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sh404SEF is a Joomla-3 only extension. It will be/has been discontinued on August 17, 2023.

You can switch from sh404SEF to 4SEF for SEF URLS and 4SEO for an all-in-one Joomla SEO extension, which both run on Joomla 3 and Joomla 4.

Please refer to the sh404SEF FAQ page for more details.

When a new version is available, you should update as quickly as possible, in one of several ways:

Use Joomla! one-click updater

This is the fastest and simplest way. sh404SEF will update through Joomla! updater provided that:

  • you have an active subscription with us
  • you have entered your update key in the appropriate section of sh404SEF configuration

Your update key can be found on your dashboard:

Get update key from your dashboard

You can then copy and paste it into the Updates tab of sh404SEF configuration:

Paste update keys into configuration


Update keys are unique to your account. They'll be the same for all the software you get from us, even if you renew your subscription.


Legacy update keys

In november of 2019, we switched from requiringg a set of 2 keys (Access key and Secret key ) to just one as described above.

  • You do not need to change anything: old key sets will keep working forever.
  • The Secret key is simply not used any more and will be removed automatically in future versions.

If your account is recent - your dashboard only shows one update key - but you use an older version of our software with input fields for 2 keys, please paste your update key into both fields. If one field is empty, old versions of our software will show an alert and won't update.

Download the new version from our site

You can then install it through Joomla! installer, just like you installed the first time.


You don't need to, and should not, remove a previous version before installing a new one.