Unable to run legacy Nextcloud client on MacOS Catalina 10.15.7

[Doctor_Pi]

Nextcloud client installed from package Nextcloud-2.6.5.20200710-legacy.pkg doesn’t run. It gives a notification of Update Check: New Nextcloud version 3.1.3 is available. Please click <a href='https://nextcloud.com/install'>here</a> to download the update.

The only versions available are the legacy package above and version 3.11.0 which doesn’t run on macOS Catalina. Version 3 used to run on macOS Catalina.

[sambilanet]

You might check this discussion:

macOS client 3.10.1 not on Catalina?

I just got offered an update for the macOS client 3.10.1. Before I was on 3.10. all working fine on my 2013 iMac running Catalina (macOS 10.15.7). After the update installation was complete, a popup window said it can not run on my system. why was I offered the update then in the first place? and how can I revert to my previous macOS client version? thanks for your help! [Bildschirmfoto 2023-10-26 um 14.46.40]

[Doctor_Pi]

That discussion was a lifesaver. Thank you!