​The `application_password_did_authenticate` hook in WordPress allows you to run custom code when an application password is used for authentication

The 'ms_user_row_actions' PHP filter in WordPress allows for customization of user row actions in a multisite network.

The 'filesystem_method' PHP filter in WordPress allows developers to customize the file system method used for core updates and plugin installations. This can improve performance and security for WordPress sites.

The 'post_mime_types' PHP filter in WordPress allows developers to easily manipulate the allowed file types for media uploads.

The 'post_password_expires' PHP filter in WordPress allows developers to customize the expiration time for password-protected posts. This can enhance security and improve user experience.

The 'post_password_required' PHP filter in WordPress allows developers to customize the password protection feature for posts and pages.

The 'get_default_comment_status' PHP filter in WordPress allows developers to customize the default comment status for new posts.

The 'has_post_thumbnail' PHP filter in WordPress is a powerful tool for displaying featured images on your website.

The 'login_form_bottom' PHP filter in WordPress allows developers to add custom content below the login form.