Keyple Card Calypso Java Lib (2.3.1) is available!

Published on December 22, 2022, this version implements the Calypsonet Terminal Calypso Java API (1.5.0) and therefore supports the specific features of the Calypso Prime Extended cards (confidential session & early mutual authentication).

It also fixes the postponed data management of Increase/Decrease commands for legacy cards.

For more information, please visit the component page.