• Support Kubernetes 1.18 #53
• Support Plan Latest Version as Prepare Container Tag #61
  Also, do not override tags provided in either the prepare or upgrade container spec.
• Fix Panic On Plan Delete #65
• Die, Flappy Bird, Die #67
  Addresses and issue, #58, resulting in k3os-latest jobs form prior upgrades causing intermittent unavailability. Stale jobs will be deleted with prejudice.
• Support Plan Tolerations #68