wp-includes/comment-template.php:900Displays the link to the current post comments.
$deprecatedstringoptional''$deprecated_2stringoptional''function comments_link( $deprecated = '', $deprecated_2 = '' ) { if ( ! empty( $deprecated ) ) { _deprecated_argument( __FUNCTION__, '0.72' ); } if ( ! empty( $deprecated_2 ) ) { _deprecated_argument( __FUNCTION__, '1.3.0' ); } echo esc_url( get_comments_link() );}Introduced in 0.71. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/comment-template.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.