Please clarify the state of CTAP2 support

[mimi89999]

Hello,

The readme states that:

CTAP2 support is forthcoming, with work being done in the unstable ctap2 branch.

However the current active branch is ctap2-2021. Could you please clarify the current status of CTAP2 support?

[msirringhaus]

On branch ctap2-2021, CTAP2.0 is more or less fully supported, as well as quite a bit of 2.1 (there are a couple of still open PRs regarding 2.1).