new features in
3.3.3 version:                     
 [feature] When force_customer_to_choose_country is selected, try to guess customer's country from PS language
                     [fix-payment] Amazon Pay (Checkout v2) v4.0.5 by patworx
                     [fix-payment] zipmoneypayment support
                     [fix] Shipping cost wasn't hidden if 'Force customer to choose country' has been enabled in settings
                     [fix] Better discount_name targeting when adding voucher, to avoid multiple discount_name fields issue
                     [fix-shipping] Packetery (updated support)
                     [fix] Endless loop on shipping method changes when MyParcel module was installed
                     [feature] Added new option - show Save Personal Information button
                     [feature] Customer's Firstname / Lastname added into account block
                     [fix-payment] pm_subscription support
                     [fix-payment] PaypalPlus (German) initialization button
                     [fix] VAT deduction did not work in PS 1.7.7 for customer_id = 0
                     [fix-shipping] omnivaltshipping - pickup point validation
                     [fix-shipping] itellashipping support
                     [fix] email validation on PHP level
                     [fix] arteinvoice SDI/PEC fields translations in checkout form
                     [fix-payment] paypal (plus), v5.4.2 update
                     [fix-payment] a4ppaypalpro support
                     [fix] shipping methods were not updated properly when deleteFromCart ajax method was called
                     [fix-shipping] gmparcellocker module support (selected point validation)
                     [fix] Ps_Facebook isFirstCheckoutStep() error fix
                     [feature] Along with business-type address, now there is also private-type address (for Italy)
                     [fix] support for shipping module custom validation through hookActionValidateStepComplete
                     [fix-shipping] amcpsshipit support
                     [fix] dm_gdpr support
                     [fix] Silent registration didn't work on PS 1.7.7 (due to Customer name validation not allowing empty string anymore)
                     [fix] klarnapayments - wouldn't load payment block under certain circumstances
                     [fix] When force-country is enabled, and no country is selected yet hide states selection
                     [fix-shipping] prestatilldrive module support
                     [fix-payment] ps_checkout module support (popup mode for Paypal and Card payment)
                     [fix] set Customer group as default when converting guest after silent registration
                     [fix-payment] paytpv module support
                     [fix] Paypal express checkout - filter only this payment option during session
                     [fix] Improved dark themes support and CSS color changes
                     [feature] New config option - Force customer to choose carrier
                     [feature] Added no-header class for blocks
                     [fix-payment] Amazonpay integration improvements
                     [fix-payment] pts_stripe module support
                     [fix-payment] fee parsing for cashondeliverywithfee module
                     [fix] T&C link did not work when extra markup was used inside of anchor tag
                     [fix] tax label was visible in cart even when taxes were disabled
                     [fix] cgma module support (Minimal order by customer group)
                     [fix-shipping] Inpostship module support
                     [fix] Dateofdelivery module support
                     [fix] Explicitly hide voucher (default) error - troublesome on some themes