On Oct 14, 2011, at 7:16 PM, Andrew Morgan <morgan@xxxxxxxx> wrote: > I finally have some time to work on upgrading our Cyrus Murder > installation from 2.3.16 to 2.4.12. We have 3 backends, 3 frontends, and > a mupdate master, all separate systems. > > When I upgraded from 2.2 to 2.3, I had to upgrade the backends first. > Otherwise, the 2.3 frontends would issue commands that the 2.2 backends > didn't know yet. I see the following note in the install-upgrade guide: > > Upgrading from 2.4.5 > > New config option: suppress_capabilities, which takes a space > separated list of capabilities which will NOT be given in any imap > capability response. This can be used on frontends to not display > capabilities that older backends don't have, so clients don't get confused > > > This leads me to believe that I should upgrade the backends to 2.4 first. > Is that true? Has anyone done a Murder upgrade from 2.3 to 2.4 and can > tell me what order they upgraded the hosts? > Yes, you'll want to upgrade the frontends first and suppress the new capabilities on the frontends that the old backends aren't yet aware of. hth, Dave ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
