WP All Import WooCommerce Add-On 4.0.1-beta-2.6

bug fix: import sale prices for link all variations don't work properly
bug fix: import order created date doesn't work properly
bug fix: importing orders triggers double emails in some cases

improvement: add new action - wp_all_import_before_variable_product_import
bugfix: update only these attributes option doesn't work in some cases
bugfix: import attributes with characters doesn't work properly
bugfix: duplicate email notifications are sent in some cases when updating orders
bugfix: unable to convert variable products to simple in some cases
bugfix: not possible to import "0" as an attribute value

bugfix: only send order notifications when orders are created or status changes
bugfix: 'any' attributes for non-taxonomy attributes weren't imported correctly
bugfix: variations not updating correctly when using 'link all variations'
bugfix: attributes with characters weren't imported correctly
bugfix: match non-Latin taxonomy attribute names with 'Update only these Attributes, leave the rest alone' option
bugfix: could not import attributes with value 0
improvement: decrease frequency of plugin update checks
improvement: added 'wp_all_import_before_variable_product_import' action