--- /dev/null
+++ /dev/null
@@ -2050,6 +2056,9 @@ Changes</h2>
 		<li>Added definition of <<ident>> notation to definition of <a>identifiers</a>.
 		<li>Added <<length-percentage>> as a shorthand for <<length>> | <<percentage>>,
 			along with equivalent productions for angles, numbers, times, and frequencies.
+		<li>Allowed <<percentage>>s inside ''calc()'' to resolve as their own type,
+			if they occur in some (as yet theoretical) context
+			where they are not compatible with any other type.
 		<li>Various clarifications and editorial improvements.
 	</ul>