> ## Documentation Index
> Fetch the complete documentation index at: https://developers.circle.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Release notes - CCTP - 2026

> 2026 release notes for CCTP

## June 2026

<Update label="2026.06.26">
  Added support for Cronos mainnet.

  ### Documentation updates

  Added the Cronos mainnet contract addresses:

  * [Contract addresses](/cctp/references/contract-addresses)
</Update>

<Update label="2026.06.22">
  Added support for Cronos testnet.

  ### Documentation updates

  Updated the following topics to reflect Cronos support:

  * [Contract addresses](/cctp/references/contract-addresses)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
  * [CCTP fees](/cctp/concepts/fees)
  * [Finality and block confirmations](/cctp/concepts/finality-and-block-confirmations)
</Update>

## May 2026

<Update label="2026.05.18">
  Added support for Stellar mainnet.

  ### Documentation additions

  Added the following new topic to reflect Stellar mainnet support:

  * [Transfer USDC on Stellar](/stablecoins/quickstart-transfer-usdc-stellar)

  ### Documentation updates

  Updated the following topics to reflect Stellar mainnet support:

  * [CCTP Stellar contracts and interfaces](/cctp/references/stellar-contracts)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
</Update>

<Update label="2026.05.06">
  Added support for Injective mainnet.

  ### Documentation updates

  Updated the following topics to reflect Injective mainnet support:

  * [Contract Addresses: Mainnet](/cctp/references/contract-addresses#mainnet-contract-addresses)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
  * [Finality and block confirmations](/cctp/concepts/finality-and-block-confirmations)
</Update>

<Update label="2026.05.05">
  Updated Arc quickstarts to include a Forwarding Service branch.

  ### Documentation updates

  Updated the following topics:

  * [Transfer USDC from Ethereum to Arc](/cctp/quickstarts/transfer-usdc-ethereum-to-arc)
  * [Transfer USDC from Solana to Arc](/cctp/quickstarts/transfer-usdc-solana-to-arc)
</Update>

## April 2026

<Update label="2026.04.15">
  Added support for Pharos mainnet.

  ### Documentation updates

  Updated the following topics to reflect Pharos mainnet support:

  * [CCTP fees](/cctp/concepts/fees)
  * [Finality and block confirmations](/cctp/concepts/finality-and-block-confirmations)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
  * [Contract Addresses: Mainnet](/cctp/references/contract-addresses#mainnet-contract-addresses)
</Update>

<Update label="2026.04.06">
  Added support for Stellar testnet.

  ### Documentation additions

  Added the following new topics to reflect Stellar testnet support:

  * [CCTP on Stellar](/cctp/references/stellar)
  * [CCTP Stellar contracts and interfaces](/cctp/references/stellar-contracts)
  * [Transfer USDC to and from Stellar](/cctp/quickstarts/transfer-usdc-stellar-arc)

  ### Documentation updates

  Updated the following topics to reflect Stellar testnet support:

  * [Contract Addresses: Testnet](/cctp/references/contract-addresses#testnet-contract-addresses)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
</Update>

## March 2026

<Update label="2026.03.17">
  Added support for Injective Testnet.

  ### Documentation updates

  Updated the following topics to reflect Injective Testnet support:

  * [Contract Addresses: Testnet](/cctp/references/contract-addresses#testnet-contract-addresses)
  * [Finality and block confirmations](/cctp/concepts/finality-and-block-confirmations)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
</Update>

<Update label="2026.03.10">
  Added support for Morph mainnet.

  ### Documentation updates

  Updated the following topics to reflect Morph mainnet support:

  * [Contract Addresses: Mainnet](/cctp/references/contract-addresses#mainnet-contract-addresses)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
  * [Finality and block confirmations](/cctp/concepts/finality-and-block-confirmations)
  * [Technical Guide: Fees](/cctp/references/technical-guide#fees)
</Update>

<Update label="2026.03.10">
  Added support for EDGE mainnet.

  ### Documentation updates

  Updated the following topics to reflect EDGE mainnet support:

  * [Contract Addresses: Mainnet](/cctp/references/contract-addresses#mainnet-contract-addresses)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
  * [Finality and block confirmations](/cctp/concepts/finality-and-block-confirmations)
  * [Technical Guide: Fees](/cctp/references/technical-guide#fees)
</Update>

## February 2026

<Update label="2026.02.26">
  Added support for Morph Hoodi Testnet.

  ### Documentation updates

  Updated the following topics to reflect Morph Hoodi Testnet support:

  * [Contract Addresses: Testnet](/cctp/references/contract-addresses#testnet-contract-addresses)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
</Update>

<Update label="2026.02.XX">
  Updated HyperCore CCTP transfer how-tos. Fixed signing parameters, contract
  addresses, fee calculations, and modernized code examples.

  ### Documentation updates

  Updated the following topics:

  * [Withdraw USDC from HyperCore to EVM chains](/cctp/howtos/withdraw-usdc-from-hypercore-to-evm)
  * [Withdraw USDC from HyperCore to HyperEVM](/cctp/howtos/withdraw-usdc-from-hypercore-to-hyperevm)
  * [Transfer USDC from Ethereum to HyperCore](/cctp/howtos/transfer-usdc-from-ethereum-to-hypercore)
  * [Transfer USDC from Solana to HyperCore](/cctp/howtos/transfer-usdc-from-solana-to-hypercore)
  * [Transfer USDC from Arbitrum to HyperCore](/cctp/howtos/transfer-usdc-from-arbitrum-to-hypercore)
  * [Transfer USDC from HyperEVM to HyperCore](/cctp/howtos/transfer-usdc-from-hyperevm-to-hypercore)
  * [Transfer USDC with the Forwarding Service](/cctp/howtos/transfer-usdc-with-forwarding-service)
  * [CCTP fees](/cctp/concepts/fees)
</Update>

<Update label="2026.02.09">
  Added support for EDGE testnet.

  ### Documentation updates

  Updated the following topics to reflect EDGE testnet support:

  * [Contract addresses](/cctp/references/contract-addresses)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
</Update>

## January 2026

<Update label="2026.01.22">
  Added support for the Circle Forwarding Service. The following new topics were
  created:

  ### Documentation additions

  * [Circle Forwarding Service](/cctp/concepts/forwarding-service)
  * [Transfer USDC with the Forwarding Service](/cctp/howtos/transfer-usdc-with-forwarding-service)

  ### Documentation updates

  * Updated the
    [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
    topic to reflect the new Forwarding Service support.
</Update>

<Update label="2026.01.12">
  ### Documentation updates

  Complete rewrite of the [CCTP documentation](/cctp) to focus on what you can
  build with CCTP. Emphasized [Bridge Kit](https://docs.arc.io/app-kit/bridge) as
  the easiest and preferred way to build with CCTP. Removed or reorganized
  sections to make the documentation more focused and easier to navigate. Updated
  the information architecture of the CCTP topics to be focused on the developer
  experience. Added functional Solana examples.

  The following topics were added or updated:

  * [CCTP overview](/cctp)
  * [Supported blockchains and domains](/cctp/concepts/supported-chains-and-domains)
  * [Finality and block confirmations](/cctp/concepts/finality-and-block-confirmations)
  * [Transfer USDC from Ethereum to Arc](/cctp/quickstarts/transfer-usdc-ethereum-to-arc)
  * [Transfer USDC from Solana to Arc](/cctp/quickstarts/transfer-usdc-solana-to-arc)
  * [Transfer fees](/cctp/concepts/fees)
  * [Fast transfer allowance](/cctp/concepts/fast-transfer-allowance)
  * [Get Transfer Fee](/cctp/howtos/get-transfer-fee)
  * [Get Fast Transfer Allowance](/cctp/howtos/get-fast-transfer-allowance)
  * [Troubleshoot Transfers](/cctp/howtos/troubleshoot-transfers)
  * [Resolve Stuck Attestation](/cctp/howtos/resolve-stuck-attestation)
  * [Retry Failed Mint](/cctp/howtos/retry-failed-mint)
  * [Technical guide](/cctp/references/technical-guide)
  * [Contract addresses](/cctp/references/contract-addresses)
  * [Attestation verification](/cctp/references/attestation-verification)
  * [Contract interfaces](/cctp/references/contract-interfaces)
  * [Solana Programs](/cctp/references/solana-programs)
  * [Starknet Contracts](/cctp/references/starknet-contracts)
</Update>

<Update label="2026.01.08">
  Updated the [table of CCTP fees](/cctp/technical-guide#fees) to reflect the new
  finality-indexed pricing model.
</Update>