Re: [HACKERS] PostgreSQL - Weak DH group

Heikki Linnakangas <hlinnaka@iki.fi> writes:
> I don't think this can be backpatched. It changes the default DH 
> parameters from 1024 bits to 2048 bits. That's a good thing for 
> security, but older clients might not support it, and would refuse to 
> connect or would fall back to something less secure.

Do we have any hard information about which versions of which clients
might not support that?  (In particular I'm wondering if any still exist
in the wild.)
        regards, tom lane