Firmware Upgrade from v17.5 to v19

Are AP's an issue? (This is posted in the Wireless discussion group.) Someone recently posted something in the Firewall group about going from 17.5 to 19, but I can't remember if they got any feedback. Personally, I'd say that if Sophos says that's an OK upgrade path (i.e. not going to 18.5 first) then try it. But it is a fairly large leap. Sorry I don't have anything more concrete to add.

If the XG125 manages APs, I've been very satisfied with switching my AP to Sophos Central and that's one less potential problem when you upgrade the firewall.

Hi patag bura ,

Thanks for reaching out to Sophos Community and I hope you are well.

Prior the upgrade you can always check and verify, upgrade information, release notes, etc. : https://docs.sophos.com/releasenotes/index.html?productGroupID=nsg&productID=xg&versionID=19.0

And as a good practice, always backup current running configuration and OS and allot window hours for the upgrade as it would require downtime. 

Hope this helps and thank you for choosing Sophos

Regards,