Update changelog

Author: Relequestual

jsonschema-core.xml

@@ -547,8 +547,8 @@
                 </t>
                 <t>
                     Regular expressions SHOULD be built with the "u" flag (or equivalent) to provide
-                    Unicode support, or processed in such a way which provides Unicode as defined
-                    by ECMA-262.
+                    Unicode support, or processed in such a way which provides Unicode support as
+                    defined by ECMA-262.
                 </t>
                 <t>
                     Furthermore, given the high disparity in regular expression constructs support,
@@ -3846,8 +3846,9 @@ https://example.com/schemas/common#/$defs/count/minimum
                             <t>$dynamic* (previously $recursive) no longer use runtime base URI determination</t>
                             <t>Define Compound Schema Documents (bundle) and processing</t>
                             <t>Reference ECMA-262, 11th edition for regular expression support</t>
+                            <t>Regular expression should support unicode</t>
                             <t>Remove media type parameters</t>
-                            <t></t>
+                            <t>Specify Unknown keywords are collected as annotations</t>
                             <t></t>
                         </list>
                     </t>