b=1==a.childNodes.length)){f.createElement("a");var c=f.createDocumentFragment();b="undefined"==typeof c.cloneNode||
-"undefined"==typeof c.createDocumentFragment||"undefined"==typeof c.createElement}g=b}catch(d){g=j=!0}})();var e={elements:k.elements||"abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output progress section summary template time video",version:"3.7.0",shivCSS:!1!==k.shivCSS,supportsUnknownElements:g,shivMethods:!1!==k.shivMethods,type:"default",shivDocument:q,createElement:p,createDocumentFragment:function(a,b){a||(a=f);
-if(g)return a.createDocumentFragment();for(var b=b||i(a),c=b.frag.cloneNode(),d=0,e=m(),h=e.length;d<h;d++)c.createElement(e[d]);return c}};l.html5=e;q(f)})(this,document);
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+// This theme does not support Internet Explorer since version 4.5.
</ins></span></pre></div>
<a id="trunksrcwpcontentthemestwentythirteenreadmetxt"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-content/themes/twentythirteen/readme.txt</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-content/themes/twentythirteen/readme.txt 2025-10-17 20:59:33 UTC (rev 60961)
+++ trunk/src/wp-content/themes/twentythirteen/readme.txt 2025-10-17 21:00:32 UTC (rev 60962)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -38,10 +38,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> Twenty Thirteen Theme bundles the following third-party resources:
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-HTML5 Shiv v3.7.0, Copyright 2014 Alexander Farkas
-Licenses: MIT/GPL2
-Source: https://github.com/aFarkas/html5shiv
-
</del><span class="cx" style="display: block; padding: 0 10px"> Genericons icon font, Copyright 2013-2017 Automattic Inc.
</span><span class="cx" style="display: block; padding: 0 10px"> License: GNU GPL, Version 2 (or later)
</span><span class="cx" style="display: block; padding: 0 10px"> Source: http://www.genericons.com
</span></span></pre>
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