Is it recommended to update sentinel? Does the order in which we update sentinel and verifiers matter? Should we update one before the other?

Is it recommended to update Sentinel?
And does the order in which we update sentinel and verifiers matter? As in should we update one before the other?

Release notes usually specify whether sentinel or vf or both need to be updated. I tend to check my sentinels are functioning/updated (if need be) before I update verifiers.