Storage-layout collision risk across upgrades

SUNSwap (sun.io)'s assessment for RD-F-142 — scored not_applicable on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

V1/V2/V3 factories and pool contracts are immutable (no proxy, no upgrade path). V4 PoolManager also appears non-upgradeable (NoDelegateCall.sol prevents delegatecall). No upgrade path exists, so storage layout collision risk is not applicable by construction.

Sources #

GitHub
SUNSwap V4 — NoDelegateCall, no proxy upgradesunswap-v4-core NoDelegateCall.sol: prevents delegatecall; no proxy pattern identified in V3 or V4retrieved 2026-05-17

Methodology #

Determine whether the OZ upgrades-plugin or manual review flags a storage-layout collision risk between implementation versions.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol sunswap factor RD-F-142 score not_applicable collected_at 2026-05-17 14:37:31