Ticket #59387: patch-1.diff

src/wp-includes/kses.php

@@ -2301 +2301 @@
  *              and `z-index` CSS properties.
  * @since 6.3.0 Extended support for `filter` to accept a URL and added support for repeat().
  *              Added support for `box-shadow`.
+ * @since 6.4.0 Added support for `writing-mode`.
  *
  * @param string $css        A string of CSS rules.
  * @param string $deprecated Not used.
@@ -2470 +2471 @@
                         'z-index',
                         'box-shadow',
                         'aspect-ratio',
+                        'writing-mode',
 
                         // Custom CSS properties.
                         '--*',

tests/phpunit/tests/kses.php

@@ -1341 +1341 @@
                                 'css'      => 'grid-template-columns: repeat(4, unsupported(0, 1fr)',
                                 'expected' => '',
                         ),
+                        // Writing mode introduced in 6.4.
+                        array(
+                                'css'      => 'writing-mode: vertical-rl',
+                                'expected' => 'writing-mode: vertical-rl',
+                        ),
                 );
         }