The version numbering v4.21.0701 indicates a build released on (or a variation close to it, as dating in ChipGenius releases can sometimes refer to the internal database compilation date).
: Added flash memory chip capacity recognition for single crystals ≥is greater than or equal to chipgenius v4.21.0701
Identifying internal components is the first step in several technical processes: ChipGenius v4.21.0701 (2021-07-01) by hit00 - USBDev.ru The version numbering v4