How to fix cms version on Shopify Plus

Steps for Shopify Plus

1. Core platform updates are managed by Shopify automatically.
2. In your Shopify Plus admin, go to Online Store → Themes and apply any available theme updates after duplicating as a backup.
3. Review all installed apps and custom channel integrations for version currency — contact your Shopify Plus Partner or Solutions Engineer for custom storefront (Hydrogen/Oxygen) version reviews.
4. Check your Shopify Scripts and Checkout UI extensions for compatibility with the latest Shopify Checkout version.

What is cms version?

Every online store runs on a content management system (CMS) or ecommerce platform — such as Shopify, WooCommerce, Magento, BigCommerce, or Wix. Each platform releases version updates that fix bugs, patch security holes, and add new features. When a security scanner cannot detect which platform or version your store is running, it usually means the information is hidden (which can be good), outdated, or the platform is self-hosted and unpatched. Keeping your CMS on a current, supported version is one of the most fundamental maintenance tasks for any online store.

Running an outdated or unknown CMS version is one of the leading causes of store hacks, data breaches, and payment fraud — all of which can result in lost customer trust, fines under regulations like GDPR and PCI-DSS, and even having your store blacklisted by Google (which directly destroys organic traffic overnight). Search engines also use site health signals — a hacked or flagged site loses rankings fast and is extremely difficult to recover. On the revenue side, a compromised checkout destroys conversions and can get your payment processor account terminated. Staying on a supported, up-to-date version means you receive security patches as soon as vulnerabilities are discovered, before attackers can exploit them.

See the complete Cms version guide for every platform and the full background.