v2.5.0

2.5.0 - 20240910

Features

• Add ERC-1643 (part of ERC-1400) for document management through an optional external contract called DocumentEngine [Add ERC-1643 support #267](#267)
• Externalize the Debt and CreditEvent module to an optional external contract called DebtEngine Add DebtEngine #271
• CMTAT version compatible with UUPS proxy : more gas efficient than Transparent Proxy + no need of a proxy admin contract. See Upgradable Smart Contracts - What is a Smart Contract Proxy Pattern? [Add UUPS proxy support #270](#270)
• Remove flag attribute, present since v2.3.0, which was not really used. [ #266](#266)

Technical

• Change Solidity version to 0.8.27 (latest)
• Change EVM version to Cancun
• Remove truffle from dependencies, replaced by Hardhat. See Consensys Announces the Sunset of Truffle and Ganache and New Hardhat Partnership
• Proxy Factory
  • use create2 with the library Create2 from OpenZeppelin:
• Implement ERC-7201 to manage memory to reduce memory collision when upgrading a proxy to a new implementation. [Use erc-7201 for namespace #272](#272)