Index: src/wp-admin/includes/theme.php
===================================================================
--- src/wp-admin/includes/theme.php	(revision 51501)
+++ src/wp-admin/includes/theme.php	(working copy)
@@ -298,6 +298,7 @@
  * @since 5.5.0 Added 'Block Editor Patterns', 'Block Editor Styles',
  *              and 'Full Site Editing' features.
  * @since 5.5.0 Added 'Wide Blocks' layout option.
+ * @since 5.8.1 Added 'Template Editing' feature.
  *
  * @param bool $api Optional. Whether try to fetch tags from the WordPress.org API. Defaults to true.
  * @return array Array of features keyed by category with translations keyed by slug.
@@ -334,6 +335,7 @@
 			'full-width-template'   => __( 'Full Width Template' ),
 			'post-formats'          => __( 'Post Formats' ),
 			'sticky-post'           => __( 'Sticky Post' ),
+			'template-editing'      => __( 'Template Editing' ),
 			'theme-options'         => __( 'Theme Options' ),
 		),