The threshold ECDSA Beta release, being a key part of the Bitcoin Testnet release, has been officially announced!
You can now use threshold ECDSA on the IC with a test key. Please note that the test key may be deleted at some point, so it is not advisable to store any value with this key. The test key of the current deployment is intended solely for development and testing purposes, e.g., to hold bitcoin on Bitcoin Testnet.
Documentation:
Sample dApp:
The team is now working mainly on further performance improvements and another security review as there have been quite some changes since the first one.