Deprecated contract paused but pause reversible by live admin

Chainlink CCIP's assessment for RD-F-167 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

CCIP v1.0.0 was deprecated March 31, 2024. The old Router is immutable — it cannot be paused or controlled. MCMS does not retain a reversible pause over the deprecated v1.0.0 contracts. Deprecated contracts simply became dormant; admin has no ongoing control over them.

Sources #

Docs
Onchain Architecture - Upgradability (EVM) | Chainlink DocumentationCCIP upgradability docs — Router is intentionally immutable; cannot be modified or pausedretrieved 2026-05-16
Docs
Chainlink CCIP Release NotesChainlink release notes — v1.0.0 deprecation deadline March 31, 2024; Router immutable by designretrieved 2026-05-16

Methodology #

Determine whether a deprecated-and-paused contract's pause state is revertible by a currently-live admin role.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol chainlink-ccip factor RD-F-167 score green collected_at 2026-05-16 01:55:09