Question 5.2.8 -> 5.2.14 ‘Invalid extension update’

Good for you.

I think I’ve explained where I’m at. I am a volunteer working on a website for a non-profit organisation. I’m not interested in measuring tech penis size.

Seriously, take a chill pill. Life is too short.

An I am a volunteer trying to help you.

You were and I thank you for that, but now you’ve just turned nasty.

I am entitled to be disappointed. That is my feeling. It has nothing to do with you, so don’t take it so personally and go off on a rant about what a great website manager you are. It’s not helpful or productive.

I just wanted to point out with an example that the upgrade should normally go off without a hitch.
And that I therefore think there is something wrong with your Joomla 3 site.
That's why I asked to first make sure you had installed the latest Kunena version on your Joomla 3 site.
I'm really just trying to figure out with you why the upgrade is giving you problems.

Which Kunena version was installed on Joomla 3? This was not mentioned in any post. I only see the possibility to remove Kunena completely and migrate again, provided that at least Kunena 5.1 or 5.2 was installed on Joomla 3!

1. you need all Kunena database tables from the Joomla 3 installation.
2. furthermore create a backup of the folder /media/kunena.
3. create a complete backup of your new website!
4. go to Kunena -> Tools -> Uninstall Kunena in the backend of the new site (it removes Kunena and the associated database tables)
5. import the Kunena tables from the old installation
6. install Kunena 6
7. if everything went well, import the avatars and attachments from /media/kunena