# M-6.0 (Multi-Coin)

The multi-coin firmware M-6.0 includes the following updates:

* Add Solana mode for supporting Solana blockchain, currently can work with Solflare extension.
* Support **Method Selector** for Ethereum transaction based data from [4bytes](https://github.com/ethereum-lists/4bytes). Method Selector will further decode the MethodID from the smart contract to make the transaction safer in another way when the ABI can not be decoded.
* Make some UI and UX changes of the Keystone hardware wallet.\
  1\) "The watch-only wallet" has been renamed to "Software Wallet"\
  2\) The feature of "Import the wallet" has been moved to the tool bar and renamed to "Connect Software wallet"

Download the latest firmware [here](https://keyst.one/firmware).

Tutorial for firmware upgrade: 

{% content-ref url="/pages/-MVz-o9g8Dc-vlyVuAZj" %}
[Firmware Upgrade](/getting-started/firmware-upgrading.md)
{% endcontent-ref %}

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