I cannot seem to find this information on my own, maybe I am overthinking it.
Is there a system requirements page where I can see the minimum ownCloud server version supported by the latest Desktop Client?
In production environments is not always possible to immediately update to the latest server version, but client devices that update automatically (I’m looking at you, MacOS) may go beyond the last supported client version for a current server version.
That would mean that the server has not been updated for too much time and we all agree on that.
But I cannot say confidently that yes, the latest 2.6.1 MacOS client will work with your 10.2.0 (stable) server version.
Unless 8.1+ servers will work with any 2.2.1+ clients for the foreseeable future.