Deprecated contracts still holding value
Frax Finance's assessment for RD-F-166 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
Multiple deprecated surfaces confirmed: (1) Frax V1 Pool contracts — explicitly marked 'deprecated in favor of FRAX V2 and later mechanisms' per docs.frax.finance/frax-v1-original/frax-pools; exact on-chain USD balance not confirmed within scope [?] but plausible residual user balances exist. (2) Legacy FXS Timelock (0x8412ebf45bAC1B340BbE8F318b928C466c4E39CA) — superseded by frxGov, admin = EOA; residual contract ownership unclear; governance-admin-analyst must verify. (3) Legacy FRAX stablecoin (now 'Legacy Frax Dollar') — NOT a paused/sunset contract but a co-existing legacy token with migration path to frxUSD; not a deprecated contract holding trapped value in the hazardous sense. Yellow: confirmed deprecated contracts exist, exact residual value not confirmed from on-chain reads for V1 pools, no confirmed >$100K concentrated stuck exposure confirmed within scope.
Sources #
- DocsFrax V1 Pool ABI & Addresses — Frax Finance Docsdocs.frax.finance V1 pools — explicit deprecation notice: 'This pool has been deprecated in favor of FRAX V2 and later mechanisms'retrieved 2026-05-17
- Frax North Star Proposal V1.0 — Frax GovernanceNorth Star Proposal v1.0 — legacy FRAX renamed 'Legacy Frax Dollar'; co-existing migration path, not forced sunsetretrieved 2026-05-17
- Legacy FXS Timelock — EtherscanLegacy FXS Timelock 0x8412ebf45bAC1B340BbE8F318b928C466c4E39CA — superseded pre-frxGov timelock; admin = EOAretrieved 2026-05-17
Methodology #
Determine whether contracts marked deprecated by a protocol announcement still hold >$100K in assets.
See the full factor methodology and distribution across all protocols →