**_Pre Release 6_**: 530-00171-xxx **_Release 6.0_**: 530-00177-xxx **_Release 6.2:_** 530-00183-xxx **_Release 7_**: 530-00194-xxx (adds ADU cal capability, and WAAS) **_Release 8_**: 530-00214-xxx In Dual equipped PFD aircraft, it is essential that the PFDs be within the same software release. If a PFD is comin...