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Circle gives legacy USDC apps 95 days before old cross-chain transfer routes stop working

Summary by CryptoSlate
Circle's CCTP V1 deprecation gives developers still using the first version of its Cross-Chain Transfer Protocol (CCTP) 95 days to migrate before the legacy contracts stop processing USDC transfers. The company said CCTP V1 burn limits will begin falling on Oct. 31. A burn limit caps how much USDC can be destroyed on one chain for reminting on another. Circle plans to reduce those limits and transfer capacity through November, then pause the con…
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Key news points: Circle set December 1 as the deadline for stopping V1 contracts from its cross-chain USDC transfer protocol. Burning limits will begin to be reduced on October 31st, leaving integrators with 95 days to migrate to the new standard. Aptos, Noble and Sui are the only chains that depend exclusively on the V1 network and will be without native route when contracts are closed. Circle gave developers still operating on the first versio…

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CryptoSlate broke the news on Friday, August 28, 2026.
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