Deprecated contracts still holding value
Chainlink CCIP'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 #
CCIP v1.0.0 routers were officially deprecated with a published migration deadline (testnet: January 31, 2024; mainnet: March 31, 2024). Migration guidance was published: router interface unchanged (no user token-approval migration required), only addresses changed. No evidence of stuck user funds published by Chainlink or found in community reporting. On-chain balance confirmation of residual value in deprecated v1.0.0 router addresses is not possible in agent scope (specific deprecated addresses not indexed in a single public document; RPC not available). Given CCIP's messaging-rail architecture (no user-deposited collateral or LP positions; tokens transit via lock/mint pools, not the router itself), residual stuck value in old routers is structurally expected near-zero. Scored yellow: deprecation announcement and migration were adequate, but on-chain balance confirmation is outstanding.
Sources #
- URLChainlink CCIP DocumentationCCIP migration context: router interface unchanged during v1.0 to v1.2 migration, only addresses changed; no interface-level user action requiredretrieved 2026-05-16
- Chainlink CCIP Release NotesCCIP release notes documenting v1.0.0 deprecation deadlines: testnet January 31 2024, mainnet March 31 2024, migration to v1.2.0retrieved 2026-05-16
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 →