Moving from Joomla 3 & moving sites
8 answers. Leave Joomla 3 behind, or move your site to a new server, domain or folder.
- Will my Joomla 3 template still work?
No. Joomla 3 templates don't run on Joomla 4 and later. Pick a new template, or have yours rebuilt for the current version.
Compatibility - How do I move my site to another host?
Back up with Akeeba Backup, upload the backup and Kickstart to the new host, and restore. It moves files and database and updates the settings for you.
- I see "isClient" or "isAdmin" errors after upgrading from Joomla 3
An old extension is still active. Disable it (in the database if the admin won't load), then update or replace it.
FixJoomla 4–5 - I can't log in after moving my site
Clear your browser cookies, empty the session table, and check that Cookie Domain and Cookie Path in Global Configuration are blank or match the new address.
Fix - How do I move from Joomla 3 to Joomla 5 or 6?
Update to Joomla 3.10, check your template and extensions have newer versions, then upgrade step by step: 3.10 → 4.4 → 5.4 → 6. For heavily customised sites, a fresh build is often faster.
- Is my Joomla 3 site still safe?
No. Joomla 3 has had no security fixes since August 2023, so known holes stay open. Plan the move to a supported version.
Security - How do I move my site to a new domain?
Same as moving hosts: back up and restore with Akeeba. Then set up redirects from the old domain so visitors and Google follow.
- How do I move my site from a subfolder to the main domain?
Move all files up one level, then fix the folder paths in configuration.php and RewriteBase in .htaccess. Akeeba Backup can do this for you.
