Prerequisites

1. Take a snapshot of your pfSense VM before starting this process.  This way you can easily roll back changes.

If you are a Proxmox user, you will need to open a support ticket requesting a backup be taken before you proceed with any further steps.

2. Download your pfSense configuration via the Web GUI.  This is located under Diagnostics -> Backup & Restore.  

3. Go to System -> Package Manager and take note of all packages listed.  If there are issues you can re install packages after the upgrade.

Upgrading pfSense from CLI

1. Open the pfSense firewall from Console.

2. From the pfSense main menu, Navigate to the Shell.

3. Enter the command certctl rehash

4. Enter the command exit

5. From the pfSense main menu, do Update from Console.

6. Reboot the firewall.

The system update will run and the firewall will reboot.  Once completed, the machine should boot into the new version of pfSense.

Final steps

Make sure to retain your snapshot of the pfSense until you have completed these steps.

- In System -> Package Manager, Reinstall any packages that have been removed.

- Test the pfSense and determine if it still works as expected after the version upgrade.