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> For a complete documentation index, see https://docs.0x.org/llms.txt.
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#### New Liquidity Sources

* **Base:** Added Forte.
* **BSC:** Added Lista V3 (Uniswap V3).
* **HyperEVM:** Added BrownFi V3, Funnel (Uniswap V3), HyperTrade (Uniswap V3), Turbo (Uniswap V3), and Upheaval V3 (Uniswap V3).
* **Polygon:** Added QuickSwap V4 (Algebra).
* **Robinhood Chain:** Added Alandale (Velodrome V2), Alandale CL (Algebra), BrownFi V3, Curve, ERC-4626 vaults, and Parity V3 (Uniswap V3).

#### New Features

* **ERC-7597 approvals in Gasless API**: `/gasless/quote` and `/gasless/submit` now return `erc7597Permit` as an `approval.type`, so tokens whose `permit` takes a bytes signature can be approved gaslessly.

#### Bug Fixes

* `/cross-chain/quotes` now returns `400 INPUT_INVALID` naming the offending field instead of `500` when a request parameter is rejected.
* `/cross-chain/status` no longer returns a stale `failure` block alongside `bridge_filled` after a transaction recovers.

#### Breaking Changes

* **Across V4 no longer serves Solana or HyperCore in Cross-Chain API**: Across V4 is no longer quoted for Solana or HyperCore routes. Both chains remain reachable through other bridges. [See supported chains](https://docs.0x.org/docs/introduction/supported-chains).
* **Mayan origin routes removed for Monad in Cross-Chain API**: Monad is no longer quoted as an origin on Mayan Swift, Mayan MCTP, or Mayan FastMCTP. Monad remains available as a destination.