Dear Maintainer,

I've connected to a server but am receiving a message "The server version
9.0.2.2- is unsupported! Proceed at your own risk."

This message is confusing, since it doesn't give any clue as to what the client
version is.  The Debian package version, 2.5.1.10973+dfsg-1, is so wildly at
odds with 9.0.2.2 that there doesn't seem a meaningful comparison.  Is this a
protocol version?  Indeed, Internet discussions of same indicate that there's
no meaningful comparison between the two at all, but it looks as if pre-10
servers are obsolete.

Perhaps the client could indicate what server versions it supports, and suggest
a judgement as to whether it's the client or the server that needs an upgrade?

Best,
Conrad

Dear submitter,

as the package owncloud-client has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/969422

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

Please note that the changes have been done on the master archive and
will not propagate to any mirrors until the next dinstall run at the
earliest.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Sean Whitton (the ftpmaster behind the curtain)

...

Please test the new version of owncloud-client available in Debian
experimental and reply to the bug whether this issue is fixed yet.