This database has information for all major versions from WP 1.2.1 through 5.1.
|4.9||wp-includes/pluggable.php||1858||View in context||filter|
|5.0||wp-includes/pluggable.php||1865||View in context||filter|
|5.1||wp-includes/pluggable.php||1943||View in context||filter|
We find related hooks using word stems. wp_new_user_notification_email_admin has 5 significant word stem(s):
admin. Note that some of the hooks below may not appear in all versions of WP.