handling snapshot installation in production environment

Hi Misc,

we have to run 6.6 snapshot on one of our firewall clusters to get in
touch with the new aggr(4) driver. This driver seems to work great
whith 6.6 snapshot on a dell pe 470 with intel X710 based quadport
sfp+ nics doing LACP.

We had serious problems with the trunk(4) driver on OpenBSD 6.5 stable
which I discribed in the thread "Dell PE R740, Intel X710 QuadPort &
LACP not working".

I am new in running snapshots in production environments. Our goal is
to run the 6.6 snapshot till 6.6 will be released.

The sysupgrade tool is a nice way to install the newest snapshot, never
had a problem. But what is the correct way to install a stable release
on snapshot? Using the standard bsd.rd upgrade way?

Furthermore I'm not sure which snapshot should I run. Almost every day
there will be a fresh one. Perhaps is there a moment/date where a
freeze of the code base will be done which reflects the 6.6 release?

Thanks.