What was the exact version of PostgreSQL where the column name length changed from 31 to 63 characters?

I need to know so that I can handle cases like:

Create table foolongcols(nevermindthefurthermorejustpleadinselfdefense char(5), nevermindthefurthermorejustpleadguilty
char(5)
);

I assume that other object names (table name, function name, etc.) are similarly affected.  Is that correct?