v16.05.9 CMR-8 how to upgrade

Question

hi all, 
 i have 2 XG750 running v16.05.9 CMR-8 on HA 
 Q1. can i upgrade directly to v17.5 or i have to go v17.0, then to v17.5 ? 
 thanks in advance 
 newbie in sophos

Vivek Jagad · Answer

Hello chong lim , Thank you for reaching out to the community, following is the upgrade path: ================ v16.05 has declared EoL Would request you re-image the appliance to the latest firmware: https://support.sophos.com/support/s/article/KB-000036812?language=en_US ------------- You can download the ISO from: https://download.sophos.com/network/SophosFirewall/installers/index.html

Vivek Jagad · Answer

You can find it here - Move to a different firmware version: https://docs.sophos.com/nsg/sophos-firewall/18.5/Help/en-us/webhelp/onlinehelp/AdministratorHelp/BackupAndFirmware/Firmware/FirmwareMoveToDifferentVersion/index.html

TheMonzel · Answer

If you get the installers, you could upgrade to 17.0 and afterwards to 17.5. I don't know, whether a direct upgrade to 17.5 was supported nor can I find any informations about this anymore. 
 Once you are on 17.5, you need to install at least 17.5 MR-14 - then you are able to perform an upgrade to the latest 19.0 firmware. 
 If you have an active support subscription: Maybe Sophos Support is able to support you with this - or at least able to get you the old update files. But I am not sure about this. 
 
 This also might help you: Upgrade SFOS 16.05.3 MR-3 to SFOS 18.5.3 MR3-Build408 or SFOS 19.0.0 GA-Build317 - Discussions - Sophos Firewall - Sophos Community