We're very shortly moving our shop to a new server, and in the process, updating CC from the aged 6.06 (yes, I know...) to the most recent version. My assumption is that the process, simplified, should go more or less as follows:
1. Take backups of existing site.
2. Re-acquaint self with code modifications, and the reasons for them.
3. Install old version of CC on new server.
4. Import site from backups.
5. Re-apply code mods.
6. Ensure site is working and take more backups.
7. Update CC to the latest version.
8. Re-apply code mods.
9. Update plugins.
Am I missing anything crucial?
CC: 6.0.6, Skin: Foundation, Plugins: All In One Shipping, Facebook, PayPal, ProductAddons, SagePay