* feature: option "Maximum fee": limit fee to a maximum value * feature: option "Exclude Fees For E-Mails": skip total cart fees for a gateway for given E-Mails * added: filter "wc_add_fees_gateway_fee_maximum": change maximum fee value during calculation * added: filter "wc_add_fees_hide_product_panel_options": remove our tab from product metabox settings Open-Library/Payment Gateway Based Fees/Metabox Product/wc_add_fees_hide_product_panel_options.php at main · InoplugsOrganization/Open-Library * added: filter "wc_add_fees_wc_fees_calculated_done_check": skip a second fee calculation (e.g. by WC automatic tax calculation) Open-Library/Payment Gateway Based Fees/Fee Calculation/wc_add_fees_wc_fees_calculated_done_check.php at main · InoplugsOrganization/Open-Library
* fixed: small typo error * fixed: minor styling error in backend product tab fees settings * fixed: Warning: Undefined variable $index in ../classes/class-wc-add-fees.php on line 920
* added: compatibility support for WooCommerce HPOS * cleanup: remove backwards compatibility prior WooCommerce 3.0
