Circle to Reduce Limits for Legacy USDC Cross-Chain Protocol CCTP V1 Starting Oct. 31, Suspend Contracts on Dec. 1

深潮 TechFlow news, Oct. 30, according to The Defiant, Circle plans to gradually reduce burn limits for the legacy Cross-Chain Transfer Protocol CCTP V1 starting Oct. 31, 2026, and suspend related contracts on Dec. 1, after which USDC cross-chain transfers via legacy routes will no longer be possible. The new CCTP (formerly CCTP V2) uses separate contracts and APIs and is not backward compatible; applications, wallets, and bridge services using the legacy version must proactively update their integrations. Circle said it will retain sufficient mint capacity to ensure attested pending transfers are completed before the suspension, but specific limit tiers and interim adjustment dates have not been disclosed.

In addition, the Noble chain will not integrate with the new CCTP; Circle plans to suspend its USDC contracts and remaining cross-chain routes on Jan. 12, 2027. Holders on Noble must withdraw USDC before then. Circle will take a snapshot of remaining balances on the suspension date and begin manual redemptions on Jan. 13. Applicants must meet compliance and security requirements and hold assets in self-custodied wallets.

Source: 深潮 TechFlow