Update 4.8 release notes

release-notes.adoc

@@ -41,6 +41,16 @@ The {release-version} release brings streamlined upgrade process, security stabi
 ** Hibernate 6
 ** Wicket 10
 
+* xref:/midpoint/reference/roles-policies/mining/[Role Mining].
+Introduction of anonymous role mining data export. This feature allows users to export relationships between roles, users, and
+organizations while ensuring the privacy and security of exported data.
+The following options are available for exporting anonymized role mining data:
+** Ninja: For configuration details, refer to the
+xref:/midpoint/reference/deployment/ninja/#mining-exportimport[Ninja documentation].
+** Repository object (GUI): For detailed information, see the
+xref:/midpoint/reference/roles-policies/mining/anonymous-data-export/#anonymous-export-of-role-mining-data[Anonymous Export of Role Mining Data documentation].
+
+
 === Miscellaneous Improvements
 
 * TODO