The following changes have been made since version since version 3.19.0

New:

• Support the additional "Class D" working voltage defined by ISO/IEC 7816-3:2006/Amd 1:2025. It requires ContactLAB hardware version V1.04.J at least.
• Support smart cards implementing high transmission rates with clock frequency up to 20 MHz.
• Supports 64-bit client applications developed in compiled languages (such as C++, C#, and Java).

Improved:

• Reduction of the rise time in UICC emulator during the transmission of the last bit of a character and the generation of a parity error.

Fix:

• Handle T=1 IFSC and IFSD parameters correctly and independently:
• T=1 IFSC information provided in the ATR is used in T=1 exchanges to fix the size of blocks in transmission, regardless of IFSD value.
• A successfull S(IFS) exchange initiated by the reader correctly updates IFSD value, regardless of IFSC value.
• Fix Trigger:<Event>:Delay internal conversion from nanoseconds to an internal value in clock cycles.
• Update Trigger:<Event>:Delay documentation as its value can only by in the range [0 : 4294967295 (2^32-1)] nanoseconds.