KEYCLOAK-2482

Themes doesn't support patching

docbook/auth-server-docs/reference/en/en-US/modules/MigrationFromOlderVersions.xml

@@ -98,6 +98,14 @@
         <title>Version specific migration</title>
         <section>
             <title>Migrating to 1.9.0</title>
+            <simplesect>
+                <title>Themes and providers directory moved</title>
+                <para>
+                    We've moved the themes and providers directories from <literal>standalone/configuration/themes</literal> and <literal>standalone/configuration/providers</literal>
+                    to <literal>themes</literal> and <literal>providers</literal> respectively. If you have added custom themes and providers you need
+                    to move them to the new location. You also need to update <literal>keycloak-server.json</literal> as it's changed due to this.
+                </para>
+            </simplesect>
             <simplesect>
                 <title>Adapter Subsystems only bring in dependencies if keycloak is on</title>
                 <para>