> On Nov 21, 2023, at 9:42 AM, Pete French <p...@twisted.org.uk> wrote: > > I spotted this in the release notes, but am unsure how to now actual do > this. I have two machines running carp, as a failover pair, and I normally > upgrade BACKUP, reboot, switch to MASTER, and do the other and flip back. > > But I dont quite see how to do this from 13 to 14 - my worry is that when the > upgraded machine comes back up, it will just take on MASTER and I will have > two MASTERs. > > I see that it's possible to make the talk the old protocol, but then how do I > move to the new protocol ?
Specify the old protocol in rc.conf on both machines and do the upgrade one at a time. Once both are upgraded, stop pfsync on the standby machine, change the version on the active machine, restart pfsync on the standby machine also with the new version.