Wait or revoking an iPhone expiring certificate?

Question

In my iOS Provisioning Portal Current Development Certificates section, the certificate expiry date is Sep 30, 2010. Today is Sep 30, 2010. Should I wait for the certificate to expire and renew? Or should I revoke the existing one and create a new one certificate?

Currently, the Ad Hoc Provisioning Profile has expired. No matter how many times I click the Renew button next to it, the status will become Expired. The means the app in all my beta testers' machines stops running and I cannot send a new version to them before a good Certificate is issued.

Thanks!

Answer 1

You can renew certificates before they expire, and this is typically a good idea. There's really nothing to be gained by letting them go, except (a) if you're not actively using them, you save a few steps and (b) a few days before expiration, next year.

However, for normal use, you just renew them a week or two before they expire.