# Version 2.1 - 2022-05-02 **Please note:** This version utilizing the Substrate framework is still in beta. The following updates/fixes were released to the Creditcoin network: * Improved loan command structure for more seamless partner integration. Created more structure around interest rate declaration of type in terms (whether it is simple or compounding, rate per period, decimal declaration and period). This also extended to a rework and improvement to Register Transfer. * Improved security of Register Address by requiring “proof” of ownership via a signed message. * Established check on nonce when verifying Ethless transfers, and updated error messaging accordingly. * Improved fee structure to correlate with extrinsic weighting, runtime benchmarking and command structure. * Per miner requests, we exposed metrics for monitoring hash rates, and established alerts to monitor RPC nodes. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.creditcoin.org/cc-enterprise/creditcoin-change-log/version-2.1-2022-05-02.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.