Dependency tree uses EOL Solidity version
USDD (Decentralized USD)'s assessment for RD-F-174 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
Ethereum ERC-20 uses Solidity 0.6.12 (EOL; current is 0.8.x). No forward-compat patch exists for 0.6.12 — it is unsupported. The contract has no external library dependencies (inline SafeMath). TRON TVM uses its own toolchain outside Solidity's versioning. Yellow: EOL Solidity version on Ethereum deployment, no future security patches will be issued for 0.6.x.
Sources #
- EtherscanUsdd Stablecoin source - Etherscan compiler versionUSDD Ethereum ERC-20 - Solidity v0.6.12 (EOL version)retrieved 2026-05-17
Methodology #
Determine whether the deployed code or its dependencies use an EOL or unsupported Solidity version without a forward-compatibility patch.
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol usdd factor RD-F-174 score yellow collected_at 2026-05-17 11:34:18