This is a special and big update. And by upgrading your website to the v4.4 it's important to know that:
-You will lose all your Admin panel -> Settings entries, and you will need to setup your website again.
-You will lose all the current internal messages (that were also sent by email address to their receivers)
-If you want to re-activate the ads review (ads approbation) option, all the existing ads will be approved automatically.
-You will need to (uninstall and) re-install all the script's plugins after the upgrade.
-You will lose all the plugins data and settings (except the payment plugins transactions entries).
Changelog:
Added: Full Messaging System (between Sellers & Buyers) added
Added: Allow admins to re-approve the ads on (title or description) modification (If the ads approbation option is enable)
Added: Admin panel: Impersonation feature (Authenticate as your users)
Added: Admin panel: New way to manage Settings
Added: Options to setup the Default Date & Datetime format
Added: Options to customize the theme's style
Added: Options to setup the number of columns for Grid View Listing
Added: Options to setup the Default Distances on the search page
Added: Options to setup the Posts (single page) permalink
Added: Options to Allow/Disallow users to pay the Packages in their country currency
Added: Options to setup the footer (Hide the payment plugins logos, Enter the 'Powered by' info, etc.)
Added: Admin panel: More Options to setup the Homepage Sections
Updated: Admin panel: Advanced filters added (Ads, Users & Payments list)
Updated: Simplemaps.com's SVG Maps updated
Updated: Geonames Database updated (Available for fresh installations)
Updated: Installation process improved
Updated: No longer use async:false in jQuery.ajax() on the ads creation/edition forms (deprecated)
Updated: Admin panel: The sorting orderable columns feature improved
Updated: Many Minor Improvements
Fixed: Bug Fixes