The original post of this information was made in the announcement below:
http://support.supremainc.com/discussions/topics/24000006461
Dear Valued Partners,
We would like to announce our test results with DESFire EV2 cards.
Since DESFire EV2 provides backwards compatibility, it can be used with Suprema devices that support EV1 card read.
Hence in BioStar 2 you can use DESFire EV2 cards for CSN, Access on Card, and Secure Credential cards with supported devices. Note that only DES/3DES encryption method is supported.
For a list of 2nd generation devices, refer to the article link.