diff --git a/css-contain-1/Overview.bs b/css-contain-1/Overview.bs
index 53551bcdc8e..55bdd47fc0d 100644
--- a/css-contain-1/Overview.bs
+++ b/css-contain-1/Overview.bs
@@ -48,7 +48,8 @@ Introduction</h2>
 
 	There are various heuristics that can be used to guess when a given sub-tree is independent of the rest of the page in some manner,
 	but they're fragile,
-	so innocuous changes to a page may inadvertently make it flunk the heuristics and fall into a slow mode.
+	so innocuous changes to a page may inadvertently make it fail such heuristic tests,
+	causing rendering to fall into a slow code path.
 	There are also many things that would be good to isolate which are difficult or impossible to detect in a heuristic manner.
 
 	To alleviate these problems
diff --git a/css-contain-1/issues-2019-10-pr.html b/css-contain-1/issues-2019-10-pr.html
new file mode 100644
index 00000000000..fe37f1f8c70
--- /dev/null
+++ b/css-contain-1/issues-2019-10-pr.html
@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Contain Level 1 Disposition of Comments for 2019-10-15 PR</title>
+<style>
+  .a  { background: lightgreen }
+  .d  { background: lightblue  }
+  .r  { background: orange     }
+  .fo { background: red        }
+  .open   { border: solid red; padding: 0.2em; }
+  :target { box-shadow: 0.25em 0.25em 0.25em;  }
+</style>
+
+<h1>CSS Contain Level 1 Disposition of Comments for 2019-10-15 PR</h1>
+
+<p>Review document: <a href="https://www.w3.org/TR/2019/PR-css-contain-1-20191015/">https://www.w3.org/TR/2019/PR-css-contain-1-20191015/</a>
+
+<p>Editor's draft: <a href="http://dev.w3.org/csswg/css-contain-1/">http://dev.w3.org/csswg/css-contain-1/</a>
+
+<p>The following color coding convention is used for comments:</p>
+
+<ul>
+ <li class="a">Accepted or Rejected and positive response
+ <li class="r">Rejected and no response
+ <li class="fo">Rejected and negative response
+ <li class="d">Deferred
+ <li class="oi">Out-of-Scope or Invalid and not verified
+</ul>
+
+<p class=open>Open issues are marked like this</p>
+
+<p>An issue can be closed as <code>Accepted</code>, <code>OutOfScope</code>,
+<code>Invalid</code>, <code>Rejected</code>, or <code>Retracted</code>.
+<code>Verified</code> indicates commentor's acceptance of the response.</p>
+        <pre class='a' id='issue-1'>
+Issue 1. <a href='#issue-1'>#</a>
+Summary:  Suggest Rephrasing in Introduction
+From:     Chris Needham
+Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/4466'>https://github.com/w3c/csswg-drafts/issues/4466</a>
+Response: <a href='https://github.com/w3c/csswg-drafts/pull/3898'>https://github.com/w3c/csswg-drafts/pull/3898</a>
+Closed:   Accepted
+Resolved: Editorial</pre>
+<script>
+(function () {
+    var sheet = document.styleSheets[0];
+    function addCheckbox(className) {
+        var element = document.querySelector('*.' + className);
+        var label = document.createElement('label');
+        label.innerHTML = element.innerHTML;
+        element.innerHTML = null;
+        var check = document.createElement('input');
+        check.type = 'checkbox';
+        if (className == 'open') {
+            check.checked = false;
+            sheet.insertRule('pre:not(.open)' + '{}', sheet.cssRules.length);
+            check.onchange = function (e) {
+                rule.style.display = this.checked ? 'none' : 'block';
+            }
+        }
+        else {
+            check.checked = true;
+            sheet.insertRule('pre.' + className + '{}', sheet.cssRules.length);
+            check.onchange = function (e) {
+                rule.style.display = this.checked ? 'block' : 'none';
+            }
+        }
+        var rule = sheet.cssRules[sheet.cssRules.length - 1];
+        element.appendChild(label);
+        label.insertBefore(check, label.firstChild);
+    }
+    ['a', 'd', 'fo', 'oi', 'r', 'open'].forEach(addCheckbox);
+}());
+</script>
diff --git a/css-contain-1/issues-2019-10-pr.txt b/css-contain-1/issues-2019-10-pr.txt
new file mode 100644
index 00000000000..728571cdd04
--- /dev/null
+++ b/css-contain-1/issues-2019-10-pr.txt
@@ -0,0 +1,11 @@
+Draft:    https://www.w3.org/TR/2019/PR-css-contain-1-20191015/
+Title:    CSS Contain Level 1
+
+----
+Issue 1.
+Summary:  Suggest Rephrasing in Introduction
+From:     Chris Needham
+Comment:  https://github.com/w3c/csswg-drafts/issues/4466
+Response: https://github.com/w3c/csswg-drafts/pull/3898
+Closed:   Accepted
+Resolved: Editorial
diff --git a/css-contain-2/Overview.bs b/css-contain-2/Overview.bs
index 94544cd6772..3dc63a59a7e 100644
--- a/css-contain-2/Overview.bs
+++ b/css-contain-2/Overview.bs
@@ -50,7 +50,8 @@ Introduction</h2>
 
 	There are various heuristics that can be used to guess when a given sub-tree is independent of the rest of the page in some manner,
 	but they're fragile,
-	so innocuous changes to a page may inadvertently make it flunk the heuristics and fall into a slow mode.
+	so innocuous changes to a page may inadvertently make it fail such heuristic tests,
+	causing rendering to fall into a slow code path.
 	There are also many things that would be good to isolate which are difficult or impossible to detect in a heuristic manner.
 
 	To alleviate these problems
diff --git a/css-contain-2/issues-2019-10-pr.html b/css-contain-2/issues-2019-10-pr.html
new file mode 100644
index 00000000000..53ababa7009
--- /dev/null
+++ b/css-contain-2/issues-2019-10-pr.html
@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Contain Level 2 Disposition of Comments for 2019-10-15 WD</title>
+<style>
+  .a  { background: lightgreen }
+  .d  { background: lightblue  }
+  .r  { background: orange     }
+  .fo { background: red        }
+  .open   { border: solid red; padding: 0.2em; }
+  :target { box-shadow: 0.25em 0.25em 0.25em;  }
+</style>
+
+<h1>CSS Contain Level 2 Disposition of Comments for 2019-10-15 WD</h1>
+
+<p>Review document: <a href="https://www.w3.org/TR/2019/WD-css-contain-2-20191015/">https://www.w3.org/TR/2019/WD-css-contain-2-20191015/</a>
+
+<p>Editor's draft: <a href="http://dev.w3.org/csswg/css-contain-2/">http://dev.w3.org/csswg/css-contain-2/</a>
+
+<p>The following color coding convention is used for comments:</p>
+
+<ul>
+ <li class="a">Accepted or Rejected and positive response
+ <li class="r">Rejected and no response
+ <li class="fo">Rejected and negative response
+ <li class="d">Deferred
+ <li class="oi">Out-of-Scope or Invalid and not verified
+</ul>
+
+<p class=open>Open issues are marked like this</p>
+
+<p>An issue can be closed as <code>Accepted</code>, <code>OutOfScope</code>,
+<code>Invalid</code>, <code>Rejected</code>, or <code>Retracted</code>.
+<code>Verified</code> indicates commentor's acceptance of the response.</p>
+        <pre class='a' id='issue-1'>
+Issue 1. <a href='#issue-1'>#</a>
+Summary:  Suggest Rephrasing in Introduction
+From:     Chris Needham
+Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/4466'>https://github.com/w3c/csswg-drafts/issues/4466</a>
+Response: <a href='https://github.com/w3c/csswg-drafts/pull/3898'>https://github.com/w3c/csswg-drafts/pull/3898</a>
+Closed:   Accepted
+Resolved: Editorial</pre>
+<script>
+(function () {
+    var sheet = document.styleSheets[0];
+    function addCheckbox(className) {
+        var element = document.querySelector('*.' + className);
+        var label = document.createElement('label');
+        label.innerHTML = element.innerHTML;
+        element.innerHTML = null;
+        var check = document.createElement('input');
+        check.type = 'checkbox';
+        if (className == 'open') {
+            check.checked = false;
+            sheet.insertRule('pre:not(.open)' + '{}', sheet.cssRules.length);
+            check.onchange = function (e) {
+                rule.style.display = this.checked ? 'none' : 'block';
+            }
+        }
+        else {
+            check.checked = true;
+            sheet.insertRule('pre.' + className + '{}', sheet.cssRules.length);
+            check.onchange = function (e) {
+                rule.style.display = this.checked ? 'block' : 'none';
+            }
+        }
+        var rule = sheet.cssRules[sheet.cssRules.length - 1];
+        element.appendChild(label);
+        label.insertBefore(check, label.firstChild);
+    }
+    ['a', 'd', 'fo', 'oi', 'r', 'open'].forEach(addCheckbox);
+}());
+</script>
diff --git a/css-contain-2/issues-2019-10-pr.txt b/css-contain-2/issues-2019-10-pr.txt
new file mode 100644
index 00000000000..a7a7f86114a
--- /dev/null
+++ b/css-contain-2/issues-2019-10-pr.txt
@@ -0,0 +1,11 @@
+Draft:    https://www.w3.org/TR/2019/WD-css-contain-2-20191015/
+Title:    CSS Contain Level 2
+
+----
+Issue 1.
+Summary:  Suggest Rephrasing in Introduction
+From:     Chris Needham
+Comment:  https://github.com/w3c/csswg-drafts/issues/4466
+Response: https://github.com/w3c/csswg-drafts/pull/3898
+Closed:   Accepted
+Resolved: Editorial
