viem@2.57.14

Release notes

Patch Changes

#5356 51b4392225161440bf29643e2fbced31c35cfa7a Thanks @jxom! - Added Relay.autoSwap, which buys a fill's missing token on the stablecoin DEX and reports the swap as capabilities.autoSwap.

#5356 51b4392225161440bf29643e2fbced31c35cfa7a Thanks @jxom! - Fixed relay previews omitting every balance diff when a moved token is a plain ERC-20, such as a vault share, by reading its standard metadata.

#5356 51b4392225161440bf29643e2fbced31c35cfa7a Thanks @jxom! - Changed Relay.simulate balance diffs and Relay.autoSwap swaps to require request opt-in through capabilities.balanceDiffs: true and capabilities.autoSwap; fee estimates stay default.

#5356 51b4392225161440bf29643e2fbced31c35cfa7a Thanks @jxom! - Changed Relay.simulate to report same-token incoming and outgoing transfers separately, and approval exposure net of allowance the calls consumed.

#5356 51b4392225161440bf29643e2fbced31c35cfa7a Thanks @jxom! - Fixed sponsored Tempo transactions failing with intrinsic gas too low on T14 by reserving gas for the fee payer's signature and fee token.

#5356 51b4392225161440bf29643e2fbced31c35cfa7a Thanks @jxom! - Fixed Tempo request formatting dropping capabilities from fill requests without Tempo-specific fields.