- Changed plugin initialization functionality.
- Added Composer ( dependency manager ) modules and moved some functionality to composer modules ( vendors ).
- Added doing WP-Invoice Settings backup on upgrade to new version. Get information about backup: get_option('wpi_options_backup');
- Moved premium features to separate plugins.
- Cleaned up functionality of plugin.
- Refactored file structure of plugin.
- Refactored 'View All' page.
- Design fixes.
- Fixed conflict with WP-Property plugin.
- Fixed Fatal Error when accessing private Invoices.
- Fixed Warnings and Notices.