Re: upgrading a pair or 13.5 firewall to 14.3

On Monday, February 16th, 2026 at 17:02, Kajetan Staszkiewicz <[email protected]> wrote:

> On 2026-02-13 15:21, Julien Cigar wrote:
> 
> > Hello,
> 
> Hey!
> 
> > I have a pair of firewall (running pf, pfsync, carp, lagg, vlan) which 
> > are still running 13.5-RELEASE. I'd like to upgrade to 14.3-RELEASE and 
> > I was wondering what would be the best procedure as I rememberd that 
> > there are some pfsync protocol changes in 14.3 (which are incompatible 
> > with the one in 13.5) ..?
> > 
> > Can I simply start by upgrading the BACKUP node to 14.3 and update 
> > rc.conf with pfsync_ifconfig="version 1301" and then update the MASTER?
> 
> 
> Yes, this is how this should work. First install/upgrade the backup 
> system, and set the old protocol version. They should sync just fine and 
> you should be able to switch their master/backup roles back and forth. 
> Once you have both systems on FreeBSD 14.3 you can force the 1400 
> version of the protocol on both systems.
> 
> 1400 because there have not been any more changes in the 14.X branch, 
> the next version is 1500 for FreeBSD 15.0.
> 

Thank you!

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