[css-fonts-4][editorial] Update changes

css-fonts-4/Overview.bs

@@ -8947,7 +8947,19 @@ Changes
 <h3 id="changes-2021-12-21">Changes from the <a href="https://www.w3.org/TR/2021/WD-css-fonts-4-20211221/">21 December 2021 Working Draft</a> </h3>
 
 <ul>
-	<!-- to 31 Jan 2024 -->
+	<!-- to 22 Jan 2025 -->
+	<li>Added generic(khmer-mul)</li>
+	<li>Used unicode-range-token instead of urange</li>
+	<li>Clarified requirement for user addition/removal of fonts</li>
+	<li>Made CSSFontFaceRule.style consistent with other CSS*Rule.style</li>
+	<li>Fixed 'font' syntax, simplified font-variant-css2 and font-width-css3 syntaxes</li>
+	<li>Restored monospace as generic font family (it had been accidentally deleted)</li>
+	<li>Corrected syntax of generic-family</li>
+	<li>Improved wording on PostScript names as fragment identifiers for font collections</li>
+	<li>Added missing @font-face descriptors</li>
+	<li>Used different interfaces for declarations blocks that expose a different set of descriptors or properties</li>
+	<li>Updated incremental font example to latest IFT specification</li>
+	<li>Defined CSSFontFeatureValuesRule.historicalForms</li>
 	<li>Corrected some broken links</li>
 	<li>In font matching algorithm, distinguished use of varfont slnt axis from synthetic obliquing</li>
 	<li> Clarified that font variations do not count as font synthesis</li>