Chainlink CCIP Release Notes

Arbitrum Sepolia - 2023-12-15

Chainlink CCIP is publicly available on Arbitrum Sepolia.

There is no change to the router interface, but you must use the new router addresses mentioned in the CCIP v1.2.0 configuration page.
Added support for USDC transfers. USDC transfers are currently supported on the following lanes:
- From Optimism Goerli to Avalanche Fuji.
- From Optimism Goerli to Base Goerli.
- From Avalanche Fuji to Optimism Goerli.
- From Avalanche Fuji to Base Goerli.
- From Base Goerli to Optimism Goerli.
- From Base Goerli to Avalanche Fuji.
Refer to the Supported Networks to get a specific lane's token addresses and rate limits.
We've simplified the message sequencing process in our CCIP message handling by removing the strict sequencing flag from the extraArgs field in CCIP messages.
The gas limit and maximum message data length for CCIP messages have been adjusted on testnets. These changes are detailed in the Service Limits documentation.
To interact with CCIP v1.2.0 , use the @chainlnk/contract-ccip npm package.