Hi I am going to update certificate for F5.
The below is steps:
System ›› File Management : SSL Certificate List ›› click: abc.yahoo.com >> import(at bottom) >> Choose File >> click: Import
After these steps,
the certificate will be updated(new certificate would overwrite the old certificate). so we do not need to delete the old certificate.
the original key remain the same as before and still can work with the new certificate.
Any expert can confirm this? Thank you