After block 85000 there will be a protocol upgrade that will affect the register passport transactions.
Two new fields were added (uint16_t)mdAlg and (std::vector) signedPayload.

    (uint16_t)mdAlg hash algorithm used to digitally sign passport data.
    (std::vector) signedPayload is an ASN1 Object containing no personal information but it may contain a field called signingTime(timestamp from when the Gov. issued the chip) that could be very interesting for future usages.

V0.2.0 clients are incompatible with V0.1.x clients.