Deprecated contracts still holding value

Uniswap (v2 + v3)'s assessment for RD-F-166 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

No contracts formally deprecated by protocol announcement hold >$100K. SwapRouter v1 is engineering-superseded but not formally deprecated — remains on official deployments page. V2 and V3 are both live with $2.74B combined TVL. V2 feeToSetter renouncement is a hardening action, not a deprecation. Combined: green.

Detail #

Searched for formal deprecation announcements by Uniswap Labs for V2 or V3 contracts. No formal deprecation with migration obligation identified. SwapRouter v1 (0xE592427A0AEce92De3Edee1F18E0157C05861564) is described in engineering documentation as superseded by SwapRouter02 and UniversalRouter, but it continues to appear on the official V3 Ethereum deployments page (https://developers.uniswap.org/contracts/v3/reference/deployments/ethereum-deployments). No formal deprecation announcement directing users to migrate. Both V2 and V3 are live and generating fees per DefiLlama. The V2 feeToSetter renouncement to address(0) is a hardening/governance-removal action, not a contract deprecation. Score: green.

Sources #

Docs
Uniswap V3 Ethereum Deployment AddressesV3 Ethereum deployments page — SwapRouter v1 still listed as currentretrieved 2026-05-12
URL
DefiLlama: Uniswap V2 TVL — activeDefiLlama V2 — live and generating feesretrieved 2026-05-12

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 →

rubric_version v1.7.0 protocol uniswap factor RD-F-166 score green collected_at 2026-05-12 10:36:11