Just Because you're assigning your tokens doesn’t mean that validators will take control of your coins. They don’t maintain or possess your assets. At any given time a delegator can un-delegate their stake and delegate with other validator. Typical routine maintenance and updates: Keep your node computer software up-to-date https://financefeeds.com/ethereum-price-prediction-eth-to-skyrocket-as-new-payment-giant-set-to-replace-xrp-draws-major-interest/