> ## 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 - xReserve - 2026

> 2026 release notes for xReserve

## April 2026

<Update label="2026.04.13">
  Added Arc Testnet as a source chain and domain for xReserve.

  ### Documentation updates

  Updated the following topic to reflect Arc Testnet support:

  * [xReserve Supported Blockchains and Domains](/xreserve/references/supported-blockchains-and-domains)
</Update>

## March 2026

<Update label="2026.03.24">
  Added support for USDCx through xReserve on the Movement mainnet and testnet.

  ### Documentation updates

  Updated the following topics to reflect support for USDCx on Movement:

  * [xReserve Supported Blockchains and Domains](/xreserve/references/supported-blockchains-and-domains)
  * [Quickstart: Deposit USDC into xReserve](/xreserve/tutorials/deposit-usdc-into-xreserve#movement)
</Update>

## February 2026

<Update label="2026.02.27">
  Added support for USDCx through xReserve on the Cardano mainnet and preprod
  testnet.

  ### Documentation updates

  Updated the following topics to reflect support for USDCx on Cardano:

  * [xReserve Supported Blockchains and Domains](/xreserve/references/supported-blockchains-and-domains)
  * [Quickstart: Deposit USDC into xReserve](/xreserve/tutorials/deposit-usdc-into-xreserve#cardano)
</Update>

## January 2026

<Update label="2026.01.27">
  Added support for USDCx through xReserve on the Aleo mainnet and testnet.

  ### Documentation updates

  Updated the following topic to reflect support for USDCx on Aleo:

  * [xReserve Supported Blockchains and Domains](/xreserve/references/supported-blockchains-and-domains)
</Update>

<Update label="2026.01.15">
  ### Documentation additions

  Added the following xReserve topic:

  * [USDC-backed Stablecoin Specification](/xreserve/concepts/usdc-backed-stablecoin-specification)
</Update>