[css-values-4] Update Changes list

Author: fantasai

css-values-4/Overview.bs

@@ -1145,7 +1145,7 @@ Range Restrictions and Range Definition Notation</h3>
 	Values of &minus;&infin; or &infin; must be written without units,
 	even if the value type uses units.
 	Values of ''0'' <em>can</em> be written without units,
-	even if the value type doesn't allow "unitless zeroes"
+	even if the value type doesn't allow “unitless zeroes”
 	(such as <<time>>).
 
 	Note: At the time of writing,
@@ -4961,12 +4961,30 @@ Recent Changes</h3>
 	Substantial changes since <a href="https://www.w3.org/TR/2021/WD-css-values-4-20211216/">16 December 2021 WD</a>:
 
 	<ul>
-		<li>Switch censoring of ''NaN'' that escapes a [=math function=] from infinity to zero.
+		<li>Switched censoring of ''NaN'' that escapes a [=math function=] from infinity to zero.
 			(<a href="https://github.com/w3c/csswg-drafts/issues/7067">Issue 7067</a>)
+		<li>Added [[#linked-properties]] to allow this property pattern to be easily referenced.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/7164">Issue 7164</a>)
+		<li>Restricted ''mix()'' to be the sole value of a declaration.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/6700">Issue 6700</a>)
 		<li>Updated to match latest Fetch terminology.
 			(<a href="https://github.com/whatwg/fetch/pull/1413">Fetch PR 1413</a>,
 			 <a href="https://github.com/w3c/csswg-drafts/pull/7160">CSS PR 7160</a>)
-		<li>	Clarified that the [=font-relative lengths=] are calculated without text shaping.
+		<li>Clarified that the [=font-relative lengths=] are calculated without text shaping.
+		<li>Defined serialization of empty urls to be <code>url("")</code>.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/6447">Issue 6447</a>)
+		<li>Defined serialization of <<position>> [=specified values=].
+			(<a href="https://github.com/w3c/csswg-drafts/issues/2274">Issue 2274</a>)
+		<li>Fixed definition of [=numbers=] to allow decimals in combination with scientific notation,
+			as originally intended and as defined in [[CSS-SYNTAX-3]].
+			(<a href="https://github.com/w3c/csswg-drafts/issues/7248">Issue 7248</a>)
+		<li>Corrected various functions to return an empty map
+			for their [=CSSNumericValue/type=] instead of «[ "number" → 1 ]».
+			(<a href="https://github.com/w3c/csswg-drafts/issues/7486">Issue 7486</a>)
+		<li>Clarified effect of special UA restrictions on 'line-height' on ''lh'' and ''rlh''.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/3257">Issue 3257</a>)
+		<li>Defined <code>&lt;function()></code> notation to refer to functional notations.
+			(<a href="https://github.com/w3c/csswg-drafts/issues/5728">Issue 5728</a>)
 	</ul>
 
 	Substantial changes since <a href="https://www.w3.org/TR/2021/WD-css-values-4-20211016/">16 October 2021 WD</a>: