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# @cosmjs/cosmwasm-stargate
[![npm version](https://img.shields.io/npm/v/@cosmjs/cosmwasm-stargate.svg)](https://www.npmjs.com/package/@cosmjs/cosmwasm-stargate)
An SDK to build CosmWasm clients.
## Compatibility
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| CosmWasm | x/wasm | @cosmjs/cosmwasm-stargate |
| --------------- | --------- | ------------------------- |
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| 0.16-1.0.0-beta | 0.21-0.23 | `^0.28.0` |
| 0.16-1.0.0-beta | 0.21-0.23 | `^0.27.0` |
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| 0.16-1.0.0-beta | 0.18-0.20 | `^0.26.0` |
| 0.14 | 0.16 | `^0.25.0` |
| 0.13 | 0.14-0.15 | `^0.24.0` |
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## Development
Updating Hackatom development contract in `src/testdata/contract.json`:
```sh
cd packages/cosmwasm-stargate
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export HACKATOM_URL=https://github.com/CosmWasm/cosmwasm/releases/download/v1.0.0-beta/hackatom.wasm
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echo "{\"// source\": \"$HACKATOM_URL\", \"data\": \"$(curl -sS --location $HACKATOM_URL | base64 | tr -d '[:space:]')\" }" | jq > src/testdata/contract.json
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```
## License
This package is part of the cosmjs repository, licensed under the Apache License
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2.0 (see [NOTICE](https://github.com/cosmos/cosmjs/blob/main/NOTICE) and
[LICENSE](https://github.com/cosmos/cosmjs/blob/main/LICENSE)).