This database has information for all major versions from WP 1.2.1 through 6.2.
|6.1||wp-includes/pluggable.php||2175||View in context||filter|
|6.2||wp-includes/pluggable.php||2188||View in context||filter|
We find related hooks using word stems. wp_send_new_user_notification_to_user has 6 significant word stem(s):
user. Note that some of the hooks below may not appear in all versions of WP.