The 1.6 release adds support for applying new remap/calibration to a selected set of existing IIQ files. This will end up replacing calibration data in those files with the new one and allows to apply it post factum.
This minor 1.6.2 release fixes several bugs in applying calibration and recalculating preview offsets and superceeds 1.6. The previous 1.6.x versions are now deprecated and removed.