wevm/viem viem@2.43.0 on GitHub

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.