# Switch from Joomla 3 to Joomla 4/5

### Update your website to Joomla 4

AcyMailing is compatible with both Joomla 3 and 4, so this is pretty straight forward:

1. First you need to **update AcyMailing** to its latest version, either by [manually installing it](/setup/installation/install-acymailing.md) or by [using the Joomla extensions updater](/setup/installation/update-acymailing.md).
2. Then **update your website** to Joomla 4 from the menu System => Control panel => Maintenance

For users still having AcyMailing 5, although it should still work for Joomla 4, we strongly recommend to update to the latest AcyMailing version as your data can be migrated.

### Move AcyMailing from a Joomla 3 website to a Joomla 4/5 website

If you need to move your data between two Joomla websites, you can follow these steps:

1. **Update AcyMailing** to its latest version on the origin website, either by [manually installing it](/setup/installation/install-acymailing.md) or by [using the Joomla extensions updater](/setup/installation/update-acymailing.md).
2. Open your origin database, and **export the tables** starting by `xxx_acym_` 
3. **Import these tables** to the new database, then **replace the table prefix** by the new database one
4. [Install AcyMailing](/setup/installation/install-acymailing.md) on the new website
5. On the new website, replace the folder **media/com\_acym/** by the one of the origin website
6. (optional) If you made some custom translations, you can find them in the language/ folder, so copy for example **language/af-ZA/af-ZA.com\_acym\_custom.ini** to the same location on the new website
7. In the "Security" tab of the configuration, advanced part, click the "Check database integrity" button.

Note that these steps also work when moving AcyMailing between two Joomla 3 or two Joomla 4 websites.

If you own a paid version of AcyMailing, you'll also need to:

1. Click the "**Unlink my license**" button in the [License](/setup/configuration/license.md) tab of the old website
2. **Attach the license** in the new website then **activate the "Automated tasks"** option


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