wp-includes/comment-template.php:305Displays the HTML link to the URL of the author of the current comment.
$comment_idint|WP_Commentoptional0function comment_author_link( $comment_id = 0 ) { echo get_comment_author_link( $comment_id );}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.