How to obtain other versions of UTM and XG/XGS firmware manually

Hi all

I've rewritten this to be more to the point and assist those who are struggling to find ISOs and Patches of older versions of both UTM and XG/XGS. 

Originally, I couldn't find them other than just the current ISO release which can complicate restorations from backups if your backup firmware version is different to that of the downloadable ISO.

Apologies it covers XG/XGS in the UTM forum as well, if you wish for me to post the XG/XGS part in the XG/XGS then I will.

CREDITS - Dirk and Amodin for posting very useful links which allows you to obtain not only the current release but also previous firmwares so I can't take credit for this at all

I've summarised this below

Sophos UTM full installer – This rebuilds the UT

https://www.sophos.com/en-us/support/downloads/utm-downloads

This link allows you to obtain the firmwares inbetween major ISO releases

https://ftp.astaro.com/#UTM/v9/up2date/

Sophos XG/XGS Installer - This rebuilds the XG/XGS

https://www.sophos.com/de-de/support/downloads/firewall-installers

Sophos XG/XGS Old firmwares/Patches

Sign in to Sophos - "licenses & Account", select "Network Protection", here you find "Firmware updates"

OR

https://download.sophos.com/network/SophosFirewall/installers/index.html

Many thanks