# NuLink Agent SDK Release Notes

The current version is [0.5.6](https://github.com/NuLink-network/nulink-web-agent-sdk/releases/tag/v0.5.6_4a0b66ca)

## v0.5.6 (2024/02/04):

1. Modify the upload and download process
2. Add an API to retrieve the number of backup nodes
3. Add the empty parameter validation for the API

## v0.5.0 (2023/12/22):

1. add backup node param in approve api.
2. add sendCustomTransaction api.
3. fix login api bug.
4. fixed several known issues.

## v0.2.0 (2023/07/24):

1. Add support for multiple networks.
2. Include batch approval function and corresponding API: batchApprove.
3. Add new APIs: getNetWorkChainId, setNetWorkChainId.
4. Fix login detection errors.
5. Resolve other persistent bugs.

## v0.1.1 (2023/05/15):

1. Introduce functions for connecting, uploading, approving, applying, and downloading files.
2. Resolve configuration issues related to Agent web address.
3. Provide interfaces for obtaining file lists, file details, lists of applied files, and approved files.
4. Include authentication information in backend interface requests.
5. Address known bugs and implemented necessary modification


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