jQuery.cssNumber: Document the removal in 4.0

Author: mgol

entries/jQuery.cssNumber.xml

@@ -1,31 +1,16 @@
 <?xml version="1.0"?>
-<entry type="property" name="jQuery.cssNumber" return="Object">
+<entry type="property" name="jQuery.cssNumber" return="Object" removed="4.0">
   <title>jQuery.cssNumber</title>
   <signature>
     <added>1.4.3</added>
   </signature>
-  <desc>An object containing all CSS properties that may be used without a unit. The <a href="/css/"><code>.css()</code></a> method uses this object to see if it may append <code>px</code> to unitless values.</desc>
+  <desc>An object containing all CSS properties that may be used without a unit. Prior to jQuery 4.0, the <a href="/css/"><code>.css()</code></a> method uses this object to see if it may append <code>px</code> to unitless values.</desc>
   <longdesc>
-    <p>You can think about <code>jQuery.cssNumber</code> as a list of all CSS properties you might use without a unit. It's used by <a href="/css/"><code>.css()</code></a> to determine if it needs to add <code>px</code> to unitless values.</p>
-    <p>The keys of the <code>jQuery.cssNumber</code> object are camel-cased and the values are all set to <code>true</code>. If you want to prevent the <a href="/css/"><code>.css()</code></a> method from automatically adding the <code>px</code> unit for a specific CSS property, you can add an extra property to the <code>jQuery.cssNumber</code> object.</p>
+    <p>You can think about <code>jQuery.cssNumber</code> as a list of all CSS properties you might use without a unit. Prior to jQuery 4.0, it was used by <a href="/css/"><code>.css()</code></a> to determine if it needs to add <code>px</code> to unitless values.</p>
+    <p>The keys of the <code>jQuery.cssNumber</code> object are camel-cased and the values are all set to <code>true</code>. If you want to prevent the <a href="/css/"><code>.css()</code></a> method from automatically adding the <code>px</code> unit for a specific CSS property and that property is not yet a key of the <code>jQuery.cssNumber</code> object, you can add such an extra property:</p>
     <pre><code>
 jQuery.cssNumber.someCSSProp = true;
     </code></pre>
-    <p>By default the object contains the following properties:</p>
-    <ul>
-      <li><code>zIndex</code></li>
-      <li><code>fontWeight</code></li>
-      <li><code>opacity</code></li>
-      <li><code>zoom</code></li>
-      <li><code>lineHeight</code></li>
-      <li><code>widows</code> (added in jQuery 1.6)</li>
-      <li><code>orphans</code> (added in jQuery 1.6)</li>
-      <li><code>fillOpacity</code> (added in jQuery 1.6.2)</li>
-      <li><code>columnCount</code> (added in jQuery 1.9)</li>
-      <li><code>order</code> (added in jQuery 1.10.2)</li>
-      <li><code>flexGrow</code> (added in jQuery 1.11.1)</li>
-      <li><code>flexShrink</code> (added in jQuery 1.11.1)</li>
-    </ul>
   </longdesc>
   <category slug="css"/>
   <category slug="manipulation/style-properties"/>