Nuki has a bunch of new adapters coming out of their lock including Oval and Knob cylinders that you can check out. If you have a Nuki Smart Lock + Bridge you can now also use it through SmartThings [RELEASE] Nuki Manager for Nuki Smart Lock(Approved)
Knob- and oval cylinders (coming soon)
The key adapter on the back has been redesigned. As a result, the Nuki Smart Lock 2.0 is now compatible with standard knob and oval cylinders.