The Capital Markets and Technology Association (CMTA) has released version 3.1.0 of its Solidity implementation of the CMTAT framework. Designed to support compliant and scalable issuance of financial instruments, the CMTAT Solidity implementation for Ethereum and other EVM chains continues to evolve to improve functionality and interoperability.

Chainlink CCIP Integration

One of the most significant enhancements in v3.1.0 is the explicit support for Chainlink’s Cross-Chain Interoperability Protocol (CCIP). CMTAT tokens can now be registered with CCIP without requiring any modifications to the CMTAT codebase, enabling cross-chain token transfers and expanding the compatibility of tokenized assets across blockchain ecosystems. To support this development, NOX Labs, a web3 development firm and CMTA member, conducted a series of tests and published a collection of Foundry scripts that demonstrate and simplify the deployment of CMTAT tokens integrated with CCIP contracts.

Additional Updates

The new release also introduces greater flexibility in access control management.Access control logic has been moved from internal modules to the base modules, enabling developers and institutions to more easily implement alternative access control systems beyond the default Role-Based Access Control (RBAC). This change allows organizations to easily adopt custom governance or permissioning models by creating a new base module to use a different access control.

In addition, the release adds support for ERC-5679, a standard that defines native minting and burning interfaces. By integrating ERC-5679, the framework ensures clearer, more consistent behavior across different token implementations and improves compatibility with tools and platforms that rely on standardized token issuance and redemption functions.

Finally, this version now uses the latest OpenZeppelin v5.5.0 library, ensuring alignment with the most recent industry-standard security and contract patterns.

With these additions, version 3.1.0 makes CMTAT one of the most complete and robust tokenization framework implementations available today.

The technical development of v3.1.0 was carried out by Taurus and overseen by CMTA's Technical Committee.

Explore the CMTAT Solidity version here: https://github.com/CMTA/CMTAT