Before upgrading, you need to validate that your appliances are running the latest hotfix. The most recent Hotfix
list for each firmware version as of the release of this document is shown below. Additional hotfixes may be
released in the future; access the corresponding Release Notes to see the most up-to-date hotfix
recommendations. To access the Release Notes, log in to MySonicWall account > Resources & Support >
Download Center and select the corresponding Release Notes.