Enterprise console upgrade - DB on SQL Always on cluster

Hi, We would like to upgrade our Enterprise console from version 5.4 to 5.5.
I understand the databases must be upgraded first, and found the following article community.sophos.com/.../116465 on upgrading the databases in a clustered SQL Server environment.
My question is, is there a separate process / document for upgrading the databases when using Availabilty Groups in SQL?
Do you just connect to the availability group Listener?
Thanks in advance.
Michael