Cyclone® V devices support 3.3V for VCCPGM. However the .pin file generated by the Quartus® II software does not show that this is supported.
Currently the .pin file only states 1.8V, 2.5V, or 3.0V as being supported voltages.
This is only a reporting issue and does not affect device functionality.
Resolution The supported voltages for the VCCPGM pin is scheduled to be updated in a future version of the Quartus II software.