[css-values-4] Update Changes section

Author: fantasai

css-values-4/Overview.bs

@@ -4515,29 +4515,28 @@ Changes</h2>
 <h3 class=no-num id="changes-recent">
 Recent Changes</h3>
 
-	Changes since the <a href="https://www.w3.org/TR/2018/WD-css-values-4-20181010/">10 October 2018 Working Draft</a> consist of
-	synchronizing with the <a href="https://www.w3.org/TR/2019/CR-css-values-3-20190131/#changes">recent changes in CSS Level 3</a>.
-
-	Changes since the <a href="https://www.w3.org/TR/2018/WD-css-values-4-20180814/">14 August 2018 Working Draft</a>:
-
-	<ul>
-		<li>Added rules for interpolation per value type, and clarified computed values.
-	</ul>
-
 <h3 class=no-num id="additions-L3">
 Additions Since Level 3</h3>
 
 	Changes since <a href="http://www.w3.org/TR/css-values-3/">CSS Values and Units Level 3</a>:
 
 	<ul>
+		<li>Added rules for interpolation per value type,
+			and their clarified computed values.
+		<li>Defined the <<dashed-ident>> type.
+		<li>Added ''src()'' to the <<url>> type.
 		<li>Added the ''vi'', ''vb'', ''ic'', ''cap'', ''lh'' and ''rlh'' units.
-		<li>Added ''min()'', ''max()'', and ''clamp()'' functional notations.
-		<li>Added unit arithmetic to ''calc()''.
-		<li>Added ''toggle()'' (punted from level 3 originally).
-		<li>Added [[#calc-type-checking|unit algebra]],
-			cribbing from [[css-typed-om-1]].
+		<li>Added ''min()'', ''max()'', and ''clamp()''
+			[[#comp-func|comparison functions]].
+		<li>Added ''round()'', ''mod()'', ''rem()'', ''sin()'', ''cos()'', ''tan()'', ''asin()'', ''acos()'', ''atan()'', ''atan2()'', ''pow()'', ''sqrt()'', ''hypot()'', ''log()'', ''exp()'', ''abs()'', ''sign()''
+			math functions.
+		<li>Added ''e'', ''pi'', ''infinity'', ''-infinity'', ''NaN''
+			constants for use in ''calc()''.
+		<li>Added [[#calc-type-checking|unit algebra]] to ''calc()'',
+			allowing multiplication and division of [=dimensions=].
+		<li>Added back ''toggle()'' (punted from level 3 originally).
 		<li>A non-integer in a calc() automatically rounds to the nearest integer
-			when used where an <<integer>> is required.
+		    when used where an <<integer>> is required.
 		<li>Defined [[#calc-serialize|serialization]] of [=math functions=].
 	</ul>