> 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-firmware-btc-only/b-3.6-btc-only.md).

# B-3.6 (BTC-Only)

BTC-Only firmware B-3.6 includes the updates below:

* Removed connect to Keystone Companion App entry

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