In Joomla! 2.5.28 you can go to Extension Manager → Update tab and click Find Updates which will add a tooltip in the Version column, under the Manage tab, giving some compatibility information from the backend. This functionality only supports extensions that update via the Extension Manager Update tab.
How do I migrate my Joomla site to another version?
Joomla! 2.5.28 can only be migrated in two steps. First migrate to version 3.5.1. Then upgrade from version 3.5.1 to the latest 3.x version using the one-click installer. The following are step by step instructions to migrate your 2.5.x site to Joomla! 3.x.
What is a mini-migration from Joomla?
The migration from Joomla! 2.5 to 3.x is considered a mini-migration. This is because the Joomla! core extensions will upgrade with a “one-click” upgrade via the Joomla! Update component in the backend administrator side of Joomla. Many third-party extensions are a one-click upgrade too.
In Joomla! 3.10.x you can go to Extension Manager → Update tab and click Find Updates which will add a tooltip in the Version column, under the Manage tab, giving some compatibility information from the backend. This functionality only supports extensions that update via the Extension Manager Update tab.
How do I upgrade my Joomla Extensions?
Update component in the backend administrator side of Joomla. Many third-party extensions are a one-click upgrade too. Some are not. You need to look at each one and determine what path the extension needs to follow to get from 3.10 to 4.x.
Why is my migration from Joomla so complex?
Very complex migrations will likely be a result of installed third-party extensions. You are encouraged to contact the developers of third-party extensions installed on your Joomla site for their suggested path to migrate their extensions. The migration from Joomla! 3.10.x to 4.x is considered a mini-migration.
What does “missing compatibility tag” mean in Joomla 4?
These tags generally tell a true story if they say No or Yes. If they say “Missing Compatibility Tag” it means that the extension developer didn’t use a tag in their extension so we don’t know if it is or isn’t compatible with Joomla 4. Talk to the developer to verify.
