doctl 1.15.0 -> 1.16.0 doctl 1.15.0 -> 1.17.0 doctl 1.15.0 -> 1.18.0 doctl 1.15.0 -> 1.19.0 doctl 1.15.0 -> 1.20.0 doctl 1.15.0 -> 1.20.1 doctl 1.15.0 -> 1.21.0 doctl 1.15.0 -> 1.21.1