I am upgrading FortiOS 7.2.4 firmware from FortiOS 7.0.12. I got the Alert message " Could not find a valid upgrade path for this firmware version. Ensure that upgrading to FortiOS v 7.2.4build1396 from FortiOS v 7.0.12 build0523 is supported, otherwise it may result in the lost of configuration" what does it mean? is it stable or not ?
According to the Upgrade Path utility, the only valid update from 7.0.12 to 7.2 code is directly to 7.2.5, so from 7.0.12 to 7.2.4 is not supported. Can't answer to the stability of 7.2.5 code, so will let someone else chime in on that one.
you might not be able to upgrade from 7.0.12 to 7.2.4 because 7.0.12 was released after 7.2.4; 7.2.4 came out in January 2023, and 7.0.12 in June 2023.
-> 7.0.12 might include bug fixes and changes to the firmware that were not included in 7.2.4 and are only be included in 7.2.5, which was also just released.
As for stability, I'm not aware of any major issues in 7.2.5, but it was only released a short time ago. In any case, I would suggest consulting the release notes to check the known issues section and verify if there is anything of concern.
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