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Edit File: class-delete-appearance-transients.php

<?php /** * Class Delete_Appearance_Transients * * @package WooCommerce\Payments */ namespace WCPay\Migrations; defined( 'ABSPATH' ) || exit; /** * Class Delete_Appearance_Transients * * Removes stale UPE appearance transients that were previously used to cache * Stripe Elements appearance data. The server-side transient caching mechanism * has been removed to prevent cache poisoning attacks. * * @since 10.6.0 */ class Delete_Appearance_Transients { /** * Checks whether it's worth doing the migration. */ public function maybe_migrate() { $previous_version = get_option( 'woocommerce_woocommerce_payments_version' ); if ( version_compare( '10.6.0', $previous_version, '>' ) ) { $this->migrate(); } } /** * Does the actual migration — deletes all appearance transients. */ private function migrate() { $transient_names = [ 'wcpay_upe_appearance', 'wcpay_upe_add_payment_method_appearance', 'wcpay_wc_blocks_upe_appearance', 'wcpay_upe_bnpl_product_page_appearance', 'wcpay_upe_bnpl_classic_cart_appearance', 'wcpay_upe_bnpl_cart_block_appearance', 'wcpay_upe_appearance_theme', 'wcpay_upe_add_payment_method_appearance_theme', 'wcpay_wc_blocks_upe_appearance_theme', 'wcpay_upe_bnpl_product_page_appearance_theme', 'wcpay_upe_bnpl_classic_cart_appearance_theme', 'wcpay_upe_bnpl_cart_block_appearance_theme', ]; foreach ( $transient_names as $transient ) { delete_transient( $transient ); } } }