Update change history section (#553)

act-rules-format/act-rules-format.bs

@@ -1013,21 +1013,14 @@ Appendix 3: Change History {#Change_History}
 
 This section is *non-normative*.
 
-No substantial changes have been made since the previous [Candidate Recommendation draft of 16 April 2019](https://www.w3.org/TR/2019/CR-act-rules-format-1.0-20190416/). The following editorial changes have been made since the previous draft:
-
 <ul>
-  <li><strong>1. Introduction:</strong> Added relationship of ACT Rules to WCAG 2 Techniques</li>
-  <li><strong>1. Introduction:</strong> Removed unintended word "must" (was never a requirement)</li>
-  <li><strong>4. Rule Structure:</strong> Clarified that optional parts are a MAY requirement</li>
-  <li><strong>4.1. Rule Identifier:</strong> Moved requirements on versioning here from 4.11. Changelog</li>
-  <li><strong>4.1. Rule Identifier:</strong> Clarified scope of uniqueness of an identifier</li>
-  <li><strong>4.5.1. Input Aspects:</strong> Moved description of serving methods further down</li>
-  <li><strong>4.7.1. Expectations for Atomic Rules:</strong> Expanded note on complex aggregation</li>
-  <li><strong>4.14. Background:</strong> Removed unintended word "should" (was never a requirement)</li>
-  <li><strong>Appendix 1. Expressing ACT Results:</strong> Major revision (non-normative examples)</li>
-  <li><strong>Overall:</strong> Edits to align and clarify examples throughout the document</li>
-  <li><strong>Overall:</strong> Fixing typographical, grammatical, and spelling mistakes throughout</li>
-  <li><strong>Overall:</strong> Changed coding of RFC 2119 terms to improve accessibility/semantic</li>
+  <li><strong>4. Rule Structure</strong> Accessibility Support and Assumptions section are now subsections of Background.</li>
+  <li><strong>4.4. Accessibility Requirements Mapping</strong> Accessibility requirements are now categorized as either Conformance requirements or Secondary requirements.<li>
+  <li><strong>4.8. Background</strong> New optional Related Rules and Other Resources subsections have been added</li>
+  <li><strong>4.11. Change Log</strong> The Change Log has been renamed to Rule Versions</li>
+  <li><strong>4.14. Implementations<strong> New section has been added, including a method for determining consistency with ACT Rules</li>
+  <li><strong>7. Definitions</strong> The Outcome definition is updated to include cantTell and untested</li>
+  <li><strong>Overall</strong> Links to W3C specifications are updated to their latest recommendation</li>
 </ul>
 
-All changes from the previous published version can be viewed using the [April 2019 to July 2019 diff link](https://services.w3.org/htmldiff?doc1=https%3A%2F%2Fwww.w3.org%2FTR%2F2019%2FCR-act-rules-format-1.0-20190416%2F&doc2=https%3A%2F%2Fw3c.github.io%2Fwcag-act%2Fact-rules-format.html)
+All changes from the previous published version can be viewed using the [Editor's draft to Rules Format 1.0 Recommendation diff link](https://services.w3.org/htmldiff?doc1=https://www.w3.org/TR/act-rules-format/&doc2=https://w3c.github.io/wcag-act/act-rules-format.html)