> 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/v-1.4.2-multi-coin.md).

# V 1.4.2 (Multi-Coin)

Multi-coin firmware V1.4.2 includes the following updates:

1\. Bug fix regarding crash issues when Keystone scans certain DeFi transactions.

2\. Built-in Zapper contracts’ ABI.