[Milhouse]

Ok, so the Helix "fix" is only for the treatment of mysql?

No, I'm just making the point that if you are using MySQL (ie. a shared database) then you can't so easily mix builds using different db schemas as one client will be using v89 and the other(s) v88, so updates to v88 won't be seen by v89 and vice versa.

Of course if you understand the consequences and don't mind then sure, you can mix & match clients with different schemas while using MySQL. Eventually when you upgrade your v88 clients to v89 all will be good again.