Paramiko 4 Incompatibility with Airflow, SSHHook, and DSSKey

We are aware of an incompatibility between Airflow and the newly released paramiko 4. The only current way to make it work properly is to add paramiko<4 to your requirements.txt. Future versions of Airflow will have this requirement baked into Airflow's dependencies. The effort to make Airflow compatible with paramiko 4 is tracked in this Issue.