Sorry to inform you that it is not possible to do that. As mentioned here, it is necessary for the instances to share the same major release version. Since Confluence 4.x and 3.5.x have a different way to store the content the workaround mentioned will not work as well.
Hope it clarifies your doubt.
Hi team, I’m Avinoam, a product manager on Confluence Cloud, and today I’m really excited to let the Community know that all customers can now try out the new editing experience and see some of the ...
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