v2.44.4

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Patch Changes

• #​4245 fcd86e90785b101d5f903ffc15478baa4442fe01 Thanks @​jxom! - Added assertChainId parameter to sendTransaction and sendTransactionSync to optionally skip chain ID assertion.

v2.44.2

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Patch Changes

• #​4229 ffdc0f11cf3d87c91288d5d6242687e20ae15b42 Thanks @​frangio! - Fixed hexToNumber silent error when the value exceeds the safe range.

• #​4227 d235b894009c327145267a48c1739cd865ccf55b Thanks @​tomiir! - Added support for ADI_Chain.

• 51b6bf6d452fbabf7516614e2f0ca976edd3f19a Thanks @​jxom! - Added tempo chain mainnet placeholder.

• #​4211 e5050455f226de77587b0069532e886b520e46c2 Thanks @​akitothemoon! - Added zkXPLA network.

• #​4234 4d6349593f21c37fa2e97945521efc011a1bb350 Thanks @​jxom! - Added support for embeddable Basic authentication on http transport.

v2.44.1

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Patch Changes

• #​4225 9d0a5a0b345d33c5ae396a81a3df87b66e4ee6b0 Thanks @​jxom! - viem/tempo: Bumped gas for feePayer + keyAuthorization tempo transactions.

v2.44.0

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Minor Changes

• #​4201 0268ca88c67c7851ae03d8d41508657f2b62729d Thanks @​jxom! - ### viem/tempo Extension

  Added support for Tempo Moderato testnet.

  • (Breaking): Renamed tempoTestnet → tempoModerato. The old export is deprecated but still available as an alias.
  • (Breaking): Renamed reward.start → reward.distribute: Renamed for distributing rewards (no longer supports streaming).
  • (Breaking): Renamed reward.getTotalPerSecond → reward.getGlobalRewardPerToken: Returns the global reward per token value instead of per-second rate.
  • (Breaking): Renamed reward.watchRewardScheduled → reward.watchRewardDistributed: Watches for reward distributed events.
  • (Breaking): Removed nonce.getNonceKeyCount.
  • (Breaking): Removed nonce.watchActiveKeyCountChanged.
  • (Breaking): Removed amm.watchFeeSwap (FeeSwap event no longer emitted by protocol).
  • (Breaking): OrderPlaced event now includes isFlipOrder and flipTick fields. The FlipOrderPlaced event has been removed and merged into OrderPlaced.
  • (Breaking): Renamed Address.stablecoinExchange → Address.stablecoinDex.
  • (Breaking): Renamed Abis.stablecoinExchange → Abis.stablecoinDex.
  • Added dex.cancelStale action to cancel stale orders from restricted makers.
  • Added salt parameter to token.create.

Patch Changes

• e9967a932db94b62e9bb8fb309865a3104f59788 Thanks @​tmm! - Exported missing types for inference.

• 295bd73bc620f57448d43bcb80acfae3e4562b99 Thanks @​jxom! - Fixed sendTransactionSync timeout propagation.

v2.43.5

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Patch Changes

• #​4203 d4875f4c0ffc191ddb1f11b7acae27e928329bff Thanks @​o-az! - Updated Tempo Devnet chain id to 31318

v2.43.4

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Patch Changes

• #​4194 16b0819efbf535fd8a287921323380c281c697f7 Thanks @​0xRenji! - Fixed getAbiItem for overloaded tuples with additional child tuple components beyond the number of args

• #​4193 61ee0cece16abf3d63ad9f569ca683ea9586fb9c Thanks @​akitothemoon! - Added CpChain network.

• 892ebea16241fd4403c691022297463e2fad2d5b Thanks @​jxom! - Fixed getUserOperationHash calculation for EIP-7702 UserOperations.

v2.43.3

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Patch Changes

• #​4188 0e589b25a209943ea939f6ca6e4c5376c89d8e10 Thanks @​jenpaff! - Fixed tempo formatter for access keys

• 53f280a72534259d2f6c06d411b10b9077dd0bff Thanks @​jxom! - Restored behavior where chain was not passed as a return value of `prepareTransactionRequest.

• 6f0e7c2bb902d0f7eff7ffcc0cf0997be9c15c45 Thanks @​tmm! - Updated tempo chain config

v2.43.2

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Patch Changes

• e3a110394b9775ee2eb4141526b274a5480b25fb Thanks @​jxom! - Updated Ox.

• 5087f50f98b3bd74e5bb9483c7e2c46418395a2d Thanks @​jxom! - Fixed JSON-RPC account formatting for Tempo transactions.

• #​4173 0e8149f9275a6453d52d9847dd02176e7089ce4e Thanks @​sandyup! - Added Apollo mainnet.

• #​4181 cb2bb89abf311eb2de7b506418e28d500087ca91 Thanks @​albertov19! - Updated Moonbeam/Moonriver RPC URLs.

• #​4179 0c10bf7a50b7eabf97cd23c88263122c79f775cd Thanks @​findmytrueself! - Added HPP Mainnet & Sepolia

• #​4180 f983ce9ad4eb4d53fd9d952e7e1cff4053ae7100 Thanks @​BigtoMantraDev! - rename MANTRA DuKong native coin

v2.43.1

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Patch Changes

• 28cc8934f1cb9003addb37be681be902a752fa3c Thanks @​tmm! - Updated internal types for named tuples inference

v2.43.0

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Minor Changes

• #​4107 b423fc17eba4f9f0648f72f5358a8e5ed9d5f092 Thanks @​tmm! - Added experimental named tuple support for contract-related actions and utilities.

• #​4147 734d99d9da4b76f9aa985a800213b4ba581607df Thanks @​jxom! - Added first-class support and extension for Tempo.

  ---

  Attaching a Tempo chain to your client grants your transaction actions with Tempo superpowers like batched calls and external fee payer capabilities.

  import { createClient, http } from "viem";
  import { privateKeyToAccount } from "viem/accounts";
  import { tempoTestnet } from "viem/chains";
  
  const client = createClient({
    account: privateKeyToAccount("0x…"),
    chain: tempoTestnet.extend({
      feeToken: "0x20c00000000000000000000000000000000000fa",
    }),
    transport: http(),
  });
  
  const receipt = client.sendTransactionSync({
    calls: [
      { data: "0x…", to: "0x…" },
      { data: "0x…", to: "0x…" },
      { data: "0x…", to: "0x…" },
    ],
    feePayer: privateKeyToAccount("0x…"),
  });

  You can also use Tempo Actions to call to enshrined protocol features like the Stablecoin Token Factory:

  import { createClient, http } from "viem";
  import { privateKeyToAccount } from "viem/accounts";
  import { tempoTestnet } from "viem/chains";
  import { tempoActions } from "viem/tempo";
  
  const client = createClient({
    account: privateKeyToAccount("0x…"),
    chain: tempoTestnet,
    transport: http(),
  }).extend(tempoActions());
  
  const { receipt, token } = await client.token.createSync({
    currency: "USD",
    name: "My Company USD",
    symbol: "CUSD",
  });

Patch Changes

• #​4168 3ff6c2f19350dcbe49017e2b3d5a2cf761ab9070 Thanks @​albertov19! - Added DataHaven Testnet chain.

• aa19d02951f5af26bdcfb472901d940ba446672b Thanks @​jxom! - Added missing /#PURE/ annotations to chains.

• e0ccf5ba210a14ee17df49db90da2b37aa592222 Thanks @​jxom! - Added support for EntryPoint 0.9 on toSimple7702SmartAccount.

• #​4172 9b7d6734c2ac4b6b26f7284842eb685c92a85e8e Thanks @​richiedunk! - Added Somnia network.

• #​4167 bf53fd1d78de1f5b5658e6d9242a348d1667c565 Thanks @​manuelbarbas! - Added New SKALE Base Chains (Testnet and Mainnet)

• 4f7db6a9e9eacd4152ddf89c84f019e4b93b70f0 Thanks @​jxom! - Added defineChain#verifyHash for chain-specific signature verification.

v2.42.1

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Patch Changes

• #​4162 8f665cdbeae06528b83cdbf9804d621eb0231b82 Thanks @​jxom! - Fixed WebSocket subscriptions being duplicated after reconnection when unwatching and rewatching.

• #​4164 85b4f81fc73bb3217c4ad1e25e75c147ff2aa037 Thanks @​jxom! - Fixed createCursor throwing when bytes.buffer is undefined in React Native environments.

• #​4149 3b91dc2624780eef4798485f3b44ac9e46c69906 Thanks @​vriveraPeersyst! - Added XRPL EVM.

• b01e624f67c3cfa5205dbf09be14f86892529b26 Thanks @​jxom! - Fixed waitForUserOperationReceipt timeout not being respected.

• #​4155 ea6805fd92757cec795d47cd04b24310464508dd Thanks @​sanketsaagar! - Fixed Polygon Amoy and Mainnet explorer API URLs.

• #​4157 8105d1e10a96c1f608ec10ed333433ac766a7615 Thanks @​jxom! - Added blockTimestamp to Log type.

v2.42.0

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Minor Changes

• #​4134 d9d666beeccf748157d1292849f5a0d18768baf7 Thanks @​mikelxc! - Added EntryPoint v0.9 support for Account Abstraction (ERC-4337).

  • Added entryPoint09Abi and entryPoint09Address constants
  • Added '0.9' to EntryPointVersion type
  • Added UserOperation<'0.9'> with new paymasterSignature field for parallelizable paymaster signing
  • Updated getUserOperationHash to support v0.9 (uses EIP-712 typed data like v0.8)
  • Updated toPackedUserOperation to handle paymasterSignature
  • Updated prepareUserOperation type definitions for v0.9

Patch Changes

• #​4145 6104df73f8f38b55dc04174523ade8f25436f6da Thanks @​myronrotter! - Added Taiko Hoodi Testnet.

• #​4144 6e6543861d95f8ebf6167a077dce39f1fe6febfa Thanks @​chawyehsu! - Add Stable Testnet

• #​4137 97cec97451ff88ddaebf3b2a2a10fdb81e28b0da Thanks @​akitothemoon! - Added Henesys network.

• #​4138 cf7bcc86422c32d70023e196dc2a85f6ad690b27 Thanks @​ihooni! - Support preconf for GIWA testnet

v2.41.2

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Patch Changes

• be9879ff69eb9b7526878b18c32ead9eeb9f5335 Thanks @​jxom! - Added preference to use chain-specific prepared transaction nonce.

v2.41.1

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Minor Changes

• fee56f5e9f0f66dc3c6cb52b891e933dde044410 Thanks @​jxom! - Added chain.prepareTransactionRequest config that allows chain-specifc transaction preparation logic.

Patch Changes

• 1bda14ca5dd5d4bdcf0e0a9117ccc34ea7da64c9 Thanks @​jxom! - Added optimization to check if eth_fillTransaction needs to be called.
• e6cfa651b28c2c059f42cd250f7191262d121fbe Thanks @​jxom! - Removed redundant OP Stack gas estimations

v2.40.4

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Patch Changes

• #​3950 f73a2c959ff215856b7b56f60b4093e430d81e44 Thanks @​Kemperino! - Added estimateOperatorFee action for OP Stack chains

• #​4125 a73183f305e9ea5f45a3f3742d110f34501a79ac Thanks @​sandyup! - Added Reactive Lasna Testnet.

v2.40.3

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Patch Changes

• #​4119 9b89137fa523fb0a7ab5afcef477375b6de9a86d Thanks @​jxom! - Fixed an issue where a nonceManager would unexpectedly consume a nonce if eth_fillTransaction is not supported.

v2.40.2

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Patch Changes

• 73f5e468b57862250529be1233c39dee7520df20 Thanks @​jxom! - Added getAction support to verifyMessage and verifyTypedData.

v2.40.1

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Patch Changes

• 6a2013d88b6eedc9420ce3fea86af530842f1787 Thanks @​jxom! - Fixed sendTransactionSync generic.

• 4dca806057cb83152a3f1fbd3df31f730eb93eea Thanks @​jxom! - Added hyperliquid chain.

v2.40.0

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Minor Changes

• #​4098 003b231361f223487aa3e6a67a1e5258e8fe758b Thanks @​jxom! - Hooked up eth_fillTransaction routing to prepareTransactionRequest, to reduce the RPC calls required to prepare a local transaction from 3-4, to 1 (if eth_fillTransaction is supported by the execution node).

• #​4098 003b231361f223487aa3e6a67a1e5258e8fe758b Thanks @​jxom! - Added fillTransaction action for eth_fillTransaction support.

Patch Changes

• #​4069 b46fbe33a45faa9c645fddadfd59d7660b12615c Thanks @​bearpong! - Added url property to request errors.

• #​4109 40132ab1a9dc4583685b7e1a77368cad953f917d Thanks @​keone! - Updated Monad block explorer URL and added WebSocket URLs, Multicall3 contract, second block explorer, and second RPC URL.

• #​4110 90ada93230446875bd2ada289f2b83f4d3a58816 Thanks @​ikautak! - Added passphrase option to mnemonicToAccount.