Upgrading from jD3.9 to jD4-{V4}


It is assummed that you have a regular jDownloads 3.9 site that you wish to update to jDownloads 4.0 site.
Further is is assumed that your site is using the most recent version of Joomla 3, which at the time of writing is Joomla! 3.10.11
In the process which follows your site will be updated to the latest Joomla! version 4.

Minimum Requirements

You need to ensure your site meets the minimimum requirements as noted below.
Whilst PHP 8 is not absolutly reqired (yet) most of our testing with jDownloads has been with PHP 8 so we strongly recommend you set your site to PHP 8.
  • PHP 7.2.5 (8.0 recommended)
  • MySQL 5.7+ or equivalent MariaDB level (10.2) - 10.3 prefered
  • Joomla 3.10.11 or newer

Start Joomla update

In Component select Joomla! UpdateCaptcha08
Next click on the Options Button as indicated.update01
And select Joomla Next.
This will show the pre upgrade check

Pre upgrade Check - 1

This shows the results of the pre-upgrade checker.
This is a long display so it is shown in several steps.

The 'yellow' message for the PHP is because Error reporting had been set.

This Shows that the jDownloads 3.9 System Pluging is not compatible with Joomla 4.  So we need to disable it. So select Extensions - Plugins
update check07a
update- chek02

Disable System Plugin

So Disable the jDownloads Systen Plugin.

But leave the Tags Fix Enabled
The final part of the Report is a list of install extensions that are compatible with Joomla 4.Captcha08
Now go back to Joomla UpdateCaptcha08
and click on Live Update Tabupdate-check09

Install Update

We can now Install the Update by clicking on the "Install the Update" as shown in the image opposite.
The process takes a while but the progress is shown as below.
update check12
When the update process completes then there is a message that the site is now at Joomla 4.update-check13

Update jDownloads

The next step is to Download the Latest version of jDownloads 4, which at the time of writing is jDownloads 4.0.10, to your device from the jDownloads site.
At the time of writig only pre release versions are available at the Forum

Now to update jDownloads to the latest jD 4 version, select Extensions from the System Menu - Manage update-check14
Now select the jD component, either the latest pre beta vetsion (com_jdownloads_pre_beta_4_0_x.zip) or the latest release version, downloaded earlier and click on the upload button.

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