Contact person: Zen Cart Upgrade & Preservation

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Location: J?vea, Spain

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I run several live Zen Cart 1.5.6c shops and I am ready to move them to the newest stable release. All stores carry carefully-tuned custom themes, hand-built plugins/modules, and bespoke code tweaks that cannot be overwritten. Payment gateways and shipping methods must behave exactly as they do today, with no hidden breaks in checkout.

Scope
• Transfer each shop to the latest Zen Cart core while keeping every modified file intact and fully functional.
• Re-integrate my custom themes, plugins, and code changes so the storefronts look and act the same after the upgrade.
• Validate that existing payment and shipping setups process orders flawlessly.
• Document what you touched so future maintenance is straightforward.

I’m undecided about how much of the regression testing I’ll handle myself; let me know how you normally approach test plans and we can divide that work sensibly.

When the upgrade is stable, I’d like to keep you on call for future tweaks, security patches, or troubleshooting, so clean, well-commented work is essential. Familiarity with Git version control, PHP 7+/8, MySQL and the Zen Cart upgrade toolkit will be a big plus.

Deliverables
1. Fully upgraded, working copies of each shop on a staging environment
2. Deployment to production with zero downtime
3. Post-deployment report listing all modified files, database updates, and any recommended next steps

If this fits your expertise, please outline your approach, rough timeline, and milestone checkpoints so we can get started right away." (client-provided description)