WooCommerce now defaults newer stores to Cart and Checkout blocks, but gateway, express wallet, and checkout-field extension gaps mean rollback and full-path testing remain part of the move.
A practical guide to WooCommerce scheduled-action backlogs, what they break in store operations, and how to audit WP-Cron, WP-CLI runners, renewals, and webhooks.
For older WooCommerce stores, HPOS is less a checkbox than a migration: plugins, reports, and direct database scripts need testing, sync checks, and a fallback plan.