### GDF v2

The original GDF data format had a number of limitations, including 32 bits addressing, which led to the development of a revised version, the so-called GDF v2.

GDF v2 addresses the previous limitations in size or number of elements and provides provisions for new modes, including:

- extra columns in tables
- handling of polarization data
- an extra telescope section

The interested reader will find in "Preparing GILDAS for large datasets II - GILDAS Data Format Version 2" more details about GDF v2.