Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> writes:
> On 11/29/24 11:15 AM, Igor Korot wrote:
>> Are you saying that the current version can connect even to 9.6.1
>> server? (I have a really old Mac with the 9.6.1 version installed).
> Yes.
Current libpq will probably work with servers back to around 7.0
(whenever we introduced the version-3 wire protocol). We don't
routinely test it against anything older than 9.2, but I tried
current psql against 8.2 (the oldest functional server I have
on this machine) and it basically worked.
regards, tom lane