Hi @Kiran Chalasani​ 

Can you elaborate on what do you mean by 'Update DB at notebook'?

If you meant about updating to the latest platform version of Databricks, this action is managed by us. According to our release calendars, your workspace will be updated to the latest version.

You should periodically restart your clusters to incorporate the new changes and updates on the cluster level.

Apart from that, no other action is required at the workspace or notebook level.