WordPress 5.6

WordPress 5.6 added the Twenty Twenty-One default theme, Application Passwords for REST API authentication, and controls for opting into automatic major core updates. It also brought block editor and accessibility refinements, plus initial, explicitly limited compatibility work for PHP 8. Application Passwords let an administrator create and revoke credentials for an external application without sharing the account’s normal password. WooCommerce is a plugin that runs on WordPress, so a WooCommerce store is a WordPress site and its WordPress version matters to it just as much as its WooCommerce version does.

This cycle has reached end of life and no longer receives ongoing core security maintenance. Remaining on it leaves known and later-discovered core vulnerabilities unpatched in this branch, while plugins, themes, browsers, hosting environments, and supported PHP versions increasingly target newer WordPress behavior. Compatibility may appear acceptable until a plugin update, PHP change, payment integration change, or administrative workflow exposes an older API or editor assumption. For WooCommerce sites, the risk includes store-specific integrations, checkout extensions, payment gateways, and operational access, not only the storefront. The longer a site remains on 5.6, the more likely that a direct update will require coordinated changes to plugins, themes, custom code, and hosting configuration.

Plan a staged upgrade to a currently supported WordPress release rather than treating 5.6 as a stable long-term baseline. First inventory the active theme, plugins, must-use plugins, custom code, integrations, scheduled tasks, and the PHP and database versions supplied by hosting. Take tested backups of files and the database, then clone the site into a non-production environment. Update or replace unsupported plugins and themes, test the target WordPress version with the intended PHP version, and verify login, editorial workflows, REST API consumers, caching, forms, search, email, media handling, and any custom integrations. For WooCommerce, additionally test product management, cart and checkout, taxes, shipping, payment and refund flows, customer emails, webhooks, subscriptions or memberships where used, and order synchronization. Schedule the production change with a rollback plan, monitor logs and transactions afterward, and keep core, plugins, themes, and PHP on supported maintenance lines going forward.