My store is running on PrestaShop 1.7.8.3, and I must move to 1.7.8.11 to eliminate the latest security vulnerabilities. Several custom modules power key checkout and inventory functions, so I cannot afford any downtime or data loss. What I need from you: • Create a full backup of files and database before touching production. • Set up a staging copy, run the core upgrade, and verify that every custom module still works. • Keep customer accounts, order history, and all product details exactly as they are. • Once tests are clean, deploy the upgrade to live and run a final health check. I expect clear communication on progress, immediate flagging of any module conflicts, and rollback capability if something fails. If you have a proven track record with PrestaShop upgrades and understand how to safeguard critical data, let’s get started right away.