Solc version used (known-bug versions flagged)
Circle USYC's assessment for RD-F-170 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
Ethereum proxy and BSC proxy use Solidity v0.8.17+commit.8df45f5f. ETH YieldCoin implementation, Teller implementation, CrossChainTeller, and RolesAuthorityProxy use v0.8.26+commit.8a97fa7a (Cancun EVM). BSC RolesAuthorityProxy uses v0.8.23+commit.f704f362. Per Etherscan solcbuginfo: v0.8.17 has no active high-severity bugs (StorageWriteRemovalBeforeConditionalTermination was fixed in 0.8.17). v0.8.26 predates TransientStorageClearingHelperCollision (introduced 0.8.28). v0.8.23 is in the clean range. All three versions are safe.
Sources #
- EtherscanYieldCoin Implementation Compiler Version - EtherscanETH YieldCoin impl: v0.8.26+commit.8a97fa7a; ETH proxy: v0.8.17+commit.8df45f5f; BSC proxy: v0.8.17; BSC Entitlements: v0.8.23retrieved 2026-05-16
- BSC RolesAuthorityProxy Compiler Version - BSCScanBSC RolesAuthorityProxy: v0.8.23+commit.f704f362 confirmed verifiedretrieved 2026-05-16
- Solidity Compiler Bug List - EtherscanEtherscan solcbuginfo — v0.8.17 and v0.8.26 have no active high-severity known bugsretrieved 2026-05-16
Methodology #
Identify the Solidity compiler version used for deployed bytecode and flag if it appears on the known-bug list (solc bugs.json or Vyper 0.2.15–0.3.0 range).
See the full factor methodology and distribution across all protocols →