What versions of PostgreSQL are supported by the driver?
Versions prior to 0.4 of the driver support versions 6.0 and earlier of Postgres. Version 0.5 was a development release, and was only distributed to those who requested it. Versions 0.6 and later supports 6.1.1 and later of PostgreSQL. Although version 0.4 will work with postgresql 6.1.1, it supports only unauthenticated connections. Password authentication was introduced in version 0.6.