Plan a Joomla major-version migration before updating production Print

Quick answer

A major Joomla migration is a project rather than an ordinary maintenance click. Templates, extensions, PHP/database requirements, and historical customizations can need replacement or adaptation.

Before you start

Inventory the current Joomla version, template, extensions, custom code, content, languages, users, and important integrations. Check the current official migration route and technical requirements for each supported step.

Steps

1. Create a restorable files-and-database checkpoint and an isolated working copy. Prevent that copy from sending customer email or triggering production integrations.
2. Classify extensions and templates as compatible, replaceable, removable with approval, or requiring development. Verify vendor guidance rather than treating an automatic pre-update check as a complete guarantee.
3. Follow the documented supported migration path on the copy. Test content, URLs, menus, access levels, forms, structured data, and any business-critical component after each major transition.
4. Prepare the release artifact, live-content reconciliation, redirects where necessary, downtime expectations, and tested recovery procedure. Obtain owner approval for the resulting site and release window.

Verify the result

The migrated copy should pass a written acceptance list and preserve required content and functionality. A successful Administrator login does not prove that every public page and extension works.

Troubleshooting and recovery

If an essential extension has no supported path, compare a replacement or rebuild before committing production. Keep the original recovery checkpoint; do not skip required versions or remove unknown components to force an upgrade.

Related help

• Create and verify a Joomla backup before changing extensions
• Update a Joomla extension with compatibility and rollback checks
• Plan a website hosting migration before changing DNS

Official references

• Joomla migration and updates
• Joomla backup and recovery

Reviewed October 31, 2026. Interfaces, vendor availability, and account features can change. Check your current account before making changes.