After July 2021, the 2.3.x release line no longer received quality updates or user guide updates. PHP 7.3 reached end of support in December 2021, and Adobe Commerce 2.3.x reached end of support in September 2022. We strongly recommend upgrading to Adobe Commerce 2.4.x to help maintain PCI compliance.
Developer Tools
This site contains archived merchant documentation for a version of Adobe Commerce and Magento Open Source that has reached end-of-support.
The documentation available here is intended for historical reference only and is not maintained.
The Adobe Commerce Merchant Documentation for current releases is published on the Adobe Experience League.
Use the Advanced Developer tools to determine the compilation mode during frontend development, create an allow list of IP addresses, display template path hints, and make spot changes to text in the interface of the storefront and Admin.