Here is a list of best practice questions to answer in an upgrade plan that Support can review with you. A couple weeks ahead of an upgrade, please open a case with Support. You'll be asked for an upgrade plan and this article can be used as a basis for your upgrade plan. This is based off of upgrade plans Support has seen in the past that have the most success. An upgrade plan is typically a couple pages long, but sometimes can be detailed down to the smallest detail so that nothing is missed and Support knows what's happening if something goes wrong and troubleshooting is needed.
Timeline should include:
If something goes wrong: