Using This Guide
This guide has three main parts:
Prepare to Upgrade: Deployment assessment, upgrade path planning, obtaining upgrade packages, and so on.
Upgrade Firepower Appliances: Describes the actual process of upgrading Firepower appliances, including operating system upgrades where necessary. Includes checklists (see the next topic) and upgrade paths.
Reference: Reference information that helps you plan and execute Firepower upgrades. If you are already familiar with the upgrade procedures, this allows you to quickly answer your most frequently asked questions.