With this release two versions of the driver are provided for Windows;
'PostgreSQL ANSI' which supports single and multibyte applications
through the ANSI ODBC API, and 'PostgreSQL Unicode' which provides
Unicode support through the Unicode ODBC API. Microsoft's Distributed
Transaction Coordinator (MSDTC) is also supported.
On Unix systems, the driver type (ANSI or Unicode) may be selected
via a configure option. It can be compiled with UnixODBC or iODBC.
A new 64 bit version of the driver is also available for Windows, and
includes native SSPI and GSSAPI support, and doesn't require libpq.