diff --git a/css-writing-modes-3/Overview.bs b/css-writing-modes-3/Overview.bs
index dc102555393..9a0040890fd 100644
--- a/css-writing-modes-3/Overview.bs
+++ b/css-writing-modes-3/Overview.bs
@@ -2332,7 +2332,7 @@ Horizontal-in-Vertical Composition: the 'text-combine-upright' property</h3>
   Name: text-combine-upright
   Value: none | all
   Initial: none
-  Applies to: non-replaced inline elements
+  Applies to: [=inline elements=] and text
   Inherited: yes
   Percentages: n/a
   Computed value: specified keyword
@@ -2352,7 +2352,7 @@ Horizontal-in-Vertical Composition: the 'text-combine-upright' property</h3>
 
     <dt><dfn value for=text-combine-upright>all</dfn>
     <dd>Attempt to typeset horizontally
-      all consecutive <a>typographic character units</a> within the box
+      all consecutive <a>typographic character units</a> within the box or text run
       such that they take up the space of a single <a>typographic character unit</a>
       within the vertical line box.
   </dl>
@@ -2506,6 +2506,15 @@ Privacy and Security Considerations {#priv-sec}
 
 <h2 class="no-num" id="changes">Changes</h2>
 
+  <h3 class="no-num" id="changes-2019">
+  Changes since the <a href="https://www.w3.org/TR/2019/REC-css-writing-modes-3-20191210/">December
+  2019 CSS Writing Modes Module Level 4 Recommendation</a></h3>
+
+  <ul class="informative">
+    <li>Updated “Applies to” line for 'text-combine-upright' to mention text
+      (since certain effects like ''display: contents'' can strip the box itself).
+  </ul>
+
   <h3 class="no-num" id="changes-20190903">
   Changes since the <a href="https://www.w3.org/TR/2019/CR-css-writing-modes-3-20190903">September
   2019 CSS Writing Modes Module Level 3 Candidate Recommendation</a></h3>
diff --git a/css-writing-modes-4/Overview.bs b/css-writing-modes-4/Overview.bs
index 7d4b01ff072..125ed76b0db 100644
--- a/css-writing-modes-4/Overview.bs
+++ b/css-writing-modes-4/Overview.bs
@@ -2557,7 +2557,7 @@ Horizontal-in-Vertical Composition: the 'text-combine-upright' property</h3>
 
     <dt><dfn value for=text-combine-upright>all</dfn>
     <dd>Attempt to typeset horizontally
-      all consecutive <a>typographic character units</a> within the box
+      all consecutive <a>typographic character units</a> within the box and text run
       such that they take up the space of a single <a>typographic character unit</a>
       within the vertical line box.
     <dt><dfn value for=text-combine-upright>digits <<integer>>?</dfn>