Update 3.3.0 is compatible with WordPress 4.3.1 and includes the following changes:

• New Feature: Upload notification email template
• Added delete buttons to backend file browser
• Show icons in file/category selector tree
• PHP 7 constructor compatibility (and WP 4.3.0)
• Delayed file scanning in sync process for faster syncing
• Better sync progress reporting
• Improved sync performance, reduced server load during sync
• Improved PDF indexing (stability)
• Rescan process can be resumed
• Rescan Tool now rescans cloud files
• Removed FLV player, replaced with HTML5 video player
• Added compatibility for latest CF7
• Fix: More robust file name handling with special characters
• Fix: Also send upload notifications for offline files
• Fixed individual file force download option
• Fix: Attachment uploader disables with front-end upload setting
• Fix: hide attach uploader if front-end uploads disabled
• Fixed sideload issue
• File browser: only show add category if user has permission