4.1 should be backwards compatible with 4.0. So package (Akeeba) should install correctly.

@ZjeeBie Joomla 4.1 is backwards compatible with 4.0.

Which version of Akeeba have you tried to install?

This is nothing to do with Joomla. The problem is that the akeeba backup extension listing on the extension directory and provided by the install link you used is v.8.1.2. This version is not compatible with joomla 4.1 and it is akeeba backup that is telling you that not joomla. The correct version for joomla 4.1 is akeeba backup 9.2 which you can download and install from https://www.akeeba.com/download.html#akeebabackup-joomla

I assume that the problem is that the joomla extension directory only has a single download/install link when it should have 2 or more where there are different releases for different versions of joomla

I assume that the problem is that the joomla extension directory only has a single download/install link when it should have 2 or more where there are different releases for different versions of joomla

Hmm, I thought they had fixed that. But maybe that was wrong.

I just tested it and its definitely not fixed

Am just trying to get someone on Glip who has to do with the JED.

Wil leave it to you @richard67 but this is not a joomla issue per se and can be closed

Richard,
Maybe I can shine a little more light on the issue.
When on the page of JED, downloads are represented by cards. Akeeba’s title directs to their website and version 9. But the card-text redirects to
http://cdn.akeeba.com/updates/pkgakeebacore.xml
And in this file a relation to their version 8 is made. I have further no knowledge of the process or structures behind all this but it just attracted my attention. Hope it helps
Kind regards
@ZjeeBie Jan Baelemans

Op 7 mrt. 2022, om 18:40 heeft Richard Fath @.***> het volgende geschreven:

Am just trying to get someone on Glip who has to do with the JED.

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But the card-text redirects to http://cdn.akeeba.com/updates/pkgakeebacore.xml And in this file a relation to their version 8 is made.

@ZjeeBie I see. Well, that file is in the responsibility of the extensions developer, i.e. in this case Akeeba. Could you report the issue there? https://www.akeeba.com/support.html

Thanks in advance.

Closing as not a core issue.