> For the complete documentation index, see [llms.txt](https://imtoken.gitbook.io/developers/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://imtoken.gitbook.io/developers/products/webview/release-changes.md).

# Release changes

## Breaking Changes <a href="#a2db" id="a2db"></a>

### No longer auto adds patches for web3.js send errors

There is a bug in `web3.js` version `1.3.0` where the send function cannot be found, you can find a discussion of this in the `web3.js` repository: [issue#3790](https://github.com/ChainSafe/web3.js/issues/3790), [pr#3649](https://github.com/ChainSafe/web3.js/pull/3649#issuecomment-695200876), etc. this is usually displayed as the following error log:

```typescript
Uncaught (in promise) TypeError: this.send is not a function
// or
TypeError: this._eip1193Send is not a function. (In 'this._eip1193Send(payload.method, payload.params)', 'this._eip1193Send' is undefined)
```

In previous versions, the imToken App would automatically add a patch to fix bugs from third parties, but this had some side effects and we will remove the automatically applied patch starting with version `2.9.4` of the imToken App.

This is a bug from `web3.js`, so we recommend that you **upgrade** or **downgrade** the `web3.js` package to fix this issue.

### No longer injecting web3.js

Starting in 2021, the **imToken App will no longer inject the `web3.js` API**, so if you are still using such libraries, please package web3.js inside your web app yourself.

MetaMask also stopped injecting web3.js in early 2021. You can also read [this article by MetaMask](https://medium.com/metamask/no-longer-injecting-web3-js-4a899ad6e59e), which explains in detail why web3.js needs to be removed completely.