Actually no action is done, just the warning to remember to do it is proposed (as we was doing on major before)

You're right about what happen if already on 5.2 is something I will add to my checklist. But if upstream release doesn't change, doesn't mean we will not adapt some of the configuration file, and thus update is again a good things to do.

Upstream recommend to do it every time, and one distribution is already doing that, but I'm still really hesitating to do it, it's not our habitude and should be handled by sysadmin, but if you forget, you can get lock out of your device which is bad. I've for the moment 50% good reasons to not do it, and 50% to not Any help or advise is really welcomed :-)