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Changelog

Stay in touch with new updates and improvements in the Alchemy ecosystem.

June 11, 2026

Networks

  • Kaia mainnet and testnet went live, making both networks publicly available on Alchemy.

Upgrades

June 4, 2026

SDK

  • Added documentation for sending sponsored Solana transactions using the @alchemy/smart-wallets package.

Upgrades

  • Gnosis Chiado: nethermind 1.38.0
  • Gnosis Mainnet: nethermind 1.38.0
  • Injective Mainnet: evm-gateway v1.4.0
  • Mode Sepolia: op-reth v2.2.5, op-node v1.18.2
  • Story Mainnet: story v1.8.0
  • Story Testnet: story v1.7.0
  • Tempo Mainnet: tempo 1.8.1
  • Tempo Moderato: tempo 1.8.1
May 21, 2026

Wallet APIs

  • Added an option to skip the ERC-20 paymaster balance precheck for post-op gas payments when the user operation will credit the sender with the tokens needed to cover gas.
  • Made standalone sponsored delegation generally available, enabling delegation and undelegation without a user operation.
  • Expanded EIP-7702 support in Rundler to additional networks, including Zora Mainnet, Soneium Minato, Celo Sepolia, Cronos Mainnet, Edge, and more.

Upgrades

May 14, 2026

SDK

  • Improved schema validation and error handling in @alchemy/wallet-apis to make integration issues easier to diagnose.
  • Added stricter selector validation to PermissionBuilder to catch invalid permission definitions earlier.
  • Updated the SDK reference docs with complete type information.

Wallet APIs

  • Fixed wallet_getCallsStatus so transaction receipts are filtered to the requested user operation.

Upgrades

May 7, 2026

  • Expanded Pharos Mainnet support to the APSE region to improve regional availability.

April 30, 2026

Updates

  • Added CPI rent prefunding support for Solana transactions in Gas Manager. Use prefundRent: true with alchemy_requestFeePayer when a sponsored transaction may create accounts through a cross-program invocation (CPI) and needs rent covered. Learn more.

Upgrades

April 16, 2026

SDK

  • SDK v5 reference docs are now live. We recommend that aa-sdk users upgrade. @alchemy/wallet-apis is the recommended package for most users, with updated lower-level packages available for integrating directly with viem.
  • Added stricter selector checks in the MAv2 permission builder.

Rundler

  • Fixed an initialization bug with flashblocks on fast block time networks (e.g., Xlayer).

Upgrades

April 9, 2026

Updates

  • Added sponsored EIP-7702 undelegation for enterprise customers via wallet APIs. Learn more.

Upgrades