Is it possible to move from 5.3.0 to 5.3.4 as a rolling upgrade?
We have 1 composer Server and 3 connection servers
Our pools are large with a bunch of spare machines so there is not an issue with the composer server being down for 15 - 30 min.
My concern is on the connection sever side. Is it safe to upgrade those one at a time leaving the others online servicing requests?
