Renewing Development & Distribution Certificates - Should I use the same CSR for both?

Question

I need to renew my Development & Distribution Certificates. It's expiring soon and I'm a bit worried doing so before being 100% sure I'm doing the right thing. (there are 20 apps on the app store attached to those Certificates ) Any way, I've read a few guides online and couldn't find an answer for that, after I request a new CSR from my keychain, should I use the same certSigningRequest file bor both Development & Distribution or should I create a new one before each one?

If I didn't save the CSR from last year, will I need to upload new pems file to gain back push notifications on my apps?

Answer 1

Yes you can. There's nothing wrong with that, I do it all the time. In fact, keep your CSR so you can use it in the future and save yourself some effort.

Answer 2

Yes, you are using only one CSR and when your certificate is approved in Provisioning portal you are creating Distribution and Development certificates.

After that you can always create new user with different privileges and different certificate but why bother?