Hello ! We are planning an upgrade to Cyrus 2.3.7 Currently, we have some servers, running different versions of Cyrus mail : - mupdate running Cyrus v2.1.18 - 2 frontends running Cyrus v2.1.18, others frontends running v2.2.12 - All our backends are running Cyrus v 2.2.12 Our goal is to upgrade all servers to Cyrus 2.3.7 (version provided by Redhat), but I have pressure to install some bakends at first, then after, upgrade the others servers. Of course, I would prefer if these new backends could use Cyrus 2.3.7 So my question is : Do backends running Cyrus v2.3 work with an mupdate server running Cyrus 2.1 ? Until now, as a test, I installed a frontend running 2.3.7 and it seems to work fine with our mupdate server (but I didn't make intensive tests). But, before reconfiguring this server as a backend, I did a ctl_mboxlist -d (dump Cyrus database) and realized that the output doesn't have the same format as for version 2.2.12 : It seems to have an extra field (probably the mailbox type flags ?). So, since I don't really have a true environnement for testing, I'm less willing to insert a new backend running Cyrus 2.3 So my question remains : Do someone knows if a Cyrus backend v2.3 can run fine with a Cyrus mupdate server running version 2.1 ? Thanks for your help. -- Steeve Gagnon Courriel : Steeve.Gagnon@xxxxxxxxxxxxxx Tél. : (819) 821-8000 poste 62495 Fax. : (819) 821-8045 ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html