"Bryan White" <bryan@arcamax.com> writes:
> I have two questions: Are there any known instabilties that might have been
> introduced between 6.5.0 and 6.5.3?
No, none that I've heard about.
> What are the chances that upgrading to 7.0 will fix the problems?
Hard to say without knowing what's causing them. However, we definitely
did fix a pile of bugs between 6.5.* and 7.0, so I'd recommend upgrading
as a first step.
regards, tom lane