This database has information for all major versions from WP 1.2.1 through 3.5.
|3.4||wp-includes/default-widgets.php||671||View hook in source||filter|
|3.5||wp-includes/default-widgets.php||682||View hook in source||filter|
We find related hooks using word stems. widget_comments_args has 3 significant word stem(s):
args. Note that some of the hooks below may not appear in all versions of WP.