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trezor-firmware/docs/misc/third-parties.md

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List of third parties

That need to be notified when a protocol breaking change occurs.

Using trezorlib:

This usually requires some code changes in the affected software.

Using HWI

Updating HWI to the latest version should be enough.

Using no Trezor libraries

Using Connect:

See https://github.com/trezor/connect/network/dependents for a full list of projects depending on Connect.

Connect dependencies introduction

Javascript projects that have Connect as a dependency are using the Connect NPM package on version specified in their yarn.lock (or similar). This NPM package is not a complete Connect library, it is a simple layer that deals with opening an iframe and loading the newest Connect from connect.trezor.io.

Such project must have the newest MAJOR version of this NPM package (v8 at the moment). But then the main logic library (dealing with devices etc.) is fetched from connect.trezor.io and is therefore under our control and can be updated easily.

So in a nutshell:

  • If there is a new MAJOR version of Connect we indeed want to notify these parties below.
  • In other cases we do not, we just need to deploy updated Connect before releasing firmwares.

Notable third-parties