wp-admin/includes/class-wp-media-list-table.php:561Handles the description column output.
$postWP_Post public function column_desc( $post ) { _deprecated_function( __METHOD__, '6.2.0' ); echo has_excerpt() ? $post->post_excerpt : ''; }Introduced in 4.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-wp-media-list-table.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.