> For the complete documentation index, see [llms.txt](https://docs.zkbob.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zkbob.com/resources/release-notes/july-13-2023.md).

# July 13, 2023

## Latest Component Releases

* Relayer [v4.2.0](https://github.com/zkBob/zeropool-relayer/releases)
* JS Library [v5.0.0](https://github.com/zkBob/zkbob-client-js/releases/tag/5.0.0)
* Core Library [v1.3.0](https://github.com/zkBob/libzeropool-zkbob/releases/tag/1.3.0)
* UI (private) [v3.0.0](https://github.com/zkBob/zkbob-ui/releases)

## Release Highlights

### ETH pool support on Optimism

The UI was reworked to allow for multiple pools on multiple chains. The first pool to be released is the [ETH pool on Optimism](/zkbob-overview/zkbob-pools/eth-pool-on-optimism.md), where both ETH and WETH can be deposited via different methods.

### Pending deposits display

ETH deposits use a different method for deposit (direct deposits). These can take longer, and pending display was added to provide users with additional information during an ETH deposit.

### Standards support for new token pools

Support was added to allow for new token pools, including support for the upcoming BOB - USDC migration on Polygon. `Permit2` and `TransferWithAuthorization` (aka EIP-3009) standards were implemented.