> For the complete documentation index, see [llms.txt](https://support.keyst.one/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.keyst.one/changelog/keystone-changelog/m-6.10-multi-coin.md).

# M-6.10 (Multi-Coin)

The multi-coin firmware M-6.10 includes the following updates:

1. Supports decoding tuple-type transactions on Solana.
2. Built-in Bored Ape Yacht Club ABI contracts.
3. Fixed non-deterministic signature issues.

Tutorial for firmware upgrade:

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