# M-10.6(Multi-Coin)

The multi-coin firmware M-10.6 the update includes the following:

* Optimized the export logic for BTC XPUB
* Updated logos for Arbitrum & Gnosis chains
* All transaction history on the default wallet will not be visible after accessing the passphrase wallet

Tutorial for firmware upgrade:

{% content-ref url="../../getting-started/firmware-upgrading" %}
[firmware-upgrading](https://support.keyst.one/getting-started/firmware-upgrading)
{% endcontent-ref %}