What are the things need to be done before applying rollup update 14?????

HI All,

We are in rollup 8, we are ding rollup 14 update next week.

I wanted to know what are the thing i need to take backup.

Should i need to take back up of all these things and let me know if I have left out anything

1. MSCRM_CONFIG, ORAGANIZATION_MSCRM database

2. Export default customizations.

3. CRM server web.cofig

4. Windows registry

Let me know if i am missing anything before applying this rollup update 14 in my production environment.

Thanks