Quick question @pierre-gilles, now that we’ve moved to v5 with the v4 tag: do we need to change the v4 tag to v5 in our docker (compose for me) and you’ll only keep v4 as v4?
or do we stay on v4 and continue with v5?
Hi @mutmut 
In your case, since you know what you’re doing, go ahead and switch to v5 
But in general, staying on the v4 tag isn’t a problem, as these two versions are fully backward-compatible, both tags are equivalent, and just point to the latest version of Gladys!