There are custom CRW 2.x CheCluster property, which could be critical for customers, e.g.:

server:
    customCheProperties:
      CHE_INFRA_KUBERNETES_WORKSPACE_START_TIMEOUT_MIN: '10'
      CHE_INFRA_KUBERNETES_WORKSPACE__UNRECOVERABLE__EVENTS: 'Failed Scheduling,Failed to pull image'
      CHE_LIMITS_USER_WORKSPACES_RUN_COUNT: '-1'
      CHE_LIMITS_WORKSPACE_IDLE_TIMEOUT: '900000'

They are not translated into DS cheCluser properties during migration from CRW to DS 3.0.
E.g. CHE_LIMITS_USER_WORKSPACES_RUN_COUNT: '-1' could be translated to "runningLimit" property to allow several workspaces run simultaneously:

Note: "devWorkspace: runningLimit: -1" is not supported.