# M-8.8(Multi-Coin)

The multi-coin firmware M-8.8 update includes the following:

* Added support for Russian language
* Added a display password button to reveal characters when entering passphrases/passwords
* Updated the information for various Uniswap smart contract addresses in the built-in ABI library
* Updated the contents under the \[Receive TRON] page when in the Companion App mode
* Supports a deeper detailed level of parsing custom ABI files
* Disabling the function of adding multiple addresses for DOT when in the Companion App mode

Tutorial for firmware upgrade:

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