diff --git a/guidelines/index.html b/guidelines/index.html
index b276360..612b897 100644
--- a/guidelines/index.html
+++ b/guidelines/index.html
@@ -1248,7 +1248,7 @@ <h3>Issue severity</h3>
 				</ul>
 				</div>
 				<p>Outcomes may allow for the concept of varying severity. High severity issues are those which prevent users from completing user processes (tasks). </p>
-				<p>Tests could include critical issues. Each test could have a category of severity, so some tests will be flagged as causing a critical issue.  Examples of critical issues in tests are at <a href="https://raw.githack.com/w3c/silver/Editor-draft-cleanup/methods/functional-images/tests.html">Text Alternative Available</a> and <a href="https://raw.githack.com/w3c/silver/Editor-draft-cleanup/methods/text-equiv/tests.html">Translates Speech And Non-Speech Audio</a>.</p>
+				<p>Tests could include critical issues. Each test could have a category of severity, so some tests will be flagged as causing a critical issue.</p>
 				</section>
 				
 				<section data-status="exploratory">
@@ -1573,6 +1573,22 @@ <h3>Approximate mapping of WCAG 2 and WCAG 3 documentation</h3>
 		</section>
 		<section class="appendix">
 			<h2>Change log</h2>
+         <p>This section shows substantive changes made in WCAG 3 since the First Public Working Draft was published in 21 January 2021 . 
+         		
+         <p>The full <a href="https://github.com/w3c/wcag3/commits/main/guidelines">commit history to WCAG 3</a> and <a href="https://github.com/w3c/silver/commits/main/guidelines">commit history to Silver</a> is available.
+         </p>
+         		
+         <ul>			
+            <li>2021-06-08: Moved explantory information to <a href="https://www.w3.org/TR/wcag-3.0-explainer/">Explainer for W3C Accessibility Guidelines (WCAG) 3.0</a>
+            </li>
+             <li>2021-12-07: Add Project Manager
+            </li>
+            <li>2023-07-24: Changed approach to WCAG 3 based feedback and removed old material that was not consistent with the new appraoch. Added WCAG 3 Guideline placeholders to indicate maturity level.
+            </li>
+            <li>2024-03-15: Updated placeholder guidelines with exploratory guidelines.
+            </li>
+		</ul>
+
 		</section>
 		<section class="appendix">
 			<h2>Acknowledgements</h2>