Can I upload a new version of my iOS app with a different certificate/profile than the previous one?

Question

I have an app in store signed with a distribution certificate/profile. Now I want to upload a new version of the app. But, I've lost the certificates and profiles. My situation is that there is no way I can get them back. I think that the "bundle identifier" should be same as the previous version. So, I have an idea to upload the new version by signing it with a different certificate/profile. Will that be valid? Or I have to use the same certificate which I used in my previous version?

Its not obvious to me. You guys please give me some suggestions. Pardon me if this is a very basic thing one should be knowing already.

Thanks everyone.

Answer 1

Long question, short answer: no problem.