Elementor Pro 3.21.0

Fix: Lightbox dynamic tag crashes the editor
New: Added ACF File Dynamic tag to support text controls.
Tweak: Added option to hide item count bubble when cart is empty in Menu Cart widget (#6223)
Tweak: Added Actions group for Lightbox and Contact URL tags
Tweak: Added filter elementor_pro/dynamic_tags/shortcode/should_escape to avoid escaping in Shortcode dynamic tag
Tweak: MailPoet3 integration allow Subscriber to to subscribe to multiple lists
Tweak: Added front-end max file size validation for upload fields
Fix: Template widget panel not showing the selected template (#6271)
Fix: Conflict between ACF with Safari browser on Select option in Dynamic tag
Fix: Add post classes only for the Single template
Fix: Set document type as not editable for unsupported document like Global widget
Fix: Avoid duplicate query for current WC product query
Fix: Product Archive showing oldest products instead of latest
Fix: CSS reset in Posts widget using cards skin

* New: Introducing Custom Attributes
* New: Added evergreen option for Countdown widget
* New: Added expire actions option for Countdown widget
* New: Introducing Reviews widget
* New: Introducing Sitemap widget
* New: Added Request parameter dynamic tag
* New: Added Shortcode dynamic tag
* New: Added Image and Video Lightbox dynamic tag
* New: Added Contact URL dynamic tag
* New: Added Featured Image Data dynamic tag
* New: Added default value to each field in the Form widget
* New: Added "Any Child Of" condition to template conditions
* New: Added "In Child" condition to template conditions
* Tweak: Added Form Redirect URL with form values
* Tweak: Added default post classes to template wrapper
* Tweak: Better labels for terms in Query control
* Tweak: Renamed "Child Of" templates condition to "Direct Child Of"
* Tweak: Added `elementor/theme/get_location_templates/condition_sub_id` filter hook to allow template condition translations
* Tweak: Load the Template Library widget via Ajax for better performance
* Tweak: Added 404 page title to page title dynamic tag
* Fix: Menu Cart Toggle has # URL link
* Fix: Alignment issue in Nav Menu widget
* Fix: Avoid potential security risk in forms
* Fix: Template By Author condition conflicts with 404 page
* Fix: Restored WC Product Content widget in Single Product template
* Fix: Theme Builder Preview URLs for date archives and 404 pages
* Fix: Highlight active menu anchor items only when scrolled into view
* Fix: Carousel Pagination Progress style to support new Swiper version

Updated the Elementor free plugin.
In this case you can update only the free version