wp-includes/class-wp-text-diff-renderer-table.php:166$linestringstring public function contextLine( $line ) { return "<td class='diff-context'><span class='screen-reader-text'>" . /* translators: Hidden accessibility text. */ __( 'Unchanged:' ) . " </span>{$line}</td>"; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-text-diff-renderer-table.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.