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

Author: svgeesus

css-color-4/Overview.bs

@@ -8196,7 +8196,20 @@ Changes</h2>
 	<a href="https://www.w3.org/TR/2025/CRD-css-color-4-20250424/">Candidate Recommendation Draft of 24 April 2025</a></h3>
 
 <ul>
-	<!-- to 27 April 2026 -->
+	<!-- to 21 June 2026 -->
+	<li>Split serialization of alpha values by whether legacy and modern syntax was used; require 16bit alpha
+		(<a href="https://github.com/w3c/csswg-drafts/issues/13994">Issue 13994</a>)
+	</li>
+	<li>Consistent mention of display-p3-linear in color(...) syntax 
+		(<a href="https://github.com/w3c/csswg-drafts/pull/14024">PR 14024</a>)
+	</li>
+	<li>
+		Rework the color-scheme section to use the concepts of 'page color scheme' and 'element color scheme'
+		(<a href="https://github.com/w3c/csswg-drafts/pull/13857">Issue 13857</a>)
+	</li>
+	<li>Pick sRGB serialization form by presence of none
+		(<a href="https://github.com/w3c/csswg-drafts/issues/10254">Issue 10254</a>)
+	</li>
 	<li>For color comparisons in Oklab, standardized ε to be <strong>0.00001</strong>
 		(<a href="https://github.com/w3c/csswg-drafts/issues/13157#issuecomment-4329625711">Issue 13157</a>)
 	</li>