How do I update WD smart ware, the external hard drive?

jk1725 wrote:

How do I update WD smart ware, the external hard drive?

WD website would be a good place to start...(?)

refer to the developers website; Support/Help/FAQ/known issues/compatibility/updates:

Contact a third party vendor

https://support.apple.com/en-us/HT201777

I recommend using MacOS Disk Utility to manage the drive rather than using the third party software.