Re-deployed to new addresses in last year
Usual (USD0 / bUSD0 / USUAL)'s assessment for RD-F-088 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
Two proxy implementation upgrades documented in trailing 12 months: DaoCollateral (proxy 0xde6e1F680C4816446C8D515989E2358636A38b04) impl upgraded 2024-12-17; SwapperEngine (proxy 0xB969B0d14F7682bAF37ba7c364b351B830a812B2) upgraded 2024-12-17. Additionally, the Sky Vault router was redeployed following the May 2025 exploit (ETA June 3). These are proxy upgrades at existing addresses and a router replacement — material changes to live contracts. A bUSD0 implementation upgrade is also noted (profile flags '2025-12-10' — likely typo for 2024-12-10 or 2025-01-10; code-security-analyst must verify). Scored yellow: proxy upgrades + post-exploit router redeployment are material; code-security-analyst must verify reinitializer guards (F143) and upgrade-path continuity.
Sources #
- EtherscanSwapperEngine — EtherscanSwapperEngine proxy 0xB969B0d14F7682bAF37ba7c364b351B830a812B2 — upgraded 2024-12-17retrieved 2026-05-17
- Usual Blog — Sky Vault Arbitrage Recap (router redeployment)Usual blog action plan — router redeployment ETA before June 3, 2025 (post-exploit router replacement)retrieved 2026-05-17
- DaoCollateral — EtherscanDaoCollateral proxy 0xde6e1F680C4816446C8D515989E2358636A38b04 — impl 0x0eEc861D49f15f585d6bb4301fc4f89bce22af4e, upgraded 2024-12-17retrieved 2026-05-17
Methodology #
Determine whether the protocol retired prior deployed contracts and redeployed to a new address set in the last 12 months.
See the full factor methodology and distribution across all protocols →