jetpack_contact_form_forget_ip_addressAllows site owners to not include IP addresses in the saved form response. The IP address is still used as part of spam filtering, if enabled, but it is removed when this filter is set to true before saving to the database and e-mailing the form recipients.
{'jetpack_feature_' . $feature}_enabledFires when a specific Jetpack package feature is initalized using the Config package.
jetpack_sso_disallowed_safe_mode_noticeFilters the disallowed notice for sites in safe mode attempting SSO.
jetpack_sso_invite_new_users_wpcomToggle the ability to invite new users to create a WordPress.com account.
jetpack_package_versionsObtains the package versions.
jetpack_updated_user_tokenFires when the user token gets successfully replaced.
jetpack_register_site_rest_responseFilters the response of jetpack/v4/connection/register endpoint
jetpack_current_user_connection_dataFilters the current user connection data.
jetpack_connection_statusFilters the connection status data.
woocommerce_analytics_initFires after the WooCommerce Analytics package is initialized
Jetpack Developer Resources 