Hi @Ash ,
yeah that will lead to a problem as it can happen that there are database migrations during a update which will end in a corrupted database, so i would not recommend this 
when you are worried about uptime i would suggest that you move to our LTS release, so updates occur less frequent. while we currently do not have official docker images for the paid tiers for the current LTS we will have them for the next LTS which will land in the beginning of next year
you can request a trial license from our homepage for the specific tier you want to evaluate. a list of tier and the benefits they have can be found here where you can also request the trial license